diff -pruN 4.6+git20120811-4/aclocal.m4 4.6.21+20171216ss6cdfd-1/aclocal.m4
--- 4.6+git20120811-4/aclocal.m4	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/aclocal.m4	2017-12-17 00:27:10.000000000 +0000
@@ -1,8 +1,7 @@
-# generated automatically by aclocal 1.11a -*- Autoconf -*-
+# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
+
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
 
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
-# Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -12,33 +11,31 @@
 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 # PARTICULAR PURPOSE.
 
+m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68.136-a1a00],,
-[m4_warning([this file was generated for autoconf 2.68.136-a1a00.
+m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
+[m4_warning([this file was generated for autoconf 2.69.
 You have another version of autoconf.  It may work, but is not guaranteed to.
 If you have problems, you may need to regenerate the build system entirely.
-To do so, use the procedure documented by the package, typically `autoreconf'.])])
+To do so, use the procedure documented by the package, typically 'autoreconf'.])])
 
-# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2011 Free Software
-# Foundation, Inc.
+# Copyright (C) 2002-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 8
-
 # AM_AUTOMAKE_VERSION(VERSION)
 # ----------------------------
 # Automake X.Y traces this macro to ensure aclocal.m4 has been
 # generated from the m4 files accompanying Automake X.Y.
 # (This private macro should not be called outside this file.)
 AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.11a'
+[am__api_version='1.15'
 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
 dnl require some minimum version.  Point them to the right macro.
-m4_if([$1], [1.11a], [],
+m4_if([$1], [1.15.1], [],
       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 ])
 
@@ -54,24 +51,82 @@ m4_define([_AM_AUTOCONF_VERSION], [])
 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.11a])dnl
+[AM_AUTOMAKE_VERSION([1.15.1])dnl
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 
+# Copyright (C) 2011-2017 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_AR([ACT-IF-FAIL])
+# -------------------------
+# Try to determine the archiver interface, and trigger the ar-lib wrapper
+# if it is needed.  If the detection of archiver interface fails, run
+# ACT-IF-FAIL (default is to abort configure with a proper error message).
+AC_DEFUN([AM_PROG_AR],
+[AC_BEFORE([$0], [LT_INIT])dnl
+AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
+AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([ar-lib])dnl
+AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
+: ${AR=ar}
+
+AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
+  [AC_LANG_PUSH([C])
+   am_cv_ar_interface=ar
+   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
+     [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
+      AC_TRY_EVAL([am_ar_try])
+      if test "$ac_status" -eq 0; then
+        am_cv_ar_interface=ar
+      else
+        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
+        AC_TRY_EVAL([am_ar_try])
+        if test "$ac_status" -eq 0; then
+          am_cv_ar_interface=lib
+        else
+          am_cv_ar_interface=unknown
+        fi
+      fi
+      rm -f conftest.lib libconftest.a
+     ])
+   AC_LANG_POP([C])])
+
+case $am_cv_ar_interface in
+ar)
+  ;;
+lib)
+  # Microsoft lib, so override with the ar-lib wrapper script.
+  # FIXME: It is wrong to rewrite AR.
+  # But if we don't then we get into trouble of one sort or another.
+  # A longer-term fix would be to have automake use am__AR in this case,
+  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
+  # similar.
+  AR="$am_aux_dir/ar-lib $AR"
+  ;;
+unknown)
+  m4_default([$1],
+             [AC_MSG_ERROR([could not determine $AR interface])])
+  ;;
+esac
+AC_SUBST([AR])dnl
+])
+
 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 
-# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 1
-
 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
-# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
-# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
+# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
 #
 # Of course, Automake must honor this variable whenever it calls a
 # tool from the auxiliary directory.  The problem is that $srcdir (and
@@ -90,7 +145,7 @@ _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCON
 #
 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
 # are both prefixed by $srcdir.  In an in-source build this is usually
-# harmless because $srcdir is `.', but things will broke when you
+# harmless because $srcdir is '.', but things will broke when you
 # start a VPATH build or use an absolute $srcdir.
 #
 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
@@ -108,23 +163,19 @@ _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCON
 # configured tree to be moved without reconfiguration.
 
 AC_DEFUN([AM_AUX_DIR_EXPAND],
-[dnl Rely on autoconf to set up CDPATH properly.
-AC_PREREQ([2.50])dnl
-# expand $ac_aux_dir to an absolute path
-am_aux_dir=`cd $ac_aux_dir && pwd`
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
 ])
 
 # AM_CONDITIONAL                                            -*- Autoconf -*-
 
-# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008, 2011
-# Free Software Foundation, Inc.
+# Copyright (C) 1997-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 10
-
 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 # -------------------------------------
 # Define a conditional.
@@ -150,16 +201,14 @@ AC_CONFIG_COMMANDS_PRE(
 Usually this means the macro was only invoked conditionally.]])
 fi])])
 
-# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009,
-# 2010, 2011 Free Software Foundation, Inc.
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 14
 
-# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 # written in clear, in which case automake, when reading aclocal.m4,
 # will think it sees a *use*, and therefore will trigger all it's
 # C support machinery.  Also note that it means that autoscan, seeing
@@ -169,7 +218,7 @@ fi])])
 # _AM_DEPENDENCIES(NAME)
 # ----------------------
 # See how the compiler implements dependency checking.
-# NAME is "CC", "CXX", "GCJ", or "OBJC".
+# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 # We try a few techniques and use that to set a single cache variable.
 #
 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
@@ -185,6 +234,7 @@ AC_REQUIRE([AM_DEP_TRACK])dnl
 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
+      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
                     [depcc="$$1"   am_compiler_list=])
@@ -195,8 +245,8 @@ AC_CACHE_CHECK([dependency style of $dep
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
-  # making a dummy file named `D' -- because `-MD' means `put the output
-  # in D'.
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
   rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
@@ -236,16 +286,16 @@ AC_CACHE_CHECK([dependency style of $dep
     : > sub/conftest.c
     for i in 1 2 3 4 5 6; do
       echo '#include "conftst'$i'.h"' >> sub/conftest.c
-      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
-      # Solaris 8's {/usr,}/bin/sh.
-      touch sub/conftst$i.h
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
     done
     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 
-    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
     # mode.  It turns out that the SunPro C++ compiler does not properly
-    # handle `-M -o', and we need to detect this.  Also, some Intel
-    # versions had trouble with output in subdirs
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
     am__obj=sub/conftest.${OBJEXT-o}
     am__minus_obj="-o $am__obj"
     case $depmode in
@@ -254,8 +304,8 @@ AC_CACHE_CHECK([dependency style of $dep
       test "$am__universal" = false || continue
       ;;
     nosideeffect)
-      # after this tag, mechanisms are not by side-effect, so they'll
-      # only be used when explicitly requested
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
       if test "x$enable_dependency_tracking" = xyes; then
 	continue
       else
@@ -263,7 +313,7 @@ AC_CACHE_CHECK([dependency style of $dep
       fi
       ;;
     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
-      # This compiler won't grok `-c -o', but also, the minuso test has
+      # This compiler won't grok '-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
       am__obj=conftest.${OBJEXT-o}
@@ -311,7 +361,7 @@ AM_CONDITIONAL([am__fastdep$1], [
 # AM_SET_DEPDIR
 # -------------
 # Choose a directory name for dependency files.
-# This macro is AC_REQUIREd in _AM_DEPENDENCIES
+# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 AC_DEFUN([AM_SET_DEPDIR],
 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
@@ -342,20 +392,18 @@ _AM_SUBST_NOTMAKE([am__nodep])dnl
 
 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 
-# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
-# Free Software Foundation, Inc.
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-#serial 5
 
 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 # ------------------------------
 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 [{
-  # Autoconf 2.62 quotes --file arguments for eval, but not when files
+  # Older Autoconf quotes --file arguments for eval, but not when files
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
   case $CONFIG_FILES in
@@ -368,7 +416,7 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS
     # Strip MF so we end up with the name of the file.
     mf=`echo "$mf" | sed -e 's/:.*$//'`
     # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named `Makefile.in', but
+    # We used to match only the files named 'Makefile.in', but
     # some people rename them; so instead we look at the file content.
     # Grep'ing the first line is not enough: some people post-process
     # each Makefile.in and add a new line on top of each file to say so.
@@ -380,11 +428,11 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS
       continue
     fi
     # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running `make'.
+    # from the Makefile without running 'make'.
     DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
     test -z "$DEPDIR" && continue
     am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "am__include" && continue
+    test -z "$am__include" && continue
     am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
     # Find all dependency output files, they are included files with
     # $(DEPDIR) in their names.  We invoke sed twice because it is the
@@ -410,7 +458,7 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS
 # This macro should only be invoked once -- use via AC_REQUIRE.
 #
 # This code is only required when automatic dependency tracking
-# is enabled.  FIXME.  This creates each `.P' file that we will
+# is enabled.  FIXME.  This creates each '.P' file that we will
 # need in order to bootstrap the dependency handling code.
 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 [AC_CONFIG_COMMANDS([depfiles],
@@ -420,18 +468,21 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS]
 
 # Do all the work for Automake.                             -*- Autoconf -*-
 
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005, 2006, 2008, 2009, 2011 Free Software Foundation, Inc.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 17
-
 # This macro actually does too much.  Some checks are only needed if
 # your package does certain things.  But this isn't really a big deal.
 
+dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
+m4_define([AC_PROG_CC],
+m4_defn([AC_PROG_CC])
+[_AM_PROG_CC_C_O
+])
+
 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 # AM_INIT_AUTOMAKE([OPTIONS])
 # -----------------------------------------------
@@ -444,7 +495,7 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS]
 # arguments mandatory, and then we can depend on a new Autoconf
 # release and drop the old call support.
 AC_DEFUN([AM_INIT_AUTOMAKE],
-[AC_PREREQ([2.62])dnl
+[AC_PREREQ([2.65])dnl
 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 dnl the ones we care about.
 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
@@ -473,7 +524,9 @@ AC_SUBST([CYGPATH_W])
 # Define the identity of the package.
 dnl Distinguish between old-style and new-style calls.
 m4_ifval([$2],
-[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+[AC_DIAGNOSE([obsolete],
+             [$0: two- and three-arguments forms are deprecated.])
+m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  AC_SUBST([PACKAGE], [$1])dnl
  AC_SUBST([VERSION], [$2])],
 [_AM_SET_OPTIONS([$1])dnl
@@ -499,9 +552,14 @@ AM_MISSING_PROG([AUTOHEADER], [autoheade
 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
-AC_REQUIRE([AM_PROG_MKDIR_P])dnl
-# We need awk for the "check" target.  The system "awk" is bad on
-# some platforms.
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
 AC_REQUIRE([AC_PROG_AWK])dnl
 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
@@ -511,33 +569,81 @@ _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR
 _AM_IF_OPTION([no-dependencies],,
 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 		  [_AM_DEPENDENCIES([CC])],
-		  [define([AC_PROG_CC],
-			  defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
+		  [m4_define([AC_PROG_CC],
+			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 		  [_AM_DEPENDENCIES([CXX])],
-		  [define([AC_PROG_CXX],
-			  defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
+		  [m4_define([AC_PROG_CXX],
+			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 		  [_AM_DEPENDENCIES([OBJC])],
-		  [define([AC_PROG_OBJC],
-			  defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
+		  [m4_define([AC_PROG_OBJC],
+			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
+		  [_AM_DEPENDENCIES([OBJCXX])],
+		  [m4_define([AC_PROG_OBJCXX],
+			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 ])
-_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
-dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
-dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
-dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
+AC_REQUIRE([AM_SILENT_RULES])dnl
+dnl The testsuite driver may need to know about EXEEXT, so add the
+dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
+dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 AC_CONFIG_COMMANDS_PRE(dnl
 [m4_provide_if([_AM_COMPILER_EXEEXT],
   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <http://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
+  fi
+fi
+dnl The trailing newline in this macro's definition is deliberate, for
+dnl backward compatibility and to allow trailing 'dnl'-style comments
+dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 ])
 
-dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 dnl mangled by Autoconf and run in a shell conditional statement.
 m4_define([_AC_COMPILER_EXEEXT],
 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 
-
 # When config.status generates a header, we must update the stamp-h file.
 # This file resides in the same directory as the config header
 # that is generated.  The stamp files are numbered to have different names.
@@ -559,21 +665,18 @@ for _am_header in $config_headers :; do
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 
-# Copyright (C) 2001, 2003, 2005, 2008, 2011 Free Software Foundation,
-# Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 8
-
 # AM_PROG_INSTALL_SH
 # ------------------
 # Define $install_sh.
 AC_DEFUN([AM_PROG_INSTALL_SH],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
@@ -583,14 +686,12 @@ if test x"${install_sh}" != xset; then
 fi
 AC_SUBST([install_sh])])
 
-# Copyright (C) 2003, 2005  Free Software Foundation, Inc.
+# Copyright (C) 2003-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 2
-
 # Check whether the underlying file-system supports filenames
 # with a leading dot.  For instance MS-DOS doesn't.
 AC_DEFUN([AM_SET_LEADING_DOT],
@@ -604,15 +705,12 @@ fi
 rmdir .tst 2>/dev/null
 AC_SUBST([am__leading_dot])])
 
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-# 2006  Free Software Foundation, Inc.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 11
-
 # AM_PATH_LISPDIR
 # ---------------
 AC_DEFUN([AM_PATH_LISPDIR],
@@ -638,7 +736,7 @@ AC_DEFUN([AM_PATH_LISPDIR],
   #  which is non-obvious for non-emacs users.
   # Redirecting /dev/null should help a bit; pity we can't detect "broken"
   #  emacsen earlier and avoid running this altogether.
-  AC_RUN_LOG([$EMACS -batch -q -eval '(while load-path (princ (concat (car load-path) "\n")) (setq load-path (cdr load-path)))' </dev/null >conftest.out])
+  AC_RUN_LOG([$EMACS -batch -Q -eval '(while load-path (princ (concat (car load-path) "\n")) (setq load-path (cdr load-path)))' </dev/null >conftest.out])
 	am_cv_lispdir=`sed -n \
        -e 's,/$,,' \
        -e '/.*\/lib\/x*emacs\/site-lisp$/{s,.*/lib/\(x*emacs/site-lisp\)$,${libdir}/\1,;p;q;}' \
@@ -654,18 +752,14 @@ AC_DEFUN([AM_PATH_LISPDIR],
 AC_SUBST([lispdir])
 ])# AM_PATH_LISPDIR
 
-AU_DEFUN([ud_PATH_LISPDIR], [AM_PATH_LISPDIR])
-
 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
 
-# Copyright (C) 2001, 2002, 2003, 2005, 2009  Free Software Foundation, Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 4
-
 # AM_MAKE_INCLUDE()
 # -----------------
 # Check to see how make treats includes.
@@ -683,7 +777,7 @@ am__quote=
 _am_result=none
 # First try GNU make style include.
 echo "include confinc" > confmf
-# Ignore all kinds of additional output from `make'.
+# Ignore all kinds of additional output from 'make'.
 case `$am_make -s -f confmf 2> /dev/null` in #(
 *the\ am__doit\ target*)
   am__include=include
@@ -708,52 +802,14 @@ AC_MSG_RESULT([$_am_result])
 rm -f confinc confmf
 ])
 
-# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2008
-# Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# serial 6
-
-# AM_PROG_CC_C_O
-# --------------
-# Like AC_PROG_CC_C_O, but changed for automake.
-AC_DEFUN([AM_PROG_CC_C_O],
-[AC_REQUIRE([AC_PROG_CC_C_O])dnl
-AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-AC_REQUIRE_AUX_FILE([compile])dnl
-# FIXME: we rely on the cache variable name because
-# there is no other way.
-set dummy $CC
-am_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
-eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
-if test "$am_t" != yes; then
-   # Losing compiler, so override with the script.
-   # FIXME: It is wrong to rewrite CC.
-   # But if we don't then we get into trouble of one sort or another.
-   # A longer-term fix would be to have automake use am__CC in this case,
-   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
-   CC="$am_aux_dir/compile $CC"
-fi
-dnl Make sure AC_PROG_CC is never called again, or it will override our
-dnl setting of CC.
-m4_define([AC_PROG_CC],
-          [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])
-])
-
 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 
-# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
-# Free Software Foundation, Inc.
+# Copyright (C) 1997-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 6
-
 # AM_MISSING_PROG(NAME, PROGRAM)
 # ------------------------------
 AC_DEFUN([AM_MISSING_PROG],
@@ -761,11 +817,10 @@ AC_DEFUN([AM_MISSING_PROG],
 $1=${$1-"${am_missing_run}$2"}
 AC_SUBST($1)])
 
-
 # AM_MISSING_HAS_RUN
 # ------------------
-# Define MISSING if not defined so far and test if it supports --run.
-# If it does, set am_missing_run to use it, otherwise, to nothing.
+# Define MISSING if not defined so far and test if it is modern enough.
+# If it is, set am_missing_run to use it, otherwise, to nothing.
 AC_DEFUN([AM_MISSING_HAS_RUN],
 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 AC_REQUIRE_AUX_FILE([missing])dnl
@@ -778,29 +833,32 @@ if test x"${MISSING+set}" != xset; then
   esac
 fi
 # Use eval to expand $SHELL
-if eval "$MISSING --run true"; then
-  am_missing_run="$MISSING --run "
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
 else
   am_missing_run=
-  AC_MSG_WARN([`missing' script is too old or missing])
+  AC_MSG_WARN(['missing' script is too old or missing])
 fi
 ])
 
-# Copyright (C) 2003, 2004, 2005, 2006, 2011 Free Software Foundation,
-# Inc.
+# Copyright (C) 2003-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 1
-
 # AM_PROG_MKDIR_P
 # ---------------
-# Check for `mkdir -p'.
+# Check for 'mkdir -p'.
 AC_DEFUN([AM_PROG_MKDIR_P],
 [AC_PREREQ([2.60])dnl
 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+dnl FIXME we are no longer going to remove this! adjust warning
+dnl FIXME message accordingly.
+AC_DIAGNOSE([obsolete],
+[$0: this macro is deprecated, and will soon be removed.
+You should use the Autoconf-provided 'AC][_PROG_MKDIR_P' macro instead,
+and use '$(MKDIR_P)' instead of '$(mkdir_p)'in your Makefile.am files.])
 dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
 dnl while keeping a definition of mkdir_p for backward compatibility.
 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
@@ -817,15 +875,12 @@ esac
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
-# Copyright (C) 2001, 2002, 2003, 2005, 2008, 2010, 2011 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 6
-
 # _AM_MANGLE_OPTION(NAME)
 # -----------------------
 AC_DEFUN([_AM_MANGLE_OPTION],
@@ -849,16 +904,77 @@ AC_DEFUN([_AM_SET_OPTIONS],
 AC_DEFUN([_AM_IF_OPTION],
 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 
-# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
-# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008, 2009, 2010,
-# 2011 Free Software Foundation, Inc.
+# _AM_PROG_CC_C_O
+# ---------------
+# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
+# to automatically call this.
+AC_DEFUN([_AM_PROG_CC_C_O],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([compile])dnl
+AC_LANG_PUSH([C])dnl
+AC_CACHE_CHECK(
+  [whether $CC understands -c and -o together],
+  [am_cv_prog_cc_c_o],
+  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i])
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+AC_LANG_POP([C])])
+
+# For backward compatibility.
+AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
+
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 9
+# AM_RUN_LOG(COMMAND)
+# -------------------
+# Run COMMAND, save the exit status in ac_status, and log it.
+# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
+AC_DEFUN([AM_RUN_LOG],
+[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
+   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   (exit $ac_status); }])
+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
 # AM_SANITY_CHECK
 # ---------------
@@ -874,10 +990,10 @@ case `pwd` in
 esac
 case $srcdir in
   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
-    AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
+    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 esac
 
-# Do `set' in a subshell so we don't clobber the current shell's
+# Do 'set' in a subshell so we don't clobber the current shell's
 # arguments.  Must try -L first in case configure is actually a
 # symlink; some systems play weird games with the mod time of symlinks
 # (eg FreeBSD returns the mod time of the symlink's containing
@@ -935,26 +1051,24 @@ AC_CONFIG_COMMANDS_PRE(
 rm -f conftest.file
 ])
 
-# Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 2
-
 # AM_SILENT_RULES([DEFAULT])
 # --------------------------
 # Enable less verbose build rules; with the default set to DEFAULT
-# (`yes' being less verbose, `no' or empty being verbose).
+# ("yes" being less verbose, "no" or empty being verbose).
 AC_DEFUN([AM_SILENT_RULES],
 [AC_ARG_ENABLE([silent-rules], [dnl
 AS_HELP_STRING(
   [--enable-silent-rules],
-  [less verbose build output (undo: `make V=1')])
+  [less verbose build output (undo: "make V=1")])
 AS_HELP_STRING(
   [--disable-silent-rules],
-  [verbose build output (undo: `make V=0')])dnl
+  [verbose build output (undo: "make V=0")])dnl
 ])
 case $enable_silent_rules in @%:@ (((
   yes) AM_DEFAULT_VERBOSITY=0;;
@@ -962,7 +1076,7 @@ case $enable_silent_rules in @%:@ (((
     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 esac
 dnl
-dnl A few `make' implementations (e.g., NonStop OS and NextStep)
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 dnl do not support nested variable expansions.
 dnl See automake bug#9928 and bug#10237.
 am_make=${MAKE-make}
@@ -980,7 +1094,7 @@ else
   am_cv_make_support_nested_variables=no
 fi])
 if test $am_cv_make_support_nested_variables = yes; then
-  dnl Using `$V' instead of `$(V)' breaks IRIX make.
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
   AM_V='$(V)'
   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 else
@@ -997,44 +1111,40 @@ AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 
-# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 1
-
 # AM_PROG_INSTALL_STRIP
 # ---------------------
-# One issue with vendor `install' (even GNU) is that you can't
+# One issue with vendor 'install' (even GNU) is that you can't
 # specify the program used to strip binaries.  This is especially
 # annoying in cross-compiling environments, where the build's strip
 # is unlikely to handle the host's binaries.
 # Fortunately install-sh will honor a STRIPPROG variable, so we
-# always use install-sh in `make install-strip', and initialize
+# always use install-sh in "make install-strip", and initialize
 # STRIPPROG with the value of the STRIP variable (set by the user).
 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
-# Installed binaries are usually stripped using `strip' when the user
-# run `make install-strip'.  However `strip' might not be the right
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
 # tool to use in cross-compilation environments, therefore Automake
-# will honor the `STRIP' environment variable to overrule this program.
-dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 if test "$cross_compiling" != no; then
   AC_CHECK_TOOL([STRIP], [strip], :)
 fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
-# Copyright (C) 2006, 2008, 2010 Free Software Foundation, Inc.
+# Copyright (C) 2006-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 3
-
 # _AM_SUBST_NOTMAKE(VARIABLE)
 # ---------------------------
 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
@@ -1048,18 +1158,16 @@ AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_
 
 # Check how to create a tarball.                            -*- Autoconf -*-
 
-# Copyright (C) 2004, 2005, 2012 Free Software Foundation, Inc.
+# Copyright (C) 2004-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 2
-
 # _AM_PROG_TAR(FORMAT)
 # --------------------
 # Check how to create a tarball in format FORMAT.
-# FORMAT should be one of `v7', `ustar', or `pax'.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
 #
 # Substitute a variable $(am__tar) that is a command
 # writing to stdout a FORMAT-tarball containing the directory
@@ -1069,85 +1177,125 @@ AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_
 # Substitute a variable $(am__untar) that extract such
 # a tarball read from stdin.
 #     $(am__untar) < result.tar
+#
 AC_DEFUN([_AM_PROG_TAR],
 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 # in the wild :-(  We should find a proper way to deprecate it ...
 AC_SUBST([AMTAR], ['$${TAR-tar}'])
-m4_if([$1], [v7],
-     [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
-     [m4_case([$1], [ustar],, [pax],,
-              [m4_fatal([Unknown tar format])])
-AC_MSG_CHECKING([how to create a $1 tar archive])
-# Loop over all known methods to create a tar archive until one works.
+
+# We'll loop over all known methods to create a tar archive until one works.
 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
-_am_tools=${am_cv_prog_tar_$1-$_am_tools}
-# Do not fold the above two line into one, because Tru64 sh and
-# Solaris sh will not grok spaces in the rhs of `-'.
-for _am_tool in $_am_tools
-do
-  case $_am_tool in
-  gnutar)
-    for _am_tar in tar gnutar gtar;
-    do
-      AM_RUN_LOG([$_am_tar --version]) && break
-    done
-    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
-    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
-    am__untar="$_am_tar -xf -"
-    ;;
-  plaintar)
-    # Must skip GNU tar: if it does not support --format= it doesn't create
-    # ustar tarball either.
-    (tar --version) >/dev/null 2>&1 && continue
-    am__tar='tar chf - "$$tardir"'
-    am__tar_='tar chf - "$tardir"'
-    am__untar='tar xf -'
-    ;;
-  pax)
-    am__tar='pax -L -x $1 -w "$$tardir"'
-    am__tar_='pax -L -x $1 -w "$tardir"'
-    am__untar='pax -r'
-    ;;
-  cpio)
-    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
-    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
-    am__untar='cpio -i -H $1 -d'
-    ;;
-  none)
-    am__tar=false
-    am__tar_=false
-    am__untar=false
-    ;;
-  esac
 
-  # If the value was cached, stop now.  We just wanted to have am__tar
-  # and am__untar set.
-  test -n "${am_cv_prog_tar_$1}" && break
+m4_if([$1], [v7],
+  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 
-  # tar/untar a dummy directory, and stop if the command works
-  rm -rf conftest.dir
-  mkdir conftest.dir
-  echo GrepMe > conftest.dir/file
-  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+  [m4_case([$1],
+    [ustar],
+     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+      if test $am_uid -le $am_max_uid; then
+         AC_MSG_RESULT([yes])
+      else
+         AC_MSG_RESULT([no])
+         _am_tools=none
+      fi
+      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+      if test $am_gid -le $am_max_gid; then
+         AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no])
+        _am_tools=none
+      fi],
+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        AM_RUN_LOG([$_am_tar --version]) && break
+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x $1 -w "$$tardir"'
+      am__tar_='pax -L -x $1 -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+      am__untar='cpio -i -H $1 -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_$1}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      AM_RUN_LOG([$am__untar <conftest.tar])
+      AM_RUN_LOG([cat conftest.dir/file])
+      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+    fi
+  done
   rm -rf conftest.dir
-  if test -s conftest.tar; then
-    AM_RUN_LOG([$am__untar <conftest.tar])
-    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
-  fi
-done
-rm -rf conftest.dir
 
-AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
-AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
 AC_SUBST([am__tar])
 AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
 m4_include([m4/00gnulib.m4])
+m4_include([m4/absolute-header.m4])
 m4_include([m4/alloca.m4])
 m4_include([m4/asm-underscore.m4])
 m4_include([m4/autobuild.m4])
 m4_include([m4/btowc.m4])
+m4_include([m4/builtin-expect.m4])
 m4_include([m4/calloc.m4])
 m4_include([m4/chdir-long.m4])
 m4_include([m4/close-stream.m4])
@@ -1156,6 +1304,7 @@ m4_include([m4/closedir.m4])
 m4_include([m4/closeout.m4])
 m4_include([m4/codeset.m4])
 m4_include([m4/configmake.m4])
+m4_include([m4/ctype.m4])
 m4_include([m4/d-ino.m4])
 m4_include([m4/dirent_h.m4])
 m4_include([m4/dirfd.m4])
@@ -1171,6 +1320,7 @@ m4_include([m4/exponentd.m4])
 m4_include([m4/exponentf.m4])
 m4_include([m4/exponentl.m4])
 m4_include([m4/extensions.m4])
+m4_include([m4/extern-inline.m4])
 m4_include([m4/fchdir.m4])
 m4_include([m4/fcntl-o.m4])
 m4_include([m4/fcntl.m4])
@@ -1179,6 +1329,7 @@ m4_include([m4/fdopen.m4])
 m4_include([m4/fdopendir.m4])
 m4_include([m4/fflush.m4])
 m4_include([m4/filenamecat.m4])
+m4_include([m4/flexmember.m4])
 m4_include([m4/float_h.m4])
 m4_include([m4/fnmatch.m4])
 m4_include([m4/fopen.m4])
@@ -1192,6 +1343,7 @@ m4_include([m4/frexp.m4])
 m4_include([m4/frexpl.m4])
 m4_include([m4/fseek.m4])
 m4_include([m4/fseeko.m4])
+m4_include([m4/fseterr.m4])
 m4_include([m4/fstat.m4])
 m4_include([m4/fstatat.m4])
 m4_include([m4/ftell.m4])
@@ -1203,20 +1355,23 @@ m4_include([m4/getdelim.m4])
 m4_include([m4/getdtablesize.m4])
 m4_include([m4/getopt.m4])
 m4_include([m4/getpagesize.m4])
+m4_include([m4/getprogname.m4])
 m4_include([m4/gettext.m4])
+m4_include([m4/gettimeofday.m4])
 m4_include([m4/glibc21.m4])
 m4_include([m4/gnu-make.m4])
 m4_include([m4/gnulib-common.m4])
 m4_include([m4/gnulib-comp.m4])
+m4_include([m4/hard-locale.m4])
 m4_include([m4/iconv.m4])
 m4_include([m4/include_next.m4])
-m4_include([m4/inline.m4])
 m4_include([m4/intlmacosx.m4])
 m4_include([m4/intmax_t.m4])
 m4_include([m4/inttostr.m4])
 m4_include([m4/inttypes-pri.m4])
 m4_include([m4/inttypes.m4])
 m4_include([m4/inttypes_h.m4])
+m4_include([m4/isblank.m4])
 m4_include([m4/isnand.m4])
 m4_include([m4/isnanf.m4])
 m4_include([m4/isnanl.m4])
@@ -1229,12 +1384,14 @@ m4_include([m4/lib-ld.m4])
 m4_include([m4/lib-link.m4])
 m4_include([m4/lib-prefix.m4])
 m4_include([m4/libunistring-base.m4])
+m4_include([m4/limits-h.m4])
 m4_include([m4/localcharset.m4])
 m4_include([m4/locale-fr.m4])
 m4_include([m4/locale-ja.m4])
 m4_include([m4/locale-tr.m4])
 m4_include([m4/locale-zh.m4])
 m4_include([m4/locale_h.m4])
+m4_include([m4/localeconv.m4])
 m4_include([m4/localename.m4])
 m4_include([m4/lock.m4])
 m4_include([m4/longlong.m4])
@@ -1254,6 +1411,7 @@ m4_include([m4/mbtowc.m4])
 m4_include([m4/memchr.m4])
 m4_include([m4/mempcpy.m4])
 m4_include([m4/memrchr.m4])
+m4_include([m4/minmax.m4])
 m4_include([m4/mmap-anon.m4])
 m4_include([m4/mode_t.m4])
 m4_include([m4/msvc-inval.m4])
@@ -1262,6 +1420,8 @@ m4_include([m4/multiarch.m4])
 m4_include([m4/nl_langinfo.m4])
 m4_include([m4/nls.m4])
 m4_include([m4/nocrash.m4])
+m4_include([m4/obstack.m4])
+m4_include([m4/off_t.m4])
 m4_include([m4/open.m4])
 m4_include([m4/openat.m4])
 m4_include([m4/opendir.m4])
@@ -1274,6 +1434,7 @@ m4_include([m4/printf-frexpl.m4])
 m4_include([m4/printf-posix-rpl.m4])
 m4_include([m4/printf.m4])
 m4_include([m4/progtest.m4])
+m4_include([m4/pthread_rwlock_rdlock.m4])
 m4_include([m4/putenv.m4])
 m4_include([m4/quote.m4])
 m4_include([m4/quotearg.m4])
@@ -1286,10 +1447,12 @@ m4_include([m4/setenv.m4])
 m4_include([m4/setlocale.m4])
 m4_include([m4/signbit.m4])
 m4_include([m4/size_max.m4])
+m4_include([m4/sleep.m4])
 m4_include([m4/snprintf.m4])
 m4_include([m4/sprintf-posix.m4])
 m4_include([m4/ssize_t.m4])
 m4_include([m4/stat.m4])
+m4_include([m4/stdalign.m4])
 m4_include([m4/stdbool.m4])
 m4_include([m4/stddef_h.m4])
 m4_include([m4/stdint.m4])
@@ -1300,7 +1463,6 @@ m4_include([m4/strcase.m4])
 m4_include([m4/strcasestr.m4])
 m4_include([m4/strdup.m4])
 m4_include([m4/strerror.m4])
-m4_include([m4/strerror_r.m4])
 m4_include([m4/string_h.m4])
 m4_include([m4/strings_h.m4])
 m4_include([m4/strndup.m4])
@@ -1310,6 +1472,7 @@ m4_include([m4/symlink.m4])
 m4_include([m4/sys_ioctl_h.m4])
 m4_include([m4/sys_socket_h.m4])
 m4_include([m4/sys_stat_h.m4])
+m4_include([m4/sys_time_h.m4])
 m4_include([m4/sys_types_h.m4])
 m4_include([m4/thread.m4])
 m4_include([m4/threadlib.m4])
@@ -1317,6 +1480,7 @@ m4_include([m4/time_h.m4])
 m4_include([m4/ungetc.m4])
 m4_include([m4/unistd-safer.m4])
 m4_include([m4/unistd_h.m4])
+m4_include([m4/usleep.m4])
 m4_include([m4/vasnprintf.m4])
 m4_include([m4/vfprintf-posix.m4])
 m4_include([m4/warn-on-use.m4])
diff -pruN 4.6+git20120811-4/bootstrap 4.6.21+20171216ss6cdfd-1/bootstrap
--- 4.6+git20120811-4/bootstrap	2013-08-18 20:23:29.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/bootstrap	2017-01-20 07:05:26.000000000 +0000
@@ -1,10 +1,10 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2012-07-19.14; # UTC
+scriptversion=2017-01-09.19; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2012 Free Software Foundation, Inc.
+# Copyright (C) 2003-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -42,6 +42,9 @@ export LC_ALL
 
 local_gl_dir=gl
 
+# Honor $PERL, but work even if there is none.
+PERL="${PERL-perl}"
+
 me=$0
 
 usage() {
@@ -140,20 +143,21 @@ po_download_command_format2=\
 "wget --mirror -nd -q -np -A.po -P '%s' \
  http://translationproject.org/latest/%s/"
 
+# Prefer a non-empty tarname (4th argument of AC_INIT if given), else
+# fall back to the package name (1st argument with munging)
 extract_package_name='
-  /^AC_INIT(/{
-     /.*,.*,.*, */{
-       s///
-       s/[][]//g
-       s/)$//
+  /^AC_INIT(\[*/{
+     s///
+     /^[^,]*,[^,]*,[^,]*,[ []*\([^][ ,)]\)/{
+       s//\1/
+       s/[],)].*//
        p
        q
      }
-     s/AC_INIT(\[*//
-     s/]*,.*//
+     s/[],)].*//
      s/^GNU //
      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
-     s/[^A-Za-z0-9_]/-/g
+     s/[^abcdefghijklmnopqrstuvwxyz0123456789_]/-/g
      p
   }
 '
@@ -208,12 +212,26 @@ bootstrap_sync=false
 # Use git to update gnulib sources
 use_git=true
 
+check_exists() {
+  if test "$1" = "--verbose"; then
+    ($2 --version </dev/null) >/dev/null 2>&1
+    if test $? -ge 126; then
+      # If not found, run with diagnostics as one may be
+      # presented with env variables to set to find the right version
+      ($2 --version </dev/null)
+    fi
+  else
+    ($1 --version </dev/null) >/dev/null 2>&1
+  fi
+
+  test $? -lt 126
+}
+
 # find_tool ENVVAR NAMES...
 # -------------------------
 # Search for a required program.  Use the value of ENVVAR, if set,
-# otherwise find the first of the NAMES that can be run (i.e.,
-# supports --version).  If found, set ENVVAR to the program name,
-# die otherwise.
+# otherwise find the first of the NAMES that can be run.
+# If found, set ENVVAR to the program name, die otherwise.
 #
 # FIXME: code duplication, see also gnu-web-doc-update.
 find_tool ()
@@ -223,27 +241,21 @@ find_tool ()
   find_tool_names=$@
   eval "find_tool_res=\$$find_tool_envvar"
   if test x"$find_tool_res" = x; then
-    for i
-    do
-      if ($i --version </dev/null) >/dev/null 2>&1; then
-       find_tool_res=$i
-       break
+    for i; do
+      if check_exists $i; then
+        find_tool_res=$i
+        break
       fi
     done
-  else
-    find_tool_error_prefix="\$$find_tool_envvar: "
   fi
-  test x"$find_tool_res" != x \
-    || die "one of these is required: $find_tool_names"
-  ($find_tool_res --version </dev/null) >/dev/null 2>&1 \
-    || die "${find_tool_error_prefix}cannot run $find_tool_res --version"
+  if test x"$find_tool_res" = x; then
+    warn_ "one of these is required: $find_tool_names;"
+    die   "alternatively set $find_tool_envvar to a compatible tool"
+  fi
   eval "$find_tool_envvar=\$find_tool_res"
   eval "export $find_tool_envvar"
 }
 
-# Find sha1sum, named gsha1sum on MacPorts, and shasum on Mac OS X 10.6.
-find_tool SHA1SUM sha1sum gsha1sum shasum
-
 # Override the default configuration, if necessary.
 # Make sure that bootstrap.conf is sourced from the current directory
 # if we were invoked as "sh bootstrap".
@@ -255,12 +267,12 @@ esac
 # Extra files from gnulib, which override files from other sources.
 test -z "${gnulib_extra_files}" && \
   gnulib_extra_files="
-        $build_aux/install-sh
-        $build_aux/mdate-sh
-        $build_aux/texinfo.tex
-        $build_aux/depcomp
-        $build_aux/config.guess
-        $build_aux/config.sub
+        build-aux/install-sh
+        build-aux/mdate-sh
+        build-aux/texinfo.tex
+        build-aux/depcomp
+        build-aux/config.guess
+        build-aux/config.sub
         doc/INSTALL
 "
 
@@ -306,34 +318,34 @@ if test -n "$checkout_only_file" && test
   die "Bootstrapping from a non-checked-out distribution is risky."
 fi
 
-# Ensure that lines starting with ! sort last, per gitignore conventions
-# for whitelisting exceptions after a more generic blacklist pattern.
-sort_patterns() {
-  sort -u "$@" | sed '/^!/ {
-    H
-    d
-  }
-  $ {
-    P
-    x
-    s/^\n//
-  }' | sed '/^$/d'
+# Strip blank and comment lines to leave significant entries.
+gitignore_entries() {
+  sed '/^#/d; /^$/d' "$@"
 }
 
-# If $STR is not already on a line by itself in $FILE, insert it,
-# sorting the new contents of the file and replacing $FILE with the result.
-insert_sorted_if_absent() {
+# If $STR is not already on a line by itself in $FILE, insert it at the start.
+# Entries are inserted at the start of the ignore list to ensure existing
+# entries starting with ! are not overridden.  Such entries support
+# whitelisting exceptions after a more generic blacklist pattern.
+insert_if_absent() {
   file=$1
   str=$2
   test -f $file || touch $file
-  echo "$str" | sort_patterns - $file | cmp -s - $file > /dev/null \
-    || { echo "$str" | sort_patterns - $file > $file.bak \
-      && mv $file.bak $file; } \
-    || die "insert_sorted_if_absent $file $str: failed"
+  test -r $file || die "Error: failed to read ignore file: $file"
+  duplicate_entries=$(gitignore_entries $file | sort | uniq -d)
+  if [ "$duplicate_entries" ] ; then
+    die "Error: Duplicate entries in $file: " $duplicate_entries
+  fi
+  linesold=$(gitignore_entries $file | wc -l)
+  linesnew=$( { echo "$str"; cat $file; } | gitignore_entries | sort -u | wc -l)
+  if [ $linesold != $linesnew ] ; then
+    { echo "$str" | cat - $file > $file.bak && mv $file.bak $file; } \
+      || die "insert_if_absent $file $str: failed"
+  fi
 }
 
 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
-# insert_sorted_if_absent.
+# insert_if_absent.
 insert_vc_ignore() {
   vc_ignore_file="$1"
   pattern="$2"
@@ -344,7 +356,7 @@ insert_vc_ignore() {
     # .gitignore entry.
     pattern=$(echo "$pattern" | sed s,^,/,);;
   esac
-  insert_sorted_if_absent "$vc_ignore_file" "$pattern"
+  insert_if_absent "$vc_ignore_file" "$pattern"
 }
 
 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
@@ -406,28 +418,30 @@ sort_ver() { # sort -V is not generally
   done
 }
 
+get_version_sed='
+# Move version to start of line.
+s/.*[v ]\([0-9]\)/\1/
+
+# Skip lines that do not start with version.
+/^[0-9]/!d
+
+# Remove characters after the version.
+s/[^.a-z0-9-].*//
+
+# The first component must be digits only.
+s/^\([0-9]*\)[a-z-].*/\1/
+
+#the following essentially does s/5.005/5.5/
+s/\.0*\([1-9]\)/.\1/g
+p
+q'
+
 get_version() {
   app=$1
 
-  $app --version >/dev/null 2>&1 || return 1
+  $app --version >/dev/null 2>&1 || { $app --version; return 1; }
 
-  $app --version 2>&1 |
-  sed -n '# Move version to start of line.
-          s/.*[v ]\([0-9]\)/\1/
-
-          # Skip lines that do not start with version.
-          /^[0-9]/!d
-
-          # Remove characters after the version.
-          s/[^.a-z0-9-].*//
-
-          # The first component must be digits only.
-          s/^\([0-9]*\)[a-z-].*/\1/
-
-          #the following essentially does s/5.005/5.5/
-          s/\.0*\([1-9]\)/.\1/g
-          p
-          q'
+  $app --version 2>&1 | sed -n "$get_version_sed"
 }
 
 check_versions() {
@@ -447,6 +461,7 @@ check_versions() {
     test "$appvar" = TAR && appvar=AMTAR
     case $appvar in
         GZIP) ;; # Do not use $GZIP:  it contains gzip options.
+        PERL::*) ;; # Keep perl modules as-is
         *) eval "app=\${$appvar-$app}" ;;
     esac
 
@@ -464,12 +479,22 @@ check_versions() {
           ret=1
           continue
         } ;;
+      # Another check is for perl modules.  These can be written as
+      # e.g. perl::XML::XPath in case of XML::XPath module, etc.
+      perl::*)
+        # Extract module name
+        app="${app#perl::}"
+        if ! $PERL -m"$app" -e 'exit 0' >/dev/null 2>&1; then
+          warn_ "Error: perl module '$app' not found"
+          ret=1
+        fi
+        continue
+        ;;
     esac
     if [ "$req_ver" = "-" ]; then
       # Merely require app to exist; not all prereq apps are well-behaved
       # so we have to rely on $? rather than get_version.
-      $app --version >/dev/null 2>&1
-      if [ 126 -le $? ]; then
+      if ! check_exists --verbose $app; then
         warn_ "Error: '$app' not found"
         ret=1
       fi
@@ -502,6 +527,12 @@ print_versions() {
   # can't depend on column -t
 }
 
+# Find sha1sum, named gsha1sum on MacPorts, shasum on Mac OS X 10.6.
+# Also find the compatible sha1 utility on the BSDs
+if test x"$SKIP_PO" = x; then
+  find_tool SHA1SUM sha1sum gsha1sum shasum sha1
+fi
+
 use_libtool=0
 # We'd like to use grep -E, to see if any of LT_INIT,
 # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
@@ -547,13 +578,21 @@ if ! printf "$buildreq" | check_versions
   fi
 fi
 
+# Warn the user if autom4te appears to be broken; this causes known
+# issues with at least gettext 0.18.3.
+probe=$(echo 'm4_quote([hi])' | autom4te -l M4sugar -t 'm4_quote:$%' -)
+if test "x$probe" != xhi; then
+  warn_ "WARNING: your autom4te wrapper eats stdin;"
+  warn_ "if bootstrap fails, consider upgrading your autotools"
+fi
+
 echo "$0: Bootstrapping from checked-out $package sources..."
 
 # See if we can use gnulib's git-merge-changelog merge driver.
-if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
+if $use_git && test -d .git && check_exists git; then
   if git config merge.merge-changelog.driver >/dev/null ; then
     :
-  elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
+  elif check_exists git-merge-changelog; then
     echo "$0: initializing git-merge-changelog driver"
     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
@@ -573,17 +612,21 @@ git_modules_config () {
   test -f .gitmodules && git config --file .gitmodules "$@"
 }
 
-gnulib_path=$(git_modules_config submodule.gnulib.path)
-test -z "$gnulib_path" && gnulib_path=gnulib
+if $use_git; then
+  gnulib_path=$(git_modules_config submodule.gnulib.path)
+  test -z "$gnulib_path" && gnulib_path=gnulib
+fi
 
-# Get gnulib files.
+# Get gnulib files.  Populate $GNULIB_SRCDIR, possibly updating a
+# submodule, for use in the rest of the script.
 
 case ${GNULIB_SRCDIR--} in
 -)
+  # Note that $use_git is necessarily true in this case.
   if git_modules_config submodule.gnulib.url >/dev/null; then
     echo "$0: getting gnulib files..."
-    git submodule init || exit $?
-    git submodule update || exit $?
+    git submodule init -- "$gnulib_path" || exit $?
+    git submodule update -- "$gnulib_path" || exit $?
 
   elif [ ! -d "$gnulib_path" ]; then
     echo "$0: getting gnulib files..."
@@ -600,8 +643,8 @@ case ${GNULIB_SRCDIR--} in
   GNULIB_SRCDIR=$gnulib_path
   ;;
 *)
-  # Use GNULIB_SRCDIR as a reference.
-  if test -d "$GNULIB_SRCDIR"/.git && \
+  # Use GNULIB_SRCDIR directly or as a reference.
+  if $use_git && test -d "$GNULIB_SRCDIR"/.git && \
         git_modules_config submodule.gnulib.url >/dev/null; then
     echo "$0: getting gnulib files..."
     if git submodule -h|grep -- --reference > /dev/null; then
@@ -612,13 +655,14 @@ case ${GNULIB_SRCDIR--} in
       # This fallback allows at least git 1.5.5.
       if test -f "$gnulib_path"/gnulib-tool; then
         # Since file already exists, assume submodule init already complete.
-        git submodule update || exit $?
+        git submodule update -- "$gnulib_path" || exit $?
       else
         # Older git can't clone into an empty directory.
         rmdir "$gnulib_path" 2>/dev/null
         git clone --reference "$GNULIB_SRCDIR" \
           "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
-          && git submodule init && git submodule update \
+          && git submodule init -- "$gnulib_path" \
+          && git submodule update -- "$gnulib_path" \
           || exit $?
       fi
     fi
@@ -627,12 +671,19 @@ case ${GNULIB_SRCDIR--} in
   ;;
 esac
 
+# $GNULIB_SRCDIR now points to the version of gnulib to use, and
+# we no longer need to use git or $gnulib_path below here.
+
 if $bootstrap_sync; then
   cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
     echo "$0: updating bootstrap and restarting..."
+    case $(sh -c 'echo "$1"' -- a) in
+      a) ignored=--;;
+      *) ignored=ignored;;
+    esac
     exec sh -c \
       'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
-      -- "$GNULIB_SRCDIR/build-aux/bootstrap" \
+      $ignored "$GNULIB_SRCDIR/build-aux/bootstrap" \
       "$0" "$@" --no-bootstrap-sync
   }
 fi
@@ -680,11 +731,10 @@ update_po_files() {
     cksum_file="$ref_po_dir/$po.s1"
     if ! test -f "$cksum_file" ||
         ! test -f "$po_dir/$po.po" ||
-        ! $SHA1SUM -c --status "$cksum_file" \
-            < "$new_po" > /dev/null; then
+        ! $SHA1SUM -c "$cksum_file" < "$new_po" > /dev/null 2>&1; then
       echo "$me: updated $po_dir/$po.po..."
       cp "$new_po" "$po_dir/$po.po" \
-          && $SHA1SUM < "$new_po" > "$cksum_file"
+          && $SHA1SUM < "$new_po" > "$cksum_file" || return
     fi
   done
 }
@@ -740,7 +790,7 @@ symlink_to_dir()
       # Leave any existing symlink alone, if it already points to the source,
       # so that broken build tools that care about symlink times
       # aren't confused into doing unnecessary builds.  Conversely, if the
-      # existing symlink's time stamp is older than the source, make it afresh,
+      # existing symlink's timestamp is older than the source, make it afresh,
       # so that broken tools aren't confused into skipping needed builds.  See
       # <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
       test -h "$dst" &&
@@ -867,7 +917,8 @@ if test $use_libtool = 1; then
   esac
 fi
 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
-$gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
+$gnulib_tool $gnulib_tool_options --import $gnulib_modules \
+  || die "gnulib-tool failed"
 
 for file in $gnulib_files; do
   symlink_to_dir "$GNULIB_SRCDIR" $file \
@@ -889,20 +940,21 @@ find "$m4_base" "$source_base" \
   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
   -type l -xtype l -delete > /dev/null 2>&1
 
+# Invoke autoreconf with --force --install to ensure upgrades of tools
+# such as ylwrap.
+AUTORECONFFLAGS="--verbose --install --force -I $m4_base $ACLOCAL_FLAGS"
+
 # Some systems (RHEL 5) are using ancient autotools, for which the
 # --no-recursive option had not been invented.  Detect that lack and
 # omit the option when it's not supported.  FIXME in 2017: remove this
 # hack when RHEL 5 autotools are updated, or when they become irrelevant.
-no_recursive=
 case $($AUTORECONF --help) in
-  *--no-recursive*) no_recursive=--no-recursive;;
+  *--no-recursive*) AUTORECONFFLAGS="$AUTORECONFFLAGS --no-recursive";;
 esac
 
 # Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
-echo "running: AUTOPOINT=true LIBTOOLIZE=true " \
-    "$AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS"
-AUTOPOINT=true LIBTOOLIZE=true \
-    $AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS \
+echo "running: AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS"
+AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS \
   || die "autoreconf failed"
 
 # Get some extra files from gnulib, overriding existing files.
@@ -971,6 +1023,6 @@ echo "$0: done.  Now you can run './conf
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/bootstrap.conf 4.6.21+20171216ss6cdfd-1/bootstrap.conf
--- 4.6+git20120811-4/bootstrap.conf	2013-08-18 20:23:29.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/bootstrap.conf	2017-01-20 07:10:05.000000000 +0000
@@ -1,6 +1,6 @@
 # Bootstrap configuration.
 
-# Copyright (C) 2006-2012 Free Software Foundation, Inc.
+# Copyright (C) 2006-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff -pruN 4.6+git20120811-4/build-aux/announce-gen 4.6.21+20171216ss6cdfd-1/build-aux/announce-gen
--- 4.6+git20120811-4/build-aux/announce-gen	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/announce-gen	2017-01-20 07:05:41.000000000 +0000
@@ -1,15 +1,15 @@
-eval '(exit $?0)' && eval 'exec perl -wS "$0" ${1+"$@"}'
+eval '(exit $?0)' && eval 'exec perl -wS "$0" "$@"'
   & eval 'exec perl -wS "$0" $argv:q'
     if 0;
 # Generate a release announcement message.
 
-my $VERSION = '2012-01-06 07:46'; # UTC
+my $VERSION = '2016-01-12 23:09'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
-# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -29,14 +29,19 @@ my $VERSION = '2012-01-06 07:46'; # UTC
 use strict;
 
 use Getopt::Long;
-use Digest::MD5;
-use Digest::SHA1;
 use POSIX qw(strftime);
 
 (my $ME = $0) =~ s|.*/||;
 
 my %valid_release_types = map {$_ => 1} qw (alpha beta stable);
 my @archive_suffixes = ('tar.gz', 'tar.bz2', 'tar.lzma', 'tar.xz');
+my %digest_classes =
+  (
+   'md5' => (eval { require Digest::MD5; } and 'Digest::MD5'),
+   'sha1' => ((eval { require Digest::SHA; } and 'Digest::SHA')
+              or (eval { require Digest::SHA1; } and 'Digest::SHA1'))
+  );
+my $srcdir = '.';
 
 sub usage ($)
 {
@@ -51,7 +56,7 @@ sub usage ($)
       my @types = sort keys %valid_release_types;
       print $STREAM <<EOF;
 Usage: $ME [OPTIONS]
-Generate an announcement message.
+Generate an announcement message.  Run this from builddir.
 
 OPTIONS:
 
@@ -66,7 +71,9 @@ These options must be specified:
 
 The following are optional:
 
-   --news=NEWS_FILE
+   --news=NEWS_FILE             include the NEWS section about this release
+                                from this NEWS_FILE; accumulates.
+   --srcdir=DIR                 where to find the NEWS_FILEs (default: $srcdir)
    --bootstrap-tools=TOOL_LIST  a comma-separated list of tools, e.g.,
                                 autoconf,automake,bison,gnulib
    --gnulib-version=VERSION     report VERSION as the gnulib version, where
@@ -102,13 +109,13 @@ sub sizes (@)
   my %res;
   foreach my $f (@file)
     {
-      my $cmd = "du --human $f";
+      my $cmd = "du -h $f";
       my $t = `$cmd`;
       # FIXME-someday: give a better diagnostic, a la $PROCESS_STATUS
       $@
-        and (warn "$ME: command failed: '$cmd'\n"), $fail = 1;
+        and (warn "command failed: '$cmd'\n"), $fail = 1;
       chomp $t;
-      $t =~ s/^([\d.]+[MkK]).*/${1}B/;
+      $t =~ s/^\s*([\d.]+[MkK]).*/${1}B/;
       $res{$f} = $t;
     }
   return $fail ? undef : %res;
@@ -153,15 +160,13 @@ sub print_checksums (@)
 
   foreach my $meth (qw (md5 sha1))
     {
+      my $class = $digest_classes{$meth} or next;
       foreach my $f (@file)
         {
           open IN, '<', $f
             or die "$ME: $f: cannot open for reading: $!\n";
           binmode IN;
-          my $dig =
-            ($meth eq 'md5'
-             ? Digest::MD5->new->addfile(*IN)->hexdigest
-             : Digest::SHA1->new->addfile(*IN)->hexdigest);
+          my $dig = $class->new->addfile(*IN)->hexdigest;
           close IN;
           print "$dig  $f\n";
         }
@@ -181,7 +186,7 @@ sub print_news_deltas ($$$)
   my ($news_file, $prev_version, $curr_version) = @_;
 
   my $news_name = $news_file;
-  $news_name =~ s|^\./||;
+  $news_name =~ s|^\Q$srcdir\E/||;
 
   print "\n$news_name\n\n";
 
@@ -310,7 +315,7 @@ sub print_changelog_deltas ($$)
   # The exit code should be 1.
   # Allow in case there are no modified ChangeLog entries.
   $? == 256 || $? == 128
-    or warn "$ME: warning: '$cmd' had unexpected exit code or signal ($?)\n";
+    or warn "warning: '$cmd' had unexpected exit code or signal ($?)\n";
 }
 
 sub get_tool_versions ($$)
@@ -340,7 +345,7 @@ sub get_tool_versions ($$)
         {
           defined $first_line
             and $first_line = '';
-          warn "$ME: $t: unexpected --version output\n:$first_line";
+          warn "$t: unexpected --version output\n:$first_line";
           $fail = 1;
         }
     }
@@ -368,6 +373,15 @@ sub get_tool_versions ($$)
   my $gnulib_version;
   my $print_checksums_p = 1;
 
+  # Reformat the warnings before displaying them.
+  local $SIG{__WARN__} = sub
+    {
+      my ($msg) = @_;
+      # Warnings from GetOptions.
+      $msg =~ s/Option (\w)/option --$1/;
+      warn "$ME: $msg";
+    };
+
   GetOptions
     (
      'mail-headers=s'     => \$mail_headers,
@@ -378,6 +392,7 @@ sub get_tool_versions ($$)
      'gpg-key-id=s'       => \$gpg_key_id,
      'url-directory=s'    => \@url_dir_list,
      'news=s'             => \@news_file,
+     'srcdir=s'           => \$srcdir,
      'bootstrap-tools=s'  => \$bootstrap_tools,
      'gnulib-version=s'   => \$gnulib_version,
      'print-checksums!'   => \$print_checksums_p,
@@ -388,32 +403,33 @@ sub get_tool_versions ($$)
     ) or usage 1;
 
   my $fail = 0;
-  # Ensure that sure each required option is specified.
+  # Ensure that each required option is specified.
   $release_type
-    or (warn "$ME: release type not specified\n"), $fail = 1;
+    or (warn "release type not specified\n"), $fail = 1;
   $package_name
-    or (warn "$ME: package name not specified\n"), $fail = 1;
+    or (warn "package name not specified\n"), $fail = 1;
   $prev_version
-    or (warn "$ME: previous version string not specified\n"), $fail = 1;
+    or (warn "previous version string not specified\n"), $fail = 1;
   $curr_version
-    or (warn "$ME: current version string not specified\n"), $fail = 1;
+    or (warn "current version string not specified\n"), $fail = 1;
   $gpg_key_id
-    or (warn "$ME: GnuPG key ID not specified\n"), $fail = 1;
+    or (warn "GnuPG key ID not specified\n"), $fail = 1;
   @url_dir_list
-    or (warn "$ME: URL directory name(s) not specified\n"), $fail = 1;
+    or (warn "URL directory name(s) not specified\n"), $fail = 1;
 
-  my @tool_list = split ',', $bootstrap_tools;
+  my @tool_list = split ',', $bootstrap_tools
+    if $bootstrap_tools;
 
   grep (/^gnulib$/, @tool_list) ^ defined $gnulib_version
-    and (warn "$ME: when specifying gnulib as a tool, you must also specify\n"
+    and (warn "when specifying gnulib as a tool, you must also specify\n"
         . "--gnulib-version=V, where V is the result of running git describe\n"
         . "in the gnulib source directory.\n"), $fail = 1;
 
-  exists $valid_release_types{$release_type}
-    or (warn "$ME: '$release_type': invalid release type\n"), $fail = 1;
+  !$release_type || exists $valid_release_types{$release_type}
+    or (warn "'$release_type': invalid release type\n"), $fail = 1;
 
   @ARGV
-    and (warn "$ME: too many arguments:\n", join ("\n", @ARGV), "\n"),
+    and (warn "too many arguments:\n", join ("\n", @ARGV), "\n"),
       $fail = 1;
   $fail
     and usage 1;
@@ -536,6 +552,6 @@ EOF
 ## eval: (add-hook 'write-file-hooks 'time-stamp)
 ## time-stamp-start: "my $VERSION = '"
 ## time-stamp-format: "%:y-%02m-%02d %02H:%02M"
-## time-stamp-time-zone: "UTC"
+## time-stamp-time-zone: "UTC0"
 ## time-stamp-end: "'; # UTC"
 ## End:
diff -pruN 4.6+git20120811-4/build-aux/ar-lib 4.6.21+20171216ss6cdfd-1/build-aux/ar-lib
--- 4.6+git20120811-4/build-aux/ar-lib	1970-01-01 00:00:00.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/ar-lib	2017-12-17 00:27:14.000000000 +0000
@@ -0,0 +1,270 @@
+#! /bin/sh
+# Wrapper for Microsoft lib.exe
+
+me=ar-lib
+scriptversion=2012-03-01.08; # UTC
+
+# Copyright (C) 2010-2017 Free Software Foundation, Inc.
+# Written by Peter Rosin <peda@lysator.liu.se>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+
+# func_error message
+func_error ()
+{
+  echo "$me: $1" 1>&2
+  exit 1
+}
+
+file_conv=
+
+# func_file_conv build_file
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv in
+	mingw)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_at_file at_file operation archive
+# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE
+# for each of them.
+# When interpreting the content of the @FILE, do NOT use func_file_conv,
+# since the user would need to supply preconverted file names to
+# binutils ar, at least for MinGW.
+func_at_file ()
+{
+  operation=$2
+  archive=$3
+  at_file_contents=`cat "$1"`
+  eval set x "$at_file_contents"
+  shift
+
+  for member
+  do
+    $AR -NOLOGO $operation:"$member" "$archive" || exit $?
+  done
+}
+
+case $1 in
+  '')
+     func_error "no command.  Try '$0 --help' for more information."
+     ;;
+  -h | --h*)
+    cat <<EOF
+Usage: $me [--help] [--version] PROGRAM ACTION ARCHIVE [MEMBER...]
+
+Members may be specified in a file named with @FILE.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "$me, version $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test $# -lt 3; then
+  func_error "you must specify a program, an action and an archive"
+fi
+
+AR=$1
+shift
+while :
+do
+  if test $# -lt 2; then
+    func_error "you must specify a program, an action and an archive"
+  fi
+  case $1 in
+    -lib | -LIB \
+    | -ltcg | -LTCG \
+    | -machine* | -MACHINE* \
+    | -subsystem* | -SUBSYSTEM* \
+    | -verbose | -VERBOSE \
+    | -wx* | -WX* )
+      AR="$AR $1"
+      shift
+      ;;
+    *)
+      action=$1
+      shift
+      break
+      ;;
+  esac
+done
+orig_archive=$1
+shift
+func_file_conv "$orig_archive"
+archive=$file
+
+# strip leading dash in $action
+action=${action#-}
+
+delete=
+extract=
+list=
+quick=
+replace=
+index=
+create=
+
+while test -n "$action"
+do
+  case $action in
+    d*) delete=yes  ;;
+    x*) extract=yes ;;
+    t*) list=yes    ;;
+    q*) quick=yes   ;;
+    r*) replace=yes ;;
+    s*) index=yes   ;;
+    S*)             ;; # the index is always updated implicitly
+    c*) create=yes  ;;
+    u*)             ;; # TODO: don't ignore the update modifier
+    v*)             ;; # TODO: don't ignore the verbose modifier
+    *)
+      func_error "unknown action specified"
+      ;;
+  esac
+  action=${action#?}
+done
+
+case $delete$extract$list$quick$replace,$index in
+  yes,* | ,yes)
+    ;;
+  yesyes*)
+    func_error "more than one action specified"
+    ;;
+  *)
+    func_error "no action specified"
+    ;;
+esac
+
+if test -n "$delete"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  for member
+  do
+    case $1 in
+      @*)
+        func_at_file "${1#@}" -REMOVE "$archive"
+        ;;
+      *)
+        func_file_conv "$1"
+        $AR -NOLOGO -REMOVE:"$file" "$archive" || exit $?
+        ;;
+    esac
+  done
+
+elif test -n "$extract"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  if test $# -gt 0; then
+    for member
+    do
+      case $1 in
+        @*)
+          func_at_file "${1#@}" -EXTRACT "$archive"
+          ;;
+        *)
+          func_file_conv "$1"
+          $AR -NOLOGO -EXTRACT:"$file" "$archive" || exit $?
+          ;;
+      esac
+    done
+  else
+    $AR -NOLOGO -LIST "$archive" | sed -e 's/\\/\\\\/g' | while read member
+    do
+      $AR -NOLOGO -EXTRACT:"$member" "$archive" || exit $?
+    done
+  fi
+
+elif test -n "$quick$replace"; then
+  if test ! -f "$orig_archive"; then
+    if test -z "$create"; then
+      echo "$me: creating $orig_archive"
+    fi
+    orig_archive=
+  else
+    orig_archive=$archive
+  fi
+
+  for member
+  do
+    case $1 in
+    @*)
+      func_file_conv "${1#@}"
+      set x "$@" "@$file"
+      ;;
+    *)
+      func_file_conv "$1"
+      set x "$@" "$file"
+      ;;
+    esac
+    shift
+    shift
+  done
+
+  if test -n "$orig_archive"; then
+    $AR -NOLOGO -OUT:"$archive" "$orig_archive" "$@" || exit $?
+  else
+    $AR -NOLOGO -OUT:"$archive" "$@" || exit $?
+  fi
+
+elif test -n "$list"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  $AR -NOLOGO -LIST "$archive" || exit $?
+fi
diff -pruN 4.6+git20120811-4/build-aux/compile 4.6.21+20171216ss6cdfd-1/build-aux/compile
--- 4.6+git20120811-4/build-aux/compile	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/compile	2017-12-17 00:27:14.000000000 +0000
@@ -1,10 +1,9 @@
 #! /bin/sh
-# Wrapper for compilers which do not understand `-c -o'.
+# Wrapper for compilers which do not understand '-c -o'.
 
-scriptversion=2010-11-15.09; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2009, 2010 Free Software
-# Foundation, Inc.
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
 # This program is free software; you can redistribute it and/or modify
@@ -40,7 +39,7 @@ file_conv=
 
 # func_file_conv build_file lazy
 # Convert a $build file to $host form and store it in $file
-# Currently only supports Win32 hosts. If the determined conversion
+# Currently only supports Windows hosts. If the determined conversion
 # type is listed in (the comma separated) LAZY, no conversion will
 # take place.
 func_file_conv ()
@@ -79,6 +78,53 @@ func_file_conv ()
   esac
 }
 
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
 # func_cl_wrapper cl arg...
 # Adjust compile command to suit cl
 func_cl_wrapper ()
@@ -94,7 +140,7 @@ func_cl_wrapper ()
     else
       case $1 in
 	-o)
-	  # configure might choose to run compile as `compile cc -o foo foo.c'.
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
 	  eat=1
 	  case $2 in
 	    *.o | *.[oO][bB][jJ])
@@ -109,43 +155,34 @@ func_cl_wrapper ()
 	      ;;
 	  esac
 	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
 	-I*)
 	  func_file_conv "${1#-I}" mingw
 	  set x "$@" -I"$file"
 	  shift
 	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
 	-l*)
-	  lib=${1#-l}
-	  found=no
-	  save_IFS=$IFS
-	  IFS=';'
-	  for dir in $lib_path $LIB
-	  do
-	    IFS=$save_IFS
-	    if $shared && test -f "$dir/$lib.dll.lib"; then
-	      found=yes
-	      set x "$@" "$dir/$lib.dll.lib"
-	      break
-	    fi
-	    if test -f "$dir/$lib.lib"; then
-	      found=yes
-	      set x "$@" "$dir/$lib.lib"
-	      break
-	    fi
-	  done
-	  IFS=$save_IFS
-
-	  test "$found" != yes && set x "$@" "$lib.lib"
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
 	  shift
 	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
 	-L*)
-	  func_file_conv "${1#-L}"
-	  if test -z "$lib_path"; then
-	    lib_path=$file
-	  else
-	    lib_path="$lib_path;$file"
-	  fi
-	  linker_opts="$linker_opts -LIBPATH:$file"
+	  func_cl_dashL "${1#-L}"
 	  ;;
 	-static)
 	  shared=false
@@ -196,19 +233,19 @@ eat=
 
 case $1 in
   '')
-     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
      exit 1;
      ;;
   -h | --h*)
     cat <<\EOF
 Usage: compile [--help] [--version] PROGRAM [ARGS]
 
-Wrapper for compilers which do not understand `-c -o'.
-Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
 arguments, and rename the output as expected.
 
 If you are trying to build a whole package this is not the
-right script to run: please start by reading the file `INSTALL'.
+right script to run: please start by reading the file 'INSTALL'.
 
 Report bugs to <bug-automake@gnu.org>.
 EOF
@@ -218,7 +255,8 @@ EOF
     echo "compile $scriptversion"
     exit $?
     ;;
-  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
     func_cl_wrapper "$@"      # Doesn't return...
     ;;
 esac
@@ -233,8 +271,8 @@ do
   else
     case $1 in
       -o)
-	# configure might choose to run compile as `compile cc -o foo foo.c'.
-	# So we strip `-o arg' only if arg is an object.
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
 	eat=1
 	case $2 in
 	  *.o | *.obj)
@@ -261,10 +299,10 @@ do
 done
 
 if test -z "$ofile" || test -z "$cfile"; then
-  # If no `-o' option was seen then we might have been invoked from a
+  # If no '-o' option was seen then we might have been invoked from a
   # pattern rule where we don't need one.  That is ok -- this is a
   # normal compilation that the losing compiler can handle.  If no
-  # `.c' file was seen then we are probably linking.  That is also
+  # '.c' file was seen then we are probably linking.  That is also
   # ok.
   exec "$@"
 fi
@@ -273,7 +311,7 @@ fi
 cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
 
 # Create the lock directory.
-# Note: use `[/\\:.-]' here to ensure that we don't use the same name
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
 # that we are using for the .o file.  Also, base the name on the expected
 # object file name, since that is what matters with a parallel build.
 lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
@@ -305,6 +343,6 @@ exit $ret
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/config.guess 4.6.21+20171216ss6cdfd-1/build-aux/config.guess
--- 4.6+git20120811-4/build-aux/config.guess	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/config.guess	2017-01-20 07:05:41.000000000 +0000
@@ -1,14 +1,12 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011, 2012 Free Software Foundation, Inc.
+#   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2012-01-01'
+timestamp='2017-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
@@ -17,26 +15,22 @@ timestamp='2012-01-01'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Originally written by Per Bothner.  Please send patches (context
-# diff format) to <config-patches@gnu.org> and include a ChangeLog
-# entry.
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
 #
-# This script attempts to guess a canonical system name similar to
-# config.sub.  If it succeeds, it prints the system name on stdout, and
-# exits with 0.  Otherwise, it exits with 1.
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+#
+# Please send patches to <config-patches@gnu.org>.
+
 
 me=`echo "$0" | sed -e 's,.*/,,'`
 
@@ -56,9 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
-Free Software Foundation, Inc.
+Copyright 1992-2017 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -140,6 +132,27 @@ UNAME_RELEASE=`(uname -r) 2>/dev/null` |
 UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
 UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+	;;
+esac
+
 # Note: order is significant - the case branches are not exclusive.
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
@@ -155,19 +168,29 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 	# Note: NetBSD doesn't particularly care about the vendor
 	# portion of the name.  We always set it to "unknown".
 	sysctl="sysctl -n hw.machine_arch"
-	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
-	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    /sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || \
+	    echo unknown)`
 	case "${UNAME_MACHINE_ARCH}" in
 	    armeb) machine=armeb-unknown ;;
 	    arm*) machine=arm-unknown ;;
 	    sh3el) machine=shl-unknown ;;
 	    sh3eb) machine=sh-unknown ;;
 	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo ${UNAME_MACHINE_ARCH} | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo ${UNAME_MACHINE_ARCH} | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine=${arch}${endian}-unknown
+		;;
 	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
 	esac
 	# The Operating System including object format, if it has switched
-	# to ELF recently, or will in the future.
+	# to ELF recently (or will in the future) and ABI.
 	case "${UNAME_MACHINE_ARCH}" in
+	    earm*)
+		os=netbsdelf
+		;;
 	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
@@ -184,6 +207,13 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 		os=netbsd
 		;;
 	esac
+	# Determine ABI tags.
+	case "${UNAME_MACHINE_ARCH}" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo ${UNAME_MACHINE_ARCH} | sed -e "$expr"`
+		;;
+	esac
 	# The OS release
 	# Debian GNU/NetBSD machines have a different userland, and
 	# thus, need a distinct triplet. However, they do not need
@@ -194,18 +224,26 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 		release='-gnu'
 		;;
 	    *)
-		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+		release=`echo ${UNAME_RELEASE} | sed -e 's/[-_].*//' | cut -d. -f1,2`
 		;;
 	esac
 	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
 	# contains redundant information, the shorter form:
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
-	echo "${machine}-${os}${release}"
+	echo "${machine}-${os}${release}${abi}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
 	exit ;;
     *:OpenBSD:*:*)
 	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
 	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
 	exit ;;
+    *:LibertyBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-libertybsd${UNAME_RELEASE}
+	exit ;;
     *:ekkoBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
 	exit ;;
@@ -218,6 +256,9 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
     *:MirBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
 	exit ;;
+    *:Sortix:*:*)
+	echo ${UNAME_MACHINE}-unknown-sortix
+	exit ;;
     alpha:OSF1:*:*)
 	case $UNAME_RELEASE in
 	*4.0)
@@ -234,42 +275,42 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
 	case "$ALPHA_CPU_TYPE" in
 	    "EV4 (21064)")
-		UNAME_MACHINE="alpha" ;;
+		UNAME_MACHINE=alpha ;;
 	    "EV4.5 (21064)")
-		UNAME_MACHINE="alpha" ;;
+		UNAME_MACHINE=alpha ;;
 	    "LCA4 (21066/21068)")
-		UNAME_MACHINE="alpha" ;;
+		UNAME_MACHINE=alpha ;;
 	    "EV5 (21164)")
-		UNAME_MACHINE="alphaev5" ;;
+		UNAME_MACHINE=alphaev5 ;;
 	    "EV5.6 (21164A)")
-		UNAME_MACHINE="alphaev56" ;;
+		UNAME_MACHINE=alphaev56 ;;
 	    "EV5.6 (21164PC)")
-		UNAME_MACHINE="alphapca56" ;;
+		UNAME_MACHINE=alphapca56 ;;
 	    "EV5.7 (21164PC)")
-		UNAME_MACHINE="alphapca57" ;;
+		UNAME_MACHINE=alphapca57 ;;
 	    "EV6 (21264)")
-		UNAME_MACHINE="alphaev6" ;;
+		UNAME_MACHINE=alphaev6 ;;
 	    "EV6.7 (21264A)")
-		UNAME_MACHINE="alphaev67" ;;
+		UNAME_MACHINE=alphaev67 ;;
 	    "EV6.8CB (21264C)")
-		UNAME_MACHINE="alphaev68" ;;
+		UNAME_MACHINE=alphaev68 ;;
 	    "EV6.8AL (21264B)")
-		UNAME_MACHINE="alphaev68" ;;
+		UNAME_MACHINE=alphaev68 ;;
 	    "EV6.8CX (21264D)")
-		UNAME_MACHINE="alphaev68" ;;
+		UNAME_MACHINE=alphaev68 ;;
 	    "EV6.9A (21264/EV69A)")
-		UNAME_MACHINE="alphaev69" ;;
+		UNAME_MACHINE=alphaev69 ;;
 	    "EV7 (21364)")
-		UNAME_MACHINE="alphaev7" ;;
+		UNAME_MACHINE=alphaev7 ;;
 	    "EV7.9 (21364A)")
-		UNAME_MACHINE="alphaev79" ;;
+		UNAME_MACHINE=alphaev79 ;;
 	esac
 	# A Pn.n version is a patched version.
 	# A Vn.n version is a released version.
 	# A Tn.n version is a released field test version.
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
-	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
 	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
 	exitcode=$?
 	trap '' 0
@@ -304,7 +345,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
 	exit ;;
-    arm:riscos:*:*|arm:RISCOS:*:*)
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
 	echo arm-unknown-riscos
 	exit ;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
@@ -342,16 +383,16 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 	exit ;;
     i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
 	eval $set_cc_for_build
-	SUN_ARCH="i386"
+	SUN_ARCH=i386
 	# If there is a compiler, see if it is configured for 64-bit objects.
 	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
 	# This test works for both compilers.
-	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
 	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
-		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
 		grep IS_64BIT_ARCH >/dev/null
 	    then
-		SUN_ARCH="x86_64"
+		SUN_ARCH=x86_64
 	    fi
 	fi
 	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
@@ -376,7 +417,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:$
 	exit ;;
     sun*:*:4.2BSD:*)
 	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
-	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	test "x${UNAME_RELEASE}" = x && UNAME_RELEASE=3
 	case "`/bin/arch`" in
 	    sun3)
 		echo m68k-sun-sunos${UNAME_RELEASE}
@@ -562,8 +603,9 @@ EOF
 	else
 		IBM_ARCH=powerpc
 	fi
-	if [ -x /usr/bin/oslevel ] ; then
-		IBM_REV=`/usr/bin/oslevel`
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
 	else
 		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
@@ -600,13 +642,13 @@ EOF
 		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
 		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
 		    case "${sc_cpu_version}" in
-		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
-		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
 		      532)                      # CPU_PA_RISC2_0
 			case "${sc_kernel_bits}" in
-			  32) HP_ARCH="hppa2.0n" ;;
-			  64) HP_ARCH="hppa2.0w" ;;
-			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+			  32) HP_ARCH=hppa2.0n ;;
+			  64) HP_ARCH=hppa2.0w ;;
+			  '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
 			esac ;;
 		    esac
 		fi
@@ -645,11 +687,11 @@ EOF
 		    exit (0);
 		}
 EOF
-		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    (CCOPTS="" $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
 		    test -z "$HP_ARCH" && HP_ARCH=hppa
 		fi ;;
 	esac
-	if [ ${HP_ARCH} = "hppa2.0w" ]
+	if [ ${HP_ARCH} = hppa2.0w ]
 	then
 	    eval $set_cc_for_build
 
@@ -662,12 +704,12 @@ EOF
 	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
 	    # => hppa64-hp-hpux11.23
 
-	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
 		grep -q __LP64__
 	    then
-		HP_ARCH="hppa2.0w"
+		HP_ARCH=hppa2.0w
 	    else
-		HP_ARCH="hppa64"
+		HP_ARCH=hppa64
 	    fi
 	fi
 	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
@@ -772,14 +814,14 @@ EOF
 	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
 	exit ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
-	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
 	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
 	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
 	exit ;;
     5000:UNIX_System_V:4.*:*)
-	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
 	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
 	exit ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
@@ -803,10 +845,13 @@ EOF
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
 	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
-    i*:MSYS*:*)
+    *:MSYS*:*)
 	echo ${UNAME_MACHINE}-pc-msys
 	exit ;;
     i*:windows32*:*)
@@ -854,15 +899,22 @@ EOF
 	exit ;;
     *:GNU:*:*)
 	# the GNU system
-	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit ;;
     *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
 	exit ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
 	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
 	  EV5)   UNAME_MACHINE=alphaev5 ;;
@@ -874,59 +926,60 @@ EOF
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
 	esac
 	objdump --private-headers /bin/sh | grep -q ld.so.1
-	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
-	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     arm*:Linux:*:*)
 	eval $set_cc_for_build
 	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
 	    | grep -q __ARM_EABI__
 	then
-	    echo ${UNAME_MACHINE}-unknown-linux-gnu
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	else
 	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
 		| grep -q __ARM_PCS_VFP
 	    then
-		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
 	    else
-		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
 	    fi
 	fi
 	exit ;;
     avr32*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     cris:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-gnu
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
 	exit ;;
     crisv32:Linux:*:*)
-	echo ${UNAME_MACHINE}-axis-linux-gnu
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    e2k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     frv:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     hexagon:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     i*86:Linux:*:*)
-	LIBC=gnu
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#ifdef __dietlibc__
-	LIBC=dietlibc
-	#endif
-EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
-	echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
 	exit ;;
     ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    k1om:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     m68*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     mips:Linux:*:* | mips64:Linux:*:*)
 	eval $set_cc_for_build
@@ -945,54 +998,69 @@ EOF
 	#endif
 EOF
 	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
 	;;
-    or32:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+    mips64el:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-${LIBC}
+	exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     padre:Linux:*:*)
-	echo sparc-unknown-linux-gnu
+	echo sparc-unknown-linux-${LIBC}
 	exit ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
-	echo hppa64-unknown-linux-gnu
+	echo hppa64-unknown-linux-${LIBC}
 	exit ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
-	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
-	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
-	  *)    echo hppa-unknown-linux-gnu ;;
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
 	esac
 	exit ;;
     ppc64:Linux:*:*)
-	echo powerpc64-unknown-linux-gnu
+	echo powerpc64-unknown-linux-${LIBC}
 	exit ;;
     ppc:Linux:*:*)
-	echo powerpc-unknown-linux-gnu
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-${LIBC}
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-${LIBC}
+	exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
-	echo ${UNAME_MACHINE}-ibm-linux
+	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
 	exit ;;
     sh64*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sh*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     tile*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     vax:Linux:*:*)
-	echo ${UNAME_MACHINE}-dec-linux-gnu
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
 	exit ;;
     x86_64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
 	exit ;;
     xtensa*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
 	exit ;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -1068,7 +1136,7 @@ EOF
 	# uname -m prints for DJGPP always 'pc', but it prints nothing about
 	# the processor, so we play safe by assuming i586.
 	# Note: whatever this is, it MUST be the same as what config.sub
-	# prints for the "djgpp" host, or else GDB configury will decide that
+	# prints for the "djgpp" host, or else GDB configure will decide that
 	# this is a cross-build.
 	echo i586-pc-msdosdjgpp
 	exit ;;
@@ -1196,6 +1264,9 @@ EOF
     BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
 	echo i586-pc-haiku
 	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
     SX-4:SUPER-UX:*:*)
 	echo sx4-nec-superux${UNAME_RELEASE}
 	exit ;;
@@ -1214,6 +1285,9 @@ EOF
     SX-8R:SUPER-UX:*:*)
 	echo sx8r-nec-superux${UNAME_RELEASE}
 	exit ;;
+    SX-ACE:SUPER-UX:*:*)
+	echo sxace-nec-superux${UNAME_RELEASE}
+	exit ;;
     Power*:Rhapsody:*:*)
 	echo powerpc-apple-rhapsody${UNAME_RELEASE}
 	exit ;;
@@ -1222,24 +1296,36 @@ EOF
 	exit ;;
     *:Darwin:*:*)
 	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-	case $UNAME_PROCESSOR in
-	    i386)
-		eval $set_cc_for_build
-		if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
-		  if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-		      (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
-		      grep IS_64BIT_ARCH >/dev/null
-		  then
-		      UNAME_PROCESSOR="x86_64"
-		  fi
-		fi ;;
-	    unknown) UNAME_PROCESSOR=powerpc ;;
-	esac
+	eval $set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		    (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		    grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
 	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
 	exit ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
 	UNAME_PROCESSOR=`uname -p`
-	if test "$UNAME_PROCESSOR" = "x86"; then
+	if test "$UNAME_PROCESSOR" = x86; then
 		UNAME_PROCESSOR=i386
 		UNAME_MACHINE=pc
 	fi
@@ -1251,7 +1337,7 @@ EOF
     NEO-?:NONSTOP_KERNEL:*:*)
 	echo neo-tandem-nsk${UNAME_RELEASE}
 	exit ;;
-    NSE-?:NONSTOP_KERNEL:*:*)
+    NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     NSR-?:NONSTOP_KERNEL:*:*)
@@ -1270,7 +1356,7 @@ EOF
 	# "uname -m" is not consistent, so use $cputype instead. 386
 	# is converted to i386 for consistency with other x86
 	# operating systems.
-	if test "$cputype" = "386"; then
+	if test "$cputype" = 386; then
 	    UNAME_MACHINE=i386
 	else
 	    UNAME_MACHINE="$cputype"
@@ -1312,7 +1398,7 @@ EOF
 	echo i386-pc-xenix
 	exit ;;
     i*86:skyos:*:*)
-	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE} | sed -e 's/ .*$//'`
 	exit ;;
     i*86:rdos:*:*)
 	echo ${UNAME_MACHINE}-pc-rdos
@@ -1320,174 +1406,28 @@ EOF
     i*86:AROS:*:*)
 	echo ${UNAME_MACHINE}-pc-aros
 	exit ;;
-esac
-
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
-  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
-     I don't know....  */
-  printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
-  printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
-	"4"
-#else
-	""
-#endif
-	); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
-  printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
-  printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
-  int version;
-  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
-  if (version < 4)
-    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
-  else
-    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
-  exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
-  printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
-  printf ("ns32k-encore-mach\n"); exit (0);
-#else
-  printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
-  printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
-  printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
-  printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
-    struct utsname un;
-
-    uname(&un);
-
-    if (strncmp(un.version, "V2", 2) == 0) {
-	printf ("i386-sequent-ptx2\n"); exit (0);
-    }
-    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
-	printf ("i386-sequent-ptx1\n"); exit (0);
-    }
-    printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-#  include <sys/param.h>
-#  if defined (BSD)
-#   if BSD == 43
-      printf ("vax-dec-bsd4.3\n"); exit (0);
-#   else
-#    if BSD == 199006
-      printf ("vax-dec-bsd4.3reno\n"); exit (0);
-#    else
-      printf ("vax-dec-bsd\n"); exit (0);
-#    endif
-#   endif
-#  else
-    printf ("vax-dec-bsd\n"); exit (0);
-#  endif
-# else
-    printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
-  printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
-  exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
-	{ echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
-    case `getsysinfo -f cpu_type` in
-    c1*)
-	echo c1-convex-bsd
-	exit ;;
-    c2*)
-	if getsysinfo -f scalar_acc
-	then echo c32-convex-bsd
-	else echo c2-convex-bsd
-	fi
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
 	exit ;;
-    c34*)
-	echo c34-convex-bsd
+    amd64:Isilon\ OneFS:*:*)
+	echo x86_64-unknown-onefs
 	exit ;;
-    c38*)
-	echo c38-convex-bsd
-	exit ;;
-    c4*)
-	echo c4-convex-bsd
-	exit ;;
-    esac
-fi
+esac
 
 cat >&2 <<EOF
 $0: unable to guess system type
 
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite
+config.guess and config.sub with the latest versions from:
 
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
-If the version you run ($0) is already up to date, please
-send the following data and any information you think might be
-pertinent to <config-patches@gnu.org> in order to provide the needed
-information to handle your system.
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
 
 config.guess timestamp = $timestamp
 
diff -pruN 4.6+git20120811-4/build-aux/config.rpath 4.6.21+20171216ss6cdfd-1/build-aux/config.rpath
--- 4.6+git20120811-4/build-aux/config.rpath	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/config.rpath	2017-01-20 07:05:41.000000000 +0000
@@ -2,7 +2,7 @@
 # Output a system dependent set of variables, describing how to set the
 # run time search path of shared libraries in an executable.
 #
-#   Copyright 1996-2012 Free Software Foundation, Inc.
+#   Copyright 1996-2017 Free Software Foundation, Inc.
 #   Taken from GNU libtool, 2001
 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #
@@ -367,11 +367,7 @@ else
     dgux*)
       hardcode_libdir_flag_spec='-L$libdir'
       ;;
-    freebsd2.2*)
-      hardcode_libdir_flag_spec='-R$libdir'
-      hardcode_direct=yes
-      ;;
-    freebsd2*)
+    freebsd2.[01]*)
       hardcode_direct=yes
       hardcode_minus_L=yes
       ;;
@@ -548,13 +544,11 @@ case "$host_os" in
   dgux*)
     library_names_spec='$libname$shrext'
     ;;
+  freebsd[23].*)
+    library_names_spec='$libname$shrext$versuffix'
+    ;;
   freebsd* | dragonfly*)
-    case "$host_os" in
-      freebsd[123]*)
-        library_names_spec='$libname$shrext$versuffix' ;;
-      *)
-        library_names_spec='$libname$shrext' ;;
-    esac
+    library_names_spec='$libname$shrext'
     ;;
   gnu*)
     library_names_spec='$libname$shrext'
diff -pruN 4.6+git20120811-4/build-aux/config.sub 4.6.21+20171216ss6cdfd-1/build-aux/config.sub
--- 4.6+git20120811-4/build-aux/config.sub	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/config.sub	2017-01-20 07:05:41.000000000 +0000
@@ -1,38 +1,31 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-#   2011, 2012 Free Software Foundation, Inc.
-
-timestamp='2012-01-01'
-
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine.  It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+#   Copyright 1992-2017 Free Software Foundation, Inc.
+
+timestamp='2017-01-01'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted GNU ChangeLog entry.
+# Please send patches to <config-patches@gnu.org>.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
@@ -40,7 +33,7 @@ timestamp='2012-01-01'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
@@ -60,8 +53,7 @@ timestamp='2012-01-01'
 me=`echo "$0" | sed -e 's,.*/,,'`
 
 usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS
-       $0 [OPTION] ALIAS
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
 
 Canonicalize a configuration name.
 
@@ -75,9 +67,7 @@ Report bugs and patches to <config-patch
 version="\
 GNU config.sub ($timestamp)
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
-Free Software Foundation, Inc.
+Copyright 1992-2017 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -125,13 +115,17 @@ esac
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | \
-  kopensolaris*-gnu* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
+  kopensolaris*-gnu* | cloudabi*-eabi* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
   *)
     basic_machine=`echo $1 | sed 's/-[^-]*$//'`
     if [ $basic_machine != $1 ]
@@ -154,7 +148,7 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray | -microblaze)
+	-apple | -axis | -knuth | -cray | -microblaze*)
 		os=
 		basic_machine=$1
 		;;
@@ -223,6 +217,12 @@ case $os in
 	-isc*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
 	-lynx*)
 		os=-lynxos
 		;;
@@ -247,24 +247,29 @@ case $basic_machine in
 	# Some are omitted here because they have special meanings below.
 	1750a | 580 \
 	| a29k \
+	| aarch64 | aarch64_be \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
-        | be32 | be64 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| ba \
+	| be32 | be64 \
 	| bfin \
-	| c4x | clipper \
+	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| epiphany \
-	| fido | fr30 | frv \
+	| e2k | epiphany \
+	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
+	| k1om \
 	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | mcore | mep | metag \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
@@ -278,26 +283,30 @@ case $basic_machine in
 	| mips64vr5900 | mips64vr5900el \
 	| mipsisa32 | mipsisa32el \
 	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
 	| mipsisa64 | mipsisa64el \
 	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
 	| mipstx39 | mipstx39el \
 	| mn10200 | mn10300 \
 	| moxie \
 	| mt \
 	| msp430 \
 	| nds32 | nds32le | nds32be \
-	| nios | nios2 \
+	| nios | nios2 | nios2eb | nios2el \
 	| ns16k | ns32k \
-	| open8 \
-	| or32 \
+	| open8 | or1k | or1knd | or32 \
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pru \
 	| pyramid \
+	| riscv32 | riscv64 \
 	| rl78 | rx \
 	| score \
-	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
@@ -305,6 +314,7 @@ case $basic_machine in
 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
 	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
 	| we32k \
 	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
@@ -319,7 +329,10 @@ case $basic_machine in
 	c6x)
 		basic_machine=tic6x-unknown
 		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | picochip)
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -332,7 +345,10 @@ case $basic_machine in
 	strongarm | thumb | xscale)
 		basic_machine=arm-unknown
 		;;
-
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
 	xscaleeb)
 		basic_machine=armeb-unknown
 		;;
@@ -355,28 +371,32 @@ case $basic_machine in
 	# Recognize the basic CPU types with company name.
 	580-* \
 	| a29k-* \
+	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
+	| ba-* \
 	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
-	| clipper-* | craynv-* | cydra-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
-	| elxsi-* \
+	| e2k-* | elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| k1om-* \
 	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
@@ -390,28 +410,34 @@ case $basic_machine in
 	| mips64vr5900-* | mips64vr5900el-* \
 	| mipsisa32-* | mipsisa32el-* \
 	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
 	| mipsisa64-* | mipsisa64el-* \
 	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
 	| mipstx39-* | mipstx39el-* \
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
 	| nds32-* | nds32le-* | nds32be-* \
-	| nios-* | nios2-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
 	| open8-* \
+	| or1k*-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pru-* \
 	| pyramid-* \
+	| riscv32-* | riscv64-* \
 	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
 	| tahoe-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
 	| tile*-* \
@@ -419,6 +445,7 @@ case $basic_machine in
 	| ubicom32-* \
 	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
 	| vax-* \
+	| visium-* \
 	| we32k-* \
 	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
@@ -495,6 +522,9 @@ case $basic_machine in
 		basic_machine=i386-pc
 		os=-aros
 		;;
+	asmjs)
+		basic_machine=asmjs-unknown
+		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -615,6 +645,14 @@ case $basic_machine in
 		basic_machine=m68k-bull
 		os=-sysv3
 		;;
+	e500v[12])
+		basic_machine=powerpc-unknown
+		os=$os"spe"
+		;;
+	e500v[12]-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=$os"spe"
+		;;
 	ebmon29k)
 		basic_machine=a29k-amd
 		os=-ebmon
@@ -756,6 +794,9 @@ case $basic_machine in
 		basic_machine=m68k-isi
 		os=-sysv
 		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+		;;
 	m68knommu)
 		basic_machine=m68k-unknown
 		os=-linux
@@ -775,11 +816,15 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
-	microblaze)
+	microblaze*)
 		basic_machine=microblaze-xilinx
 		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
 	mingw32)
-		basic_machine=i386-pc
+		basic_machine=i686-pc
 		os=-mingw32
 		;;
 	mingw32ce)
@@ -807,6 +852,10 @@ case $basic_machine in
 		basic_machine=powerpc-unknown
 		os=-morphos
 		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
 	msdos)
 		basic_machine=i386-pc
 		os=-msdos
@@ -815,7 +864,7 @@ case $basic_machine in
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
 	msys)
-		basic_machine=i386-pc
+		basic_machine=i686-pc
 		os=-msys
 		;;
 	mvs)
@@ -983,7 +1032,7 @@ case $basic_machine in
 	ppc-* | ppcbe-*)
 		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	ppcle | powerpclittle | ppc-le | powerpc-little)
+	ppcle | powerpclittle)
 		basic_machine=powerpcle-unknown
 		;;
 	ppcle-* | powerpclittle-*)
@@ -993,7 +1042,7 @@ case $basic_machine in
 		;;
 	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+	ppc64le | powerpc64little)
 		basic_machine=powerpc64le-unknown
 		;;
 	ppc64le-* | powerpc64little-*)
@@ -1006,7 +1055,11 @@ case $basic_machine in
 		basic_machine=i586-unknown
 		os=-pw32
 		;;
-	rdos)
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
 		basic_machine=i386-pc
 		os=-rdos
 		;;
@@ -1333,29 +1386,30 @@ case $os in
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
-	      | -sym* | -kopensolaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* \
+	      | -aos* | -aros* | -cloudabi* | -sortix* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -openbsd* | -solidbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-android* \
-	      | -linux-newlib* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1479,9 +1533,6 @@ case $os in
 	-aros*)
 		os=-aros
 		;;
-	-kaos*)
-		os=-kaos
-		;;
 	-zvmoe)
 		os=-zvmoe
 		;;
@@ -1490,6 +1541,8 @@ case $os in
 		;;
 	-nacl*)
 		;;
+	-ios)
+		;;
 	-none)
 		;;
 	*)
@@ -1530,6 +1583,12 @@ case $basic_machine in
 	c4x-* | tic4x-*)
 		os=-coff
 		;;
+	c8051-*)
+		os=-elf
+		;;
+	hexagon-*)
+		os=-elf
+		;;
 	tic54x-*)
 		os=-coff
 		;;
@@ -1579,6 +1638,9 @@ case $basic_machine in
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	pru-*)
+		os=-elf
+		;;
 	*-be)
 		os=-beos
 		;;
diff -pruN 4.6+git20120811-4/build-aux/depcomp 4.6.21+20171216ss6cdfd-1/build-aux/depcomp
--- 4.6+git20120811-4/build-aux/depcomp	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/depcomp	2017-01-20 07:05:41.000000000 +0000
@@ -1,10 +1,9 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2011-12-04.11; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
-# 2011 Free Software Foundation, Inc.
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,9 +27,9 @@ scriptversion=2011-12-04.11; # UTC
 
 case $1 in
   '')
-     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
   -h | --h*)
     cat <<\EOF
 Usage: depcomp [--help] [--version] PROGRAM [ARGS]
@@ -57,6 +56,66 @@ EOF
     ;;
 esac
 
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   echo "depcomp: Variables source, object and depmode must be set" 1>&2
   exit 1
@@ -69,6 +128,9 @@ tmpdepfile=${tmpdepfile-`echo "$depfile"
 
 rm -f "$tmpdepfile"
 
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
 # Some modes work just like other modes, but use different flags.  We
 # parameterize here, but still list the modes in the big case below,
 # to make depend.m4 easier to write.  Note that we *cannot* use a case
@@ -80,26 +142,32 @@ if test "$depmode" = hp; then
 fi
 
 if test "$depmode" = dashXmstdout; then
-   # This is just like dashmstdout with a different argument.
-   dashmflag=-xM
-   depmode=dashmstdout
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
 fi
 
 cygpath_u="cygpath -u -f -"
 if test "$depmode" = msvcmsys; then
-   # This is just like msvisualcpp but w/o cygpath translation.
-   # Just convert the backslash-escaped backslashes to single forward
-   # slashes to satisfy depend.m4
-   cygpath_u='sed s,\\\\,/,g'
-   depmode=msvisualcpp
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
 fi
 
 if test "$depmode" = msvc7msys; then
-   # This is just like msvc7 but w/o cygpath translation.
-   # Just convert the backslash-escaped backslashes to single forward
-   # slashes to satisfy depend.m4
-   cygpath_u='sed s,\\\\,/,g'
-   depmode=msvc7
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
 fi
 
 case "$depmode" in
@@ -122,8 +190,7 @@ gcc3)
   done
   "$@"
   stat=$?
-  if test $stat -eq 0; then :
-  else
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
     exit $stat
   fi
@@ -131,13 +198,17 @@ gcc3)
   ;;
 
 gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
 ## There are various ways to get dependency output from gcc.  Here's
 ## why we pick this rather obscure method:
 ## - Don't want to use -MD because we'd like the dependencies to end
 ##   up in a subdir.  Having to rename by hand is ugly.
 ##   (We might end up doing this anyway to support other compilers.)
 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
 ## - Using -M directly means running the compiler twice (even worse
 ##   than renaming).
   if test -z "$gccflag"; then
@@ -145,15 +216,14 @@ gcc)
   fi
   "$@" -Wp,"$gccflag$tmpdepfile"
   stat=$?
-  if test $stat -eq 0; then :
-  else
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
     exit $stat
   fi
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
-  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-## The second -e expression handles DOS-style file names with drive letters.
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
   sed -e 's/^[^:]*: / /' \
       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
 ## This next piece of magic avoids the "deleted header file" problem.
@@ -162,16 +232,15 @@ gcc)
 ## typically no way to rebuild the header).  We avoid this by adding
 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 ## this for us directly.
-  tr ' ' '
-' < "$tmpdepfile" |
 ## Some versions of gcc put a space before the ':'.  On the theory
 ## that the space means something, we add a space to the output as
 ## well.  hp depmode also adds that space, but also prefixes the VPATH
 ## to the object.  Take care to not repeat it in the output.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
-      | sed -e 's/$/ :/' >> "$depfile"
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -182,48 +251,11 @@ hp)
   exit 1
   ;;
 
-sgi)
-  if test "$libtool" = yes; then
-    "$@" "-Wp,-MDupdate,$tmpdepfile"
-  else
-    "$@" -MDupdate "$tmpdepfile"
-  fi
-  stat=$?
-  if test $stat -eq 0; then :
-  else
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-
-  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
-    echo "$object : \\" > "$depfile"
-
-    # Clip off the initial element (the dependent).  Don't try to be
-    # clever and replace this with sed code, as IRIX sed won't handle
-    # lines with more than a fixed number of characters (4096 in
-    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like '#:fec' to the end of the
-    # dependency line.
-    tr ' ' '
-' < "$tmpdepfile" \
-    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
-    tr '
-' ' ' >> "$depfile"
-    echo >> "$depfile"
-
-    # The second pass generates a dummy entry for each header file.
-    tr ' ' '
-' < "$tmpdepfile" \
-   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
-   >> "$depfile"
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
-  fi
-  rm -f "$tmpdepfile"
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
   ;;
 
 aix)
@@ -232,9 +264,8 @@ aix)
   # current directory.  Also, the AIX compiler puts '$object:' at the
   # start of each line; $object doesn't have directory information.
   # Version 6 uses the directory in both cases.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-  test "x$dir" = "x$object" && dir=
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  set_dir_from "$object"
+  set_base_from "$object"
   if test "$libtool" = yes; then
     tmpdepfile1=$dir$base.u
     tmpdepfile2=$base.u
@@ -247,9 +278,7 @@ aix)
     "$@" -M
   fi
   stat=$?
-
-  if test $stat -eq 0; then :
-  else
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
     exit $stat
   fi
@@ -258,57 +287,113 @@ aix)
   do
     test -f "$tmpdepfile" && break
   done
-  if test -f "$tmpdepfile"; then
-    # Each line is of the form 'foo.o: dependent.h'.
-    # Do two passes, one to just change these to
-    # '$object: dependent.h' and one to simply 'dependent.h:'.
-    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-    # That's a tab and a space in the [].
-    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
-  else
-    # The sourcefile does not contain any dependencies, so just
-    # store a dummy comment line, to avoid errors with the Makefile
-    # "include basename.Plo" scheme.
-    echo "#dummy" > "$depfile"
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
   fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
-icc)
-  # Intel's C compiler understands '-MD -MF file'.  However on
-  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
-  # ICC 7.0 will fill foo.d with something like
-  #    foo.o: sub/foo.c
-  #    foo.o: sub/foo.h
-  # which is wrong.  We want:
-  #    sub/foo.o: sub/foo.c
-  #    sub/foo.o: sub/foo.h
-  #    sub/foo.c:
-  #    sub/foo.h:
-  # ICC 7.1 will output
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
   #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using \ :
+  # and will wrap long lines using '\' :
   #    foo.o: sub/foo.c ... \
   #     sub/foo.h ... \
   #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
 
-  "$@" -MD -MF "$tmpdepfile"
-  stat=$?
-  if test $stat -eq 0; then :
-  else
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
     exit $stat
   fi
   rm -f "$depfile"
-  # Each line is of the form 'foo.o: dependent.h',
-  # or 'foo.o: dep1.h dep2.h \', or ' dep3.h dep4.h \'.
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
   # Do two passes, one to just change these to
-  # '$object: dependent.h' and one to simply 'dependent.h:'.
+  # `$object: dependent.h' and one to simply `dependent.h:'.
   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
   # Some versions of the HPUX 10.20 sed can't process this invocation
   # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
-    sed -e 's/$/ :/' >> "$depfile"
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -319,9 +404,8 @@ hp2)
   # 'foo.d', which lands next to the object file, wherever that
   # happens to be.
   # Much of this is similar to the tru64 case; see comments there.
-  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-  test "x$dir" = "x$object" && dir=
-  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  set_dir_from  "$object"
+  set_base_from "$object"
   if test "$libtool" = yes; then
     tmpdepfile1=$dir$base.d
     tmpdepfile2=$dir.libs/$base.d
@@ -332,8 +416,7 @@ hp2)
     "$@" +Maked
   fi
   stat=$?
-  if test $stat -eq 0; then :
-  else
+  if test $stat -ne 0; then
      rm -f "$tmpdepfile1" "$tmpdepfile2"
      exit $stat
   fi
@@ -343,77 +426,61 @@ hp2)
     test -f "$tmpdepfile" && break
   done
   if test -f "$tmpdepfile"; then
-    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
     # Add 'dependent.h:' lines.
     sed -ne '2,${
-	       s/^ *//
-	       s/ \\*$//
-	       s/$/:/
-	       p
-	     }' "$tmpdepfile" >> "$depfile"
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
   else
-    echo "#dummy" > "$depfile"
+    make_dummy_depfile
   fi
   rm -f "$tmpdepfile" "$tmpdepfile2"
   ;;
 
 tru64)
-   # The Tru64 compiler uses -MD to generate dependencies as a side
-   # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
-   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-   # dependencies in 'foo.d' instead, so we check for that too.
-   # Subdirectories are respected.
-   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
-   test "x$dir" = "x$object" && dir=
-   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-
-   if test "$libtool" = yes; then
-      # With Tru64 cc, shared objects can also be used to make a
-      # static library.  This mechanism is used in libtool 1.4 series to
-      # handle both shared and static libraries in a single compilation.
-      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
-      #
-      # With libtool 1.5 this exception was removed, and libtool now
-      # generates 2 separate objects for the 2 libraries.  These two
-      # compilations output dependencies in $dir.libs/$base.o.d and
-      # in $dir$base.o.d.  We have to check for both files, because
-      # one of the two compilations can be disabled.  We should prefer
-      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
-      # automatically cleaned when .libs/ is deleted, while ignoring
-      # the former would cause a distcleancheck panic.
-      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
-      tmpdepfile2=$dir$base.o.d          # libtool 1.5
-      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
-      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
-      "$@" -Wc,-MD
-   else
-      tmpdepfile1=$dir$base.o.d
-      tmpdepfile2=$dir$base.d
-      tmpdepfile3=$dir$base.d
-      tmpdepfile4=$dir$base.d
-      "$@" -MD
-   fi
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
 
-   stat=$?
-   if test $stat -eq 0; then :
-   else
-      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
-      exit $stat
-   fi
-
-   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
-   do
-     test -f "$tmpdepfile" && break
-   done
-   if test -f "$tmpdepfile"; then
-      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
-      # That's a tab and a space in the [].
-      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
-   else
-      echo "#dummy" > "$depfile"
-   fi
-   rm -f "$tmpdepfile"
-   ;;
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
 
 msvc7)
   if test "$libtool" = yes; then
@@ -424,8 +491,7 @@ msvc7)
   "$@" $showIncludes > "$tmpdepfile"
   stat=$?
   grep -v '^Note: including file: ' "$tmpdepfile"
-  if test "$stat" = 0; then :
-  else
+  if test $stat -ne 0; then
     rm -f "$tmpdepfile"
     exit $stat
   fi
@@ -443,14 +509,15 @@ msvc7)
   p
 }' | $cygpath_u | sort -u | sed -n '
 s/ /\\ /g
-s/\(.*\)/	\1 \\/p
+s/\(.*\)/'"$tab"'\1 \\/p
 s/.\(.*\) \\/\1:/
 H
 $ {
-  s/.*/	/
+  s/.*/'"$tab"'/
   G
   p
 }' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
   rm -f "$tmpdepfile"
   ;;
 
@@ -502,14 +569,14 @@ dashmstdout)
   # in the target name.  This is to cope with DOS-style filenames:
   # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
   "$@" $dashmflag |
-    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
   rm -f "$depfile"
   cat < "$tmpdepfile" > "$depfile"
-  tr ' ' '
-' < "$tmpdepfile" | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -562,11 +629,12 @@ makedepend)
   # makedepend may prepend the VPATH from the source file name to the object.
   # No need to regex-escape $object, excess matching of '.' is harmless.
   sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
-  sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile" "$tmpdepfile".bak
   ;;
 
@@ -602,10 +670,10 @@ cpp)
     esac
   done
 
-  "$@" -E |
-    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
-    sed '$ s: \\$::' > "$tmpdepfile"
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
   cat < "$tmpdepfile" >> "$depfile"
@@ -637,23 +705,23 @@ msvisualcpp)
       shift
       ;;
     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
-	set fnord "$@"
-	shift
-	shift
-	;;
+        set fnord "$@"
+        shift
+        shift
+        ;;
     *)
-	set fnord "$@" "$arg"
-	shift
-	shift
-	;;
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
     esac
   done
   "$@" -E 2>/dev/null |
   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
   rm -f "$depfile"
   echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
-  echo "	" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
@@ -683,6 +751,6 @@ exit 0
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/do-release-commit-and-tag 4.6.21+20171216ss6cdfd-1/build-aux/do-release-commit-and-tag
--- 4.6+git20120811-4/build-aux/do-release-commit-and-tag	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/do-release-commit-and-tag	2017-01-20 07:05:41.000000000 +0000
@@ -3,11 +3,11 @@
 # controlled .prev-version file, automate the procedure by which we record
 # the date, release-type and version string in the NEWS file.  That commit
 # will serve to identify the release, so apply a signed tag to it as well.
-VERSION=2011-05-04.11 # UTC
+VERSION=2016-12-31.14 # UTC
 
 # Note: this is a bash script (could be zsh or dash)
 
-# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,31 +24,32 @@ VERSION=2011-05-04.11 # UTC
 
 # Written by Jim Meyering
 
-ME=`basename "$0"`
+ME=$(basename "$0")
 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
 die() { warn "$*"; exit 1; }
 
-help_version()
+help()
 {
-  case $1 in
-    --help) cat <<EOF
+  cat <<EOF
 Usage: $ME [OPTION...] VERSION RELEASE_TYPE
 
-Run this script to perform the final pre-release NEWS update
-in which the date, release-type and version string are recorded.
-Commit that result with a log entry marking the release, and apply
-a signed tag.  Run it from your project's top-level directory.
+Run this script from top_srcdir to perform the final pre-release NEWS
+update in which the date, release-type and version string are
+recorded.  Commit that result with a log entry marking the release,
+and apply a signed tag.  Run it from your project's top-level
+directory.
 
 Requirements:
 - you use git for version-control
-- a NEWS file, with line 3 identical to this:
-* Noteworthy changes in release ?.? (????-??-??) [?]
 - a version-controlled .prev-version file
+- a NEWS file, with line 3 identical to this:
+$noteworthy_stub
 
 Options:
-  --branch BRANCH            set release branch (default: master)
-  --help                     print this help, then exit
-  --version                  print version number, then exit
+  --branch=BRANCH     set release branch (default: $branch)
+  -C, --builddir=DIR  location of (configured) Makefile (default: $builddir)
+  --help              print this help, then exit
+  --version           print version number, then exit
 
 EXAMPLE:
 To update NEWS and tag the beta 8.1 release of coreutils, I would run this:
@@ -57,37 +58,66 @@ To update NEWS and tag the beta 8.1 rele
 
 Report bugs and patches to <bug-gnulib@gnu.org>.
 EOF
-      exit ;;
+  exit
+}
 
-    --version)
-      year=`echo "$VERSION" | sed 's/[^0-9].*//'`
-      cat <<EOF
+version()
+{
+  year=$(echo "$VERSION" | sed 's/[^0-9].*//')
+  cat <<EOF
 $ME $VERSION
 Copyright (C) $year Free Software Foundation, Inc,
 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
 EOF
-      exit ;;
+  exit
+}
 
-  *) die "unrecognized option: $1";;
+## ------ ##
+## Main.  ##
+## ------ ##
+
+# Constants.
+noteworthy='* Noteworthy changes in release'
+noteworthy_stub="$noteworthy ?.? (????-??-??) [?]"
+
+# Variables.
+branch=$(git branch | sed -ne '/^\* /{s///;p;q;}')
+builddir=.
+
+while test $# != 0
+do
+  # Handle --option=value by splitting apart and putting back on argv.
+  case $1 in
+    --*=*)
+      opt=$(echo "$1" | sed -e 's/=.*//')
+      val=$(echo "$1" | sed -e 's/[^=]*=//')
+      shift
+      set dummy "$opt" "$val" "$@"; shift
+      ;;
   esac
-}
 
-branch=master
-case $1 in
-  --branch) shift; branch=$1; shift ;;
-esac
+  case $1 in
+    --help|--version) ${1#--};;
+    --branch) shift; branch=$1; shift ;;
+    -C|--builddir) shift; builddir=$1; shift ;;
+    --*) die "unrecognized option: $1";;
+    *) break;;
+  esac
+done
 
-case $# in
-  1) help_version $1; exit 0;;
-  2) ;;
-  *) warn "Usage: $ME [OPTION...] VERSION TYPE"; exit 1;;
-esac
+test $# = 2 \
+  || die "Usage: $ME [OPTION...] VERSION TYPE"
 
 ver=$1
 type=$2
 
+
+## ---------------------- ##
+## First, sanity checks.  ##
+## ---------------------- ##
+
 # Verify that $ver looks like a version number, and...
 echo "$ver"|grep -E '^[0-9][0-9.]*[0-9]$' > /dev/null \
   || die "invalid version: $ver"
@@ -97,7 +127,7 @@ prev_ver=$(cat .prev-version) \
 # Verify that $ver is sensible (> .prev-version).
 case $(printf "$prev_ver\n$ver\n"|sort -V -u|tr '\n' ':') in
   "$prev_ver:$ver:") ;;
-  *) die "invalid version: $ver";;
+  *) die "invalid version: $ver (<= $prev_ver)";;
 esac
 
 case $type in
@@ -105,32 +135,36 @@ case $type in
   *) die "invalid release type: $type";;
 esac
 
-# Extract package name from Makefile.
-pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' Makefile) \
-  || die 'failed to determine package name from Makefile'
-
-# simple check: no question marks on line 3 of NEWS
-noteworthy='* Noteworthy changes in release'
-test "$(sed -n 3p NEWS)" = "$noteworthy ?.? (????-??-??) [?]" \
-  || die 'line 3 of NEWS looks fishy!'
-
-# No dirt allowed.
+# No local modifications allowed.
 case $(git diff-index --name-only HEAD) in
   '') ;;
   *) die 'this tree is dirty; commit your changes first';;
 esac
 
-# update NEWS to have today's date, plus desired version number and $type
+# Ensure the current branch name is correct:
+curr_br=$(git rev-parse --symbolic-full-name HEAD)
+test "$curr_br" = "refs/heads/$branch" || die not on branch $branch
+
+# Extract package name from Makefile.
+Makefile=$builddir/Makefile
+pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' "$Makefile") \
+  || die "failed to determine package name from $Makefile"
+
+# Check that line 3 of NEWS is the stub line about to be replaced.
+test "$(sed -n 3p NEWS)" = "$noteworthy_stub" \
+  || die "line 3 of NEWS must be exactly '$noteworthy_stub'"
+
+## --------------- ##
+## Then, changes.  ##
+## --------------- ##
+
+# Update NEWS to have today's date, plus desired version number and $type.
 perl -MPOSIX -ni -e 'my $today = strftime "%F", localtime time;' \
  -e 'my ($type, $ver) = qw('"$type $ver"');' \
  -e 'my $pfx = "'"$noteworthy"'";' \
  -e 'print $.==3 ? "$pfx $ver ($today) [$type]\n" : $_' \
      NEWS || die 'failed to update NEWS'
 
-# Ensure the current branch name is correct:
-curr_br=$(git rev-parse --symbolic-full-name HEAD)
-test "$curr_br" = refs/heads/$branch || die not on branch $branch
-
 printf "version $ver\n\n* NEWS: Record release date.\n" \
     | git commit -F -  -a || die 'git commit failed'
 git tag -s -m "$pkg $ver" v$ver HEAD || die 'git tag failed'
@@ -140,6 +174,6 @@ git tag -s -m "$pkg $ver" v$ver HEAD ||
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "VERSION="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: " # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/elisp-comp 4.6.21+20171216ss6cdfd-1/build-aux/elisp-comp
--- 4.6+git20120811-4/build-aux/elisp-comp	2010-08-21 05:03:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/elisp-comp	1970-01-01 00:00:00.000000000 +0000
@@ -1,94 +0,0 @@
-#!/bin/sh
-# Copyright (C) 1995, 2000, 2003, 2004, 2005, 2009, 2010 Free Software
-# Foundation, Inc.
-
-scriptversion=2010-02-06.18; # UTC
-
-# Franc,ois Pinard <pinard@iro.umontreal.ca>, 1995.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-case $1 in
-  '')
-     echo "$0: No files.  Try \`$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: elisp-comp [--help] [--version] FILES...
-
-This script byte-compiles all `.el' files listed as FILES using GNU
-Emacs, and put the resulting `.elc' files into the current directory,
-so disregarding the original directories used in `.el' arguments.
-
-This script manages in such a way that all Emacs LISP files to
-be compiled are made visible between themselves, in the event
-they require or load-library one another.
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "elisp-comp $scriptversion"
-    exit $?
-    ;;
-esac
-
-if test -z "$EMACS" || test "$EMACS" = "t"; then
-  # Value of "t" means we are running in a shell under Emacs.
-  # Just assume Emacs is called "emacs".
-  EMACS=emacs
-fi
-
-tempdir=elc.$$
-
-# Cleanup the temporary directory on exit.
-trap 'ret=$?; rm -rf "$tempdir" && exit $ret' 0
-do_exit='(exit $ret); exit $ret'
-trap "ret=129; $do_exit" 1
-trap "ret=130; $do_exit" 2
-trap "ret=141; $do_exit" 13
-trap "ret=143; $do_exit" 15
-
-mkdir $tempdir
-cp "$@" $tempdir
-
-(
-  cd $tempdir
-  echo "(setq load-path (cons nil load-path))" > script
-  $EMACS -batch -q -l script -f batch-byte-compile *.el || exit $?
-  mv *.elc ..
-) || exit $?
-
-(exit 0); exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
diff -pruN 4.6+git20120811-4/build-aux/gendocs.sh 4.6.21+20171216ss6cdfd-1/build-aux/gendocs.sh
--- 4.6+git20120811-4/build-aux/gendocs.sh	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/gendocs.sh	2017-01-20 07:05:41.000000000 +0000
@@ -2,10 +2,9 @@
 # gendocs.sh -- generate a GNU manual in many formats.  This script is
 #   mentioned in maintain.texi.  See the help message below for usage details.
 
-scriptversion=2011-04-08.14
+scriptversion=2016-12-31.18
 
-# Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-# Foundation, Inc.
+# Copyright 2003-2017 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -21,56 +20,93 @@ scriptversion=2011-04-08.14
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # Original author: Mohit Agarwal.
-# Send bug reports and any other correspondence to bug-texinfo@gnu.org.
+# Send bug reports and any other correspondence to bug-gnulib@gnu.org.
 #
 # The latest version of this script, and the companion template, is
-# available from Texinfo CVS:
-# http://savannah.gnu.org/cgi-bin/viewcvs/texinfo/texinfo/util/gendocs.sh
-# http://savannah.gnu.org/cgi-bin/viewcvs/texinfo/texinfo/util/gendocs_template
+# available from the Gnulib repository:
 #
-# An up-to-date copy is also maintained in Gnulib (gnu.org/software/gnulib).
+# http://git.savannah.gnu.org/cgit/gnulib.git/tree/build-aux/gendocs.sh
+# http://git.savannah.gnu.org/cgit/gnulib.git/tree/doc/gendocs_template
+
+# TODO:
+# - image importing was only implemented for HTML generated by
+#   makeinfo.  But it should be simple enough to adjust.
+# - images are not imported in the source tarball.  All the needed
+#   formats (PDF, PNG, etc.) should be included.
 
 prog=`basename "$0"`
 srcdir=`pwd`
 
-scripturl="http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~/texinfo/texinfo/util/gendocs.sh"
-templateurl="http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~/texinfo/texinfo/util/gendocs_template"
+scripturl="http://git.savannah.gnu.org/cgit/gnulib.git/plain/build-aux/gendocs.sh"
+templateurl="http://git.savannah.gnu.org/cgit/gnulib.git/plain/doc/gendocs_template"
 
 : ${SETLANG="env LANG= LC_MESSAGES= LC_ALL= LANGUAGE="}
 : ${MAKEINFO="makeinfo"}
-: ${TEXI2DVI="texi2dvi -t @finalout"}
-: ${DVIPS="dvips"}
+: ${TEXI2DVI="texi2dvi"}
 : ${DOCBOOK2HTML="docbook2html"}
 : ${DOCBOOK2PDF="docbook2pdf"}
-: ${DOCBOOK2PS="docbook2ps"}
 : ${DOCBOOK2TXT="docbook2txt"}
 : ${GENDOCS_TEMPLATE_DIR="."}
+: ${PERL='perl'}
 : ${TEXI2HTML="texi2html"}
 unset CDPATH
 unset use_texi2html
 
+MANUAL_TITLE=
+PACKAGE=
+EMAIL=webmasters@gnu.org  # please override with --email
+commonarg= # passed to all makeinfo/texi2html invcations.
+dirargs=   # passed to all tools (-I dir).
+dirs=      # -I directories.
+htmlarg="--css-ref=/software/gnulib/manual.css -c TOP_NODE_UP_URL=/manual"
+infoarg=--no-split
+generate_ascii=true
+generate_html=true
+generate_info=true
+generate_tex=true
+outdir=manual
+source_extra=
+split=node
+srcfile=
+texarg="-t @finalout"
+
 version="gendocs.sh $scriptversion
 
-Copyright 2010 Free Software Foundation, Inc.
+Copyright 2017 Free Software Foundation, Inc.
 There is NO warranty.  You may redistribute this software
 under the terms of the GNU General Public License.
 For more information about these matters, see the files named COPYING."
 
 usage="Usage: $prog [OPTION]... PACKAGE MANUAL-TITLE
 
-Generate various output formats from PACKAGE.texinfo (or .texi or .txi) source.
-See the GNU Maintainers document for a more extensive discussion:
+Generate output in various formats from PACKAGE.texinfo (or .texi or
+.txi) source.  See the GNU Maintainers document for a more extensive
+discussion:
   http://www.gnu.org/prep/maintain_toc.html
 
 Options:
-  -s SRCFILE  read Texinfo from SRCFILE, instead of PACKAGE.{texinfo|texi|txi}
-  -o OUTDIR   write files into OUTDIR, instead of manual/.
-  --email ADR use ADR as contact in generated web pages.
-  --docbook   convert to DocBook too (xml, txt, html, pdf and ps).
-  --html ARG  pass indicated ARG to makeinfo or texi2html for HTML targets.
-  --texi2html use texi2html to generate HTML targets.
-  --help      display this help and exit successfully.
-  --version   display version information and exit successfully.
+  --email ADR use ADR as contact in generated web pages; always give this.
+
+  -s SRCFILE   read Texinfo from SRCFILE, instead of PACKAGE.{texinfo|texi|txi}
+  -o OUTDIR    write files into OUTDIR, instead of manual/.
+  -I DIR       append DIR to the Texinfo search path.
+  --common ARG pass ARG in all invocations.
+  --html ARG   pass ARG to makeinfo or texi2html for HTML targets,
+                 instead of '$htmlarg'.
+  --info ARG   pass ARG to makeinfo for Info, instead of --no-split.
+  --no-ascii   skip generating the plain text output.
+  --no-html    skip generating the html output.
+  --no-info    skip generating the info output.
+  --no-tex     skip generating the dvi and pdf output.
+  --source ARG include ARG in tar archive of sources.
+  --split HOW  make split HTML by node, section, chapter; default node.
+  --tex ARG    pass ARG to texi2dvi for DVI and PDF, instead of -t @finalout.
+
+  --texi2html  use texi2html to make HTML target, with all split versions.
+  --docbook    convert through DocBook too (xml, txt, html, pdf).
+
+  --help       display this help and exit successfully.
+  --version    display version information and exit successfully.
 
 Simple example: $prog --email bug-gnu-emacs@gnu.org emacs \"GNU Emacs Manual\"
 
@@ -80,12 +116,12 @@ Typical sequence:
   wget \"$templateurl\"
   $prog --email BUGLIST MANUAL \"GNU MANUAL - One-line description\"
 
-Output will be in a new subdirectory \"manual\" (by default, use -o OUTDIR
-to override).  Move all the new files into your web CVS tree, as
-explained in the Web Pages node of maintain.texi.
+Output will be in a new subdirectory \"manual\" (by default;
+use -o OUTDIR to override).  Move all the new files into your web CVS
+tree, as explained in the Web Pages node of maintain.texi.
 
-Please use the --email ADDRESS option to specify your bug-reporting
-address in the generated HTML pages.
+Please use the --email ADDRESS option so your own bug-reporting
+address will be used in the generated HTML pages.
 
 MANUAL-TITLE is included as part of the HTML <title> of the overall
 manual/index.html file.  It should include the name of the package being
@@ -102,43 +138,44 @@ If a manual's Texinfo sources are spread
 first copy or symlink all Texinfo sources into a single directory.
 (Part of the script's work is to make a tar.gz of the sources.)
 
-You can set the environment variables MAKEINFO, TEXI2DVI, TEXI2HTML, and
-DVIPS to control the programs that get executed, and
+As implied above, by default monolithic Info files are generated.
+If you want split Info, or other Info options, use --info to override.
+
+You can set the environment variables MAKEINFO, TEXI2DVI, TEXI2HTML,
+and PERL to control the programs that get executed, and
 GENDOCS_TEMPLATE_DIR to control where the gendocs_template file is
 looked for.  With --docbook, the environment variables DOCBOOK2HTML,
-DOCBOOK2PDF, DOCBOOK2PS, and DOCBOOK2TXT are also respected.
+DOCBOOK2PDF, and DOCBOOK2TXT are also consulted.
 
 By default, makeinfo and texi2dvi are run in the default (English)
 locale, since that's the language of most Texinfo manuals.  If you
 happen to have a non-English manual and non-English web site, see the
 SETLANG setting in the source.
 
-Email bug reports or enhancement requests to bug-texinfo@gnu.org.
+Email bug reports or enhancement requests to bug-gnulib@gnu.org.
 "
 
-calcsize()
-{
-  size=`ls -ksl $1 | awk '{print $1}'`
-  echo $size
-}
-
-MANUAL_TITLE=
-PACKAGE=
-EMAIL=webmasters@gnu.org  # please override with --email
-htmlarg=
-outdir=manual
-srcfile=
-
 while test $# -gt 0; do
   case $1 in
-    --email) shift; EMAIL=$1;;
-    --help) echo "$usage"; exit 0;;
-    --version) echo "$version"; exit 0;;
-    -s) shift; srcfile=$1;;
-    -o) shift; outdir=$1;;
-    --docbook) docbook=yes;;
-    --html) shift; htmlarg=$1;;
+    -s)          shift; srcfile=$1;;
+    -o)          shift; outdir=$1;;
+    -I)          shift; dirargs="$dirargs -I '$1'"; dirs="$dirs $1";;
+    --common)    shift; commonarg=$1;;
+    --docbook)   docbook=yes;;
+    --email)     shift; EMAIL=$1;;
+    --html)      shift; htmlarg=$1;;
+    --info)      shift; infoarg=$1;;
+    --no-ascii)  generate_ascii=false;;
+    --no-html)   generate_ascii=false;;
+    --no-info)   generate_info=false;;
+    --no-tex)    generate_tex=false;;
+    --source)    shift; source_extra=$1;;
+    --split)     shift; split=$1;;
+    --tex)       shift; texarg=$1;;
     --texi2html) use_texi2html=1;;
+
+    --help)      echo "$usage"; exit 0;;
+    --version)   echo "$version"; exit 0;;
     -*)
       echo "$0: Unknown option \`$1'." >&2
       echo "$0: Try \`--help' for more information." >&2
@@ -156,6 +193,9 @@ while test $# -gt 0; do
   shift
 done
 
+# makeinfo uses the dirargs, but texi2dvi doesn't.
+commonarg=" $dirargs $commonarg"
+
 # For most of the following, the base name is just $PACKAGE
 base=$PACKAGE
 
@@ -183,57 +223,119 @@ if test ! -r $GENDOCS_TEMPLATE_DIR/gendo
   exit 1
 fi
 
+# Function to return size of $1 in something resembling kilobytes.
+calcsize()
+{
+  size=`ls -ksl $1 | awk '{print $1}'`
+  echo $size
+}
+
+# copy_images OUTDIR HTML-FILE...
+# -------------------------------
+# Copy all the images needed by the HTML-FILEs into OUTDIR.
+# Look for them in . and the -I directories; this is simpler than what
+# makeinfo supports with -I, but hopefully it will suffice.
+copy_images()
+{
+  local odir
+  odir=$1
+  shift
+  $PERL -n -e "
+BEGIN {
+  \$me = '$prog';
+  \$odir = '$odir';
+  @dirs = qw(. $dirs);
+}
+" -e '
+/<img src="(.*?)"/g && ++$need{$1};
+
+END {
+  #print "$me: @{[keys %need]}\n";  # for debugging, show images found.
+  FILE: for my $f (keys %need) {
+    for my $d (@dirs) {
+      if (-f "$d/$f") {
+        use File::Basename;
+        my $dest = dirname ("$odir/$f");
+        #
+        use File::Path;
+        -d $dest || mkpath ($dest)
+          || die "$me: cannot mkdir $dest: $!\n";
+        #
+        use File::Copy;
+        copy ("$d/$f", $dest)
+          || die "$me: cannot copy $d/$f to $dest: $!\n";
+        next FILE;
+      }
+    }
+    die "$me: $ARGV: cannot find image $f\n";
+  }
+}
+' -- "$@" || exit 1
+}
+
 case $outdir in
   /*) abs_outdir=$outdir;;
   *)  abs_outdir=$srcdir/$outdir;;
 esac
 
-echo Generating output formats for $srcfile
-
-cmd="$SETLANG $MAKEINFO -o $PACKAGE.info \"$srcfile\""
-echo "Generating info files... ($cmd)"
-eval "$cmd"
+echo "Making output for $srcfile"
+echo " in `pwd`"
 mkdir -p "$outdir/"
-tar czf "$outdir/$PACKAGE.info.tar.gz" $PACKAGE.info*
-info_tgz_size=`calcsize "$outdir/$PACKAGE.info.tar.gz"`
-# do not mv the info files, there's no point in having them available
-# separately on the web.
-
-cmd="$SETLANG ${TEXI2DVI} \"$srcfile\""
-echo "Generating dvi ... ($cmd)"
-eval "$cmd"
-
-# now, before we compress dvi:
-echo Generating postscript...
-${DVIPS} $PACKAGE -o
-gzip -f -9 $PACKAGE.ps
-ps_gz_size=`calcsize $PACKAGE.ps.gz`
-mv $PACKAGE.ps.gz "$outdir/"
-
-# compress/finish dvi:
-gzip -f -9 $PACKAGE.dvi
-dvi_gz_size=`calcsize $PACKAGE.dvi.gz`
-mv $PACKAGE.dvi.gz "$outdir/"
-
-cmd="$SETLANG ${TEXI2DVI} --pdf \"$srcfile\""
-echo "Generating pdf ... ($cmd)"
-eval "$cmd"
-pdf_size=`calcsize $PACKAGE.pdf`
-mv $PACKAGE.pdf "$outdir/"
-
-cmd="$SETLANG $MAKEINFO -o $PACKAGE.txt --no-split --no-headers \"$srcfile\""
-echo "Generating ASCII... ($cmd)"
-eval "$cmd"
-ascii_size=`calcsize $PACKAGE.txt`
-gzip -f -9 -c $PACKAGE.txt >"$outdir/$PACKAGE.txt.gz"
-ascii_gz_size=`calcsize "$outdir/$PACKAGE.txt.gz"`
-mv $PACKAGE.txt "$outdir/"
 
+# 
+if $generate_info; then
+  cmd="$SETLANG $MAKEINFO -o $PACKAGE.info $commonarg $infoarg \"$srcfile\""
+  echo "Generating info... ($cmd)"
+  rm -f $PACKAGE.info* # get rid of any strays
+  eval "$cmd"
+  tar czf "$outdir/$PACKAGE.info.tar.gz" $PACKAGE.info*
+  ls -l "$outdir/$PACKAGE.info.tar.gz"
+  info_tgz_size=`calcsize "$outdir/$PACKAGE.info.tar.gz"`
+  # do not mv the info files, there's no point in having them available
+  # separately on the web.
+fi  # end info
+
+# 
+if $generate_tex; then
+  cmd="$SETLANG $TEXI2DVI $dirargs $texarg \"$srcfile\""
+  printf "\nGenerating dvi... ($cmd)\n"
+  eval "$cmd"
+  # compress/finish dvi:
+  gzip -f -9 $PACKAGE.dvi
+  dvi_gz_size=`calcsize $PACKAGE.dvi.gz`
+  mv $PACKAGE.dvi.gz "$outdir/"
+  ls -l "$outdir/$PACKAGE.dvi.gz"
+
+  cmd="$SETLANG $TEXI2DVI --pdf $dirargs $texarg \"$srcfile\""
+  printf "\nGenerating pdf... ($cmd)\n"
+  eval "$cmd"
+  pdf_size=`calcsize $PACKAGE.pdf`
+  mv $PACKAGE.pdf "$outdir/"
+  ls -l "$outdir/$PACKAGE.pdf"
+fi # end tex (dvi + pdf)
+
+# 
+if $generate_ascii; then
+  opt="-o $PACKAGE.txt --no-split --no-headers $commonarg"
+  cmd="$SETLANG $MAKEINFO $opt \"$srcfile\""
+  printf "\nGenerating ascii... ($cmd)\n"
+  eval "$cmd"
+  ascii_size=`calcsize $PACKAGE.txt`
+  gzip -f -9 -c $PACKAGE.txt >"$outdir/$PACKAGE.txt.gz"
+  ascii_gz_size=`calcsize "$outdir/$PACKAGE.txt.gz"`
+  mv $PACKAGE.txt "$outdir/"
+  ls -l "$outdir/$PACKAGE.txt" "$outdir/$PACKAGE.txt.gz"
+fi
+
+# 
+
+if $generate_html; then
+# Split HTML at level $1.  Used for texi2html.
 html_split()
 {
-  opt="--split=$1 $htmlarg --node-files"
+  opt="--split=$1 --node-files $commonarg $htmlarg"
   cmd="$SETLANG $TEXI2HTML --output $PACKAGE.html $opt \"$srcfile\""
-  echo "Generating html by $1... ($cmd)"
+  printf "\nGenerating html by $1... ($cmd)\n"
   eval "$cmd"
   split_html_dir=$PACKAGE.html
   (
@@ -249,32 +351,48 @@ html_split()
 }
 
 if test -z "$use_texi2html"; then
-  opt="--no-split --html -o $PACKAGE.html $htmlarg"
+  opt="--no-split --html -o $PACKAGE.html $commonarg $htmlarg"
   cmd="$SETLANG $MAKEINFO $opt \"$srcfile\""
-  echo "Generating monolithic html... ($cmd)"
+  printf "\nGenerating monolithic html... ($cmd)\n"
   rm -rf $PACKAGE.html  # in case a directory is left over
   eval "$cmd"
   html_mono_size=`calcsize $PACKAGE.html`
   gzip -f -9 -c $PACKAGE.html >"$outdir/$PACKAGE.html.gz"
   html_mono_gz_size=`calcsize "$outdir/$PACKAGE.html.gz"`
+  copy_images "$outdir/" $PACKAGE.html
   mv $PACKAGE.html "$outdir/"
+  ls -l "$outdir/$PACKAGE.html" "$outdir/$PACKAGE.html.gz"
 
-  cmd="$SETLANG $MAKEINFO --html -o $PACKAGE.html $htmlarg \"$srcfile\""
-  echo "Generating html by node... ($cmd)"
+  # Before Texinfo 5.0, makeinfo did not accept a --split=HOW option,
+  # it just always split by node.  So if we're splitting by node anyway,
+  # leave it out.
+  if test "x$split" = xnode; then
+    split_arg=
+  else
+    split_arg=--split=$split
+  fi
+  #
+  opt="--html -o $PACKAGE.html $split_arg $commonarg $htmlarg"
+  cmd="$SETLANG $MAKEINFO $opt \"$srcfile\""
+  printf "\nGenerating html by $split... ($cmd)\n"
   eval "$cmd"
   split_html_dir=$PACKAGE.html
+  copy_images $split_html_dir/ $split_html_dir/*.html
   (
-   cd ${split_html_dir} || exit 1
-   tar -czf "$abs_outdir/${PACKAGE}.html_node.tar.gz" -- *.html
+    cd $split_html_dir || exit 1
+    tar -czf "$abs_outdir/$PACKAGE.html_$split.tar.gz" -- *
   )
-  html_node_tgz_size=`calcsize "$outdir/${PACKAGE}.html_node.tar.gz"`
-  rm -f "$outdir"/html_node/*.html
-  mkdir -p "$outdir/html_node/"
-  mv ${split_html_dir}/*.html "$outdir/html_node/"
-  rmdir ${split_html_dir}
-else
-  cmd="$SETLANG $TEXI2HTML --output $PACKAGE.html $htmlarg \"$srcfile\""
-  echo "Generating monolithic html... ($cmd)"
+  eval \
+    html_${split}_tgz_size=`calcsize "$outdir/$PACKAGE.html_$split.tar.gz"`
+  rm -rf "$outdir/html_$split/"
+  mv $split_html_dir "$outdir/html_$split/"
+  du -s "$outdir/html_$split/"
+  ls -l "$outdir/$PACKAGE.html_$split.tar.gz"
+
+else # use texi2html:
+  opt="--output $PACKAGE.html $commonarg $htmlarg"
+  cmd="$SETLANG $TEXI2HTML $opt \"$srcfile\""
+  printf "\nGenerating monolithic html with texi2html... ($cmd)\n"
   rm -rf $PACKAGE.html  # in case a directory is left over
   eval "$cmd"
   html_mono_size=`calcsize $PACKAGE.html`
@@ -286,19 +404,25 @@ else
   html_split chapter
   html_split section
 fi
+fi # end html
 
-echo Making .tar.gz for sources...
+# 
+printf "\nMaking .tar.gz for sources...\n"
 d=`dirname $srcfile`
 (
   cd "$d"
-  srcfiles=`ls *.texinfo *.texi *.txi *.eps 2>/dev/null` || true
-  tar cvzfh "$abs_outdir/$PACKAGE.texi.tar.gz" $srcfiles
+  srcfiles=`ls -d *.texinfo *.texi *.txi *.eps $source_extra 2>/dev/null` || true
+  tar czfh "$abs_outdir/$PACKAGE.texi.tar.gz" $srcfiles
+  ls -l "$abs_outdir/$PACKAGE.texi.tar.gz"
 )
 texi_tgz_size=`calcsize "$outdir/$PACKAGE.texi.tar.gz"`
 
+# 
+# Do everything again through docbook.
 if test -n "$docbook"; then
-  cmd="$SETLANG $MAKEINFO -o - --docbook \"$srcfile\" > ${srcdir}/$PACKAGE-db.xml"
-  echo "Generating docbook XML... ($cmd)"
+  opt="-o - --docbook $commonarg"
+  cmd="$SETLANG $MAKEINFO $opt \"$srcfile\" >${srcdir}/$PACKAGE-db.xml"
+  printf "\nGenerating docbook XML... ($cmd)\n"
   eval "$cmd"
   docbook_xml_size=`calcsize $PACKAGE-db.xml`
   gzip -f -9 -c $PACKAGE-db.xml >"$outdir/$PACKAGE-db.xml.gz"
@@ -306,8 +430,9 @@ if test -n "$docbook"; then
   mv $PACKAGE-db.xml "$outdir/"
 
   split_html_db_dir=html_node_db
-  cmd="${DOCBOOK2HTML} -o $split_html_db_dir \"${outdir}/$PACKAGE-db.xml\""
-  echo "Generating docbook HTML... ($cmd)"
+  opt="$commonarg -o $split_html_db_dir"
+  cmd="$DOCBOOK2HTML $opt \"${outdir}/$PACKAGE-db.xml\""
+  printf "\nGenerating docbook HTML... ($cmd)\n"
   eval "$cmd"
   (
     cd ${split_html_db_dir} || exit 1
@@ -319,33 +444,29 @@ if test -n "$docbook"; then
   mv ${split_html_db_dir}/*.html "$outdir/html_node_db/"
   rmdir ${split_html_db_dir}
 
-  cmd="${DOCBOOK2TXT} \"${outdir}/$PACKAGE-db.xml\""
-  echo "Generating docbook ASCII... ($cmd)"
+  cmd="$DOCBOOK2TXT \"${outdir}/$PACKAGE-db.xml\""
+  printf "\nGenerating docbook ASCII... ($cmd)\n"
   eval "$cmd"
   docbook_ascii_size=`calcsize $PACKAGE-db.txt`
   mv $PACKAGE-db.txt "$outdir/"
 
-  cmd="${DOCBOOK2PS} \"${outdir}/$PACKAGE-db.xml\""
-  echo "Generating docbook PS... ($cmd)"
-  eval "$cmd"
-  gzip -f -9 -c $PACKAGE-db.ps >"$outdir/$PACKAGE-db.ps.gz"
-  docbook_ps_gz_size=`calcsize "$outdir/$PACKAGE-db.ps.gz"`
-  mv $PACKAGE-db.ps "$outdir/"
-
-  cmd="${DOCBOOK2PDF} \"${outdir}/$PACKAGE-db.xml\""
-  echo "Generating docbook PDF... ($cmd)"
+  cmd="$DOCBOOK2PDF \"${outdir}/$PACKAGE-db.xml\""
+  printf "\nGenerating docbook PDF... ($cmd)\n"
   eval "$cmd"
   docbook_pdf_size=`calcsize $PACKAGE-db.pdf`
   mv $PACKAGE-db.pdf "$outdir/"
 fi
 
-echo "Writing index file..."
+# 
+printf "\nMaking index.html for $PACKAGE...\n"
 if test -z "$use_texi2html"; then
-   CONDS="/%%IF  *HTML_SECTION%%/,/%%ENDIF  *HTML_SECTION%%/d;\
-          /%%IF  *HTML_CHAPTER%%/,/%%ENDIF  *HTML_CHAPTER%%/d"
+  CONDS="/%%IF  *HTML_SECTION%%/,/%%ENDIF  *HTML_SECTION%%/d;\
+         /%%IF  *HTML_CHAPTER%%/,/%%ENDIF  *HTML_CHAPTER%%/d"
 else
-   CONDS="/%%ENDIF.*%%/d;/%%IF  *HTML_SECTION%%/d;/%%IF  *HTML_CHAPTER%%/d"
+  # should take account of --split here.
+  CONDS="/%%ENDIF.*%%/d;/%%IF  *HTML_SECTION%%/d;/%%IF  *HTML_CHAPTER%%/d"
 fi
+
 curdate=`$SETLANG date '+%B %d, %Y'`
 sed \
    -e "s!%%TITLE%%!$MANUAL_TITLE!g" \
@@ -360,13 +481,11 @@ sed \
    -e "s!%%INFO_TGZ_SIZE%%!$info_tgz_size!g" \
    -e "s!%%DVI_GZ_SIZE%%!$dvi_gz_size!g" \
    -e "s!%%PDF_SIZE%%!$pdf_size!g" \
-   -e "s!%%PS_GZ_SIZE%%!$ps_gz_size!g" \
    -e "s!%%ASCII_SIZE%%!$ascii_size!g" \
    -e "s!%%ASCII_GZ_SIZE%%!$ascii_gz_size!g" \
    -e "s!%%TEXI_TGZ_SIZE%%!$texi_tgz_size!g" \
    -e "s!%%DOCBOOK_HTML_NODE_TGZ_SIZE%%!$html_node_db_tgz_size!g" \
    -e "s!%%DOCBOOK_ASCII_SIZE%%!$docbook_ascii_size!g" \
-   -e "s!%%DOCBOOK_PS_GZ_SIZE%%!$docbook_ps_gz_size!g" \
    -e "s!%%DOCBOOK_PDF_SIZE%%!$docbook_pdf_size!g" \
    -e "s!%%DOCBOOK_XML_SIZE%%!$docbook_xml_size!g" \
    -e "s!%%DOCBOOK_XML_GZ_SIZE%%!$docbook_xml_gz_size!g" \
diff -pruN 4.6+git20120811-4/build-aux/gitlog-to-changelog 4.6.21+20171216ss6cdfd-1/build-aux/gitlog-to-changelog
--- 4.6+git20120811-4/build-aux/gitlog-to-changelog	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/gitlog-to-changelog	2017-01-20 07:05:41.000000000 +0000
@@ -1,15 +1,15 @@
-eval '(exit $?0)' && eval 'exec perl -wS "$0" ${1+"$@"}'
+eval '(exit $?0)' && eval 'exec perl -wS "$0" "$@"'
   & eval 'exec perl -wS "$0" $argv:q'
     if 0;
 # Convert git log output to ChangeLog format.
 
-my $VERSION = '2012-01-18 07:50'; # UTC
+my $VERSION = '2016-03-22 21:49'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
-# Copyright (C) 2008-2012 Free Software Foundation, Inc.
+# Copyright (C) 2008-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -68,12 +68,20 @@ OPTIONS:
                   header; the default is to cluster adjacent commit messages
                   if their headers are the same and neither commit message
                   contains multiple paragraphs.
+   --srcdir=DIR the root of the source tree, from which the .git/
+                  directory can be derived.
    --since=DATE convert only the logs since DATE;
                   the default is to convert all log entries.
+   --until=DATE convert only the logs older than DATE.
+   --ignore-matching=PAT ignore commit messages whose first lines match PAT.
+   --ignore-line=PAT ignore lines of commit messages that match PAT.
    --format=FMT set format string for commit subject and body;
                   see 'man git-log' for the list of format metacharacters;
                   the default is '%s%n%b%n'
-
+   --strip-tab  remove one additional leading TAB from commit message lines.
+   --strip-cherry-pick  remove data inserted by "git cherry-pick";
+                  this includes the "cherry picked from commit ..." line,
+                  and the possible final "Conflicts:" paragraph.
    --help       display this help and exit
    --version    output version information and exit
 
@@ -189,32 +197,71 @@ sub parse_amend_file($)
   return $h;
 }
 
+# git_dir_option $SRCDIR
+#
+# From $SRCDIR, the --git-dir option to pass to git (none if $SRCDIR
+# is undef).  Return as a list (0 or 1 element).
+sub git_dir_option($)
+{
+  my ($srcdir) = @_;
+  my @res = ();
+  if (defined $srcdir)
+    {
+      my $qdir = shell_quote $srcdir;
+      my $cmd = "cd $qdir && git rev-parse --show-toplevel";
+      my $qcmd = shell_quote $cmd;
+      my $git_dir = qx($cmd);
+      defined $git_dir
+        or die "$ME: cannot run $qcmd: $!\n";
+      $? == 0
+        or die "$ME: $qcmd had unexpected exit code or signal ($?)\n";
+      chomp $git_dir;
+      push @res, "--git-dir=$git_dir/.git";
+    }
+  @res;
+}
+
 {
   my $since_date;
+  my $until_date;
   my $format_string = '%s%n%b%n';
   my $amend_file;
   my $append_dot = 0;
   my $cluster = 1;
+  my $ignore_matching;
+  my $ignore_line;
+  my $strip_tab = 0;
+  my $strip_cherry_pick = 0;
+  my $srcdir;
   GetOptions
     (
      help => sub { usage 0 },
      version => sub { print "$ME version $VERSION\n"; exit },
      'since=s' => \$since_date,
+     'until=s' => \$until_date,
      'format=s' => \$format_string,
      'amend=s' => \$amend_file,
      'append-dot' => \$append_dot,
      'cluster!' => \$cluster,
+     'ignore-matching=s' => \$ignore_matching,
+     'ignore-line=s' => \$ignore_line,
+     'strip-tab' => \$strip_tab,
+     'strip-cherry-pick' => \$strip_cherry_pick,
+     'srcdir=s' => \$srcdir,
     ) or usage 1;
 
-
   defined $since_date
     and unshift @ARGV, "--since=$since_date";
+  defined $until_date
+    and unshift @ARGV, "--until=$until_date";
 
   # This is a hash that maps an SHA1 to perl code (i.e., s/old/new/)
   # that makes a correction in the log or attribution of that commit.
   my $amend_code = defined $amend_file ? parse_amend_file $amend_file : {};
 
-  my @cmd = (qw (git log --log-size),
+  my @cmd = ('git',
+             git_dir_option $srcdir,
+             qw(log --log-size),
              '--pretty=format:%H:%ct  %an  <%ae>%n%n'.$format_string, @ARGV);
   open PIPE, '-|', @cmd
     or die ("$ME: failed to run '". quoted_cmd (@cmd) ."': $!\n"
@@ -223,6 +270,7 @@ sub parse_amend_file($)
   my $prev_multi_paragraph;
   my $prev_date_line = '';
   my @prev_coauthors = ();
+  my @skipshas = ();
   while (1)
     {
       defined (my $in = <PIPE>)
@@ -243,6 +291,19 @@ sub parse_amend_file($)
       $sha =~ /^[0-9a-fA-F]{40}$/
         or die "$ME:$.: invalid SHA1: $sha\n";
 
+      my $skipflag = 0;
+      if (@skipshas)
+        {
+          foreach(@skipshas)
+            {
+              if ($sha =~ /^$_/)
+                {
+                  $skipflag = $_;
+                  last;
+                }
+            }
+        }
+
       # If this commit's log requires any transformation, do it now.
       my $code = $amend_code->{$sha};
       if (defined $code)
@@ -263,7 +324,14 @@ sub parse_amend_file($)
           $rest = $_;
         }
 
-      my @line = split "\n", $rest;
+      # Remove lines inserted by "git cherry-pick".
+      if ($strip_cherry_pick)
+        {
+          $rest =~ s/^\s*Conflicts:\n.*//sm;
+          $rest =~ s/^\s*\(cherry picked from commit [\da-f]+\)\n//m;
+        }
+
+      my @line = split /[ \t]*\n/, $rest;
       my $author_line = shift @line;
       defined $author_line
         or die "$ME:$.: unexpected EOF\n";
@@ -273,17 +341,18 @@ sub parse_amend_file($)
 
       # Format 'Copyright-paperwork-exempt: Yes' as a standard ChangeLog
       # `(tiny change)' annotation.
-      my $tiny = (grep (/^Copyright-paperwork-exempt:\s+[Yy]es$/, @line)
+      my $tiny = (grep (/^(?:Copyright-paperwork-exempt|Tiny-change):\s+[Yy]es$/, @line)
                   ? '  (tiny change)' : '');
 
       my $date_line = sprintf "%s  %s$tiny\n",
-        strftime ("%F", localtime ($1)), $2;
+        strftime ("%Y-%m-%d", localtime ($1)), $2;
 
       my @coauthors = grep /^Co-authored-by:.*$/, @line;
       # Omit meta-data lines we've already interpreted.
       @line = grep !/^(?:Signed-off-by:[ ].*>$
                        |Co-authored-by:[ ]
                        |Copyright-paperwork-exempt:[ ]
+                       |Tiny-change:[ ]
                        )/x, @line;
 
       # Remove leading and trailing blank lines.
@@ -293,64 +362,109 @@ sub parse_amend_file($)
           while ($line[$#line] =~ /^\s*$/) { pop @line; }
         }
 
-      # Record whether there are two or more paragraphs.
-      my $multi_paragraph = grep /^\s*$/, @line;
+      # Handle Emacs gitmerge.el "skipped" commits.
+      # Yes, this should be controlled by an option.  So sue me.
+      if ( grep /^(; )?Merge from /, @line )
+      {
+          my $found = 0;
+          foreach (@line)
+          {
+              if (grep /^The following commit.*skipped:$/, $_)
+              {
+                  $found = 1;
+                  ## Reset at each merge to reduce chance of false matches.
+                  @skipshas = ();
+                  next;
+              }
+              if ($found && $_ =~ /^([0-9a-fA-F]{7,}) [^ ]/)
+              {
+                  push ( @skipshas, $1 );
+              }
+          }
+      }
 
-      # Format 'Co-authored-by: A U Thor <email@example.com>' lines in
-      # standard multi-author ChangeLog format.
-      for (@coauthors)
+      # Ignore commits that match the --ignore-matching pattern, if specified.
+      if (defined $ignore_matching && @line && $line[0] =~ /$ignore_matching/)
         {
-          s/^Co-authored-by:\s*/\t    /;
-          s/\s*</  </;
-
-          /<.*?@.*\..*>/
-            or warn "$ME: warning: missing email address for "
-              . substr ($_, 5) . "\n";
+          $skipflag = 1;
         }
-
-      # If clustering of commit messages has been disabled, if this header
-      # would be different from the previous date/name/email/coauthors header,
-      # or if this or the previous entry consists of two or more paragraphs,
-      # then print the header.
-      if ( ! $cluster
-          || $date_line ne $prev_date_line
-          || "@coauthors" ne "@prev_coauthors"
-          || $multi_paragraph
-          || $prev_multi_paragraph)
+      elsif ($skipflag)
         {
-          $prev_date_line eq ''
-            or print "\n";
-          print $date_line;
-          @coauthors
-            and print join ("\n", @coauthors), "\n";
+          ## Perhaps only warn if a pattern matches more than once?
+          warn "$ME: warning: skipping $sha due to $skipflag\n";
         }
-      $prev_date_line = $date_line;
-      @prev_coauthors = @coauthors;
-      $prev_multi_paragraph = $multi_paragraph;
 
-      # If there were any lines
-      if (@line == 0)
+      if (! $skipflag)
         {
-          warn "$ME: warning: empty commit message:\n  $date_line\n";
-        }
-      else
-        {
-          if ($append_dot)
+          if (defined $ignore_line && @line)
+            {
+              @line = grep ! /$ignore_line/, @line;
+              while ($line[$#line] =~ /^\s*$/) { pop @line; }
+            }
+
+          # Record whether there are two or more paragraphs.
+          my $multi_paragraph = grep /^\s*$/, @line;
+
+          # Format 'Co-authored-by: A U Thor <email@example.com>' lines in
+          # standard multi-author ChangeLog format.
+          for (@coauthors)
             {
-              # If the first line of the message has enough room, then
-              if (length $line[0] < 72)
+              s/^Co-authored-by:\s*/\t    /;
+              s/\s*</  </;
+
+              /<.*?@.*\..*>/
+                or warn "$ME: warning: missing email address for "
+                  . substr ($_, 5) . "\n";
+            }
+
+          # If clustering of commit messages has been disabled, if this header
+          # would be different from the previous date/name/etc. header,
+          # or if this or the previous entry consists of two or more paragraphs,
+          # then print the header.
+          if ( ! $cluster
+              || $date_line ne $prev_date_line
+              || "@coauthors" ne "@prev_coauthors"
+              || $multi_paragraph
+              || $prev_multi_paragraph)
+            {
+              $prev_date_line eq ''
+                or print "\n";
+              print $date_line;
+              @coauthors
+                and print join ("\n", @coauthors), "\n";
+            }
+          $prev_date_line = $date_line;
+          @prev_coauthors = @coauthors;
+          $prev_multi_paragraph = $multi_paragraph;
+
+          # If there were any lines
+          if (@line == 0)
+            {
+              warn "$ME: warning: empty commit message:\n  $date_line\n";
+            }
+          else
+            {
+              if ($append_dot)
                 {
-                  # append a dot if there is no other punctuation or blank
-                  # at the end.
-                  $line[0] =~ /[[:punct:]\s]$/
-                    or $line[0] .= '.';
+                  # If the first line of the message has enough room, then
+                  if (length $line[0] < 72)
+                    {
+                      # append a dot if there is no other punctuation or blank
+                      # at the end.
+                      $line[0] =~ /[[:punct:]\s]$/
+                        or $line[0] .= '.';
+                    }
                 }
-            }
 
-          # Prefix each non-empty line with a TAB.
-          @line = map { length $_ ? "\t$_" : '' } @line;
+              # Remove one additional leading TAB from each line.
+              $strip_tab
+                and map { s/^\t// } @line;
 
-          print "\n", join ("\n", @line), "\n";
+              # Prefix each non-empty line with a TAB.
+              @line = map { length $_ ? "\t$_" : '' } @line;
+
+              print "\n", join ("\n", @line), "\n";
+            }
         }
 
       defined ($in = <PIPE>)
@@ -380,6 +494,6 @@ sub parse_amend_file($)
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "my $VERSION = '"
 # time-stamp-format: "%:y-%02m-%02d %02H:%02M"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "'; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/git-version-gen 4.6.21+20171216ss6cdfd-1/build-aux/git-version-gen
--- 4.6+git20120811-4/build-aux/git-version-gen	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/git-version-gen	2017-01-20 07:05:41.000000000 +0000
@@ -1,8 +1,8 @@
 #!/bin/sh
 # Print a version string.
-scriptversion=2012-01-06.07; # UTC
+scriptversion=2017-01-09.19; # UTC
 
-# Copyright (C) 2007-2012 Free Software Foundation, Inc.
+# Copyright (C) 2007-2017 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -85,26 +85,32 @@ Print a version string.
 
 Options:
 
-   --prefix           prefix of git tags (default 'v')
+   --prefix PREFIX    prefix of git tags (default 'v')
+   --fallback VERSION
+                      fallback version to use if \"git --version\" fails
 
    --help             display this help and exit
    --version          output version information and exit
 
 Running without arguments will suffice in most cases."
 
+prefix=v
+fallback=
+
 while test $# -gt 0; do
   case $1 in
     --help) echo "$usage"; exit 0;;
     --version) echo "$version"; exit 0;;
-    --prefix) shift; prefix="$1";;
+    --prefix) shift; prefix=${1?};;
+    --fallback) shift; fallback=${1?};;
     -*)
       echo "$0: Unknown option '$1'." >&2
       echo "$0: Try '--help' for more information." >&2
       exit 1;;
     *)
-      if test -z "$tarball_version_file"; then
+      if test "x$tarball_version_file" = x; then
         tarball_version_file="$1"
-      elif test -z "$tag_sed_script"; then
+      elif test "x$tag_sed_script" = x; then
         tag_sed_script="$1"
       else
         echo "$0: extra non-option argument '$1'." >&2
@@ -114,13 +120,12 @@ while test $# -gt 0; do
   shift
 done
 
-if test -z "$tarball_version_file"; then
+if test "x$tarball_version_file" = x; then
     echo "$usage"
     exit 1
 fi
 
 tag_sed_script="${tag_sed_script:-s/x/x/}"
-prefix="${prefix:-v}"
 
 nl='
 '
@@ -139,11 +144,11 @@ then
         [0-9]*) ;;
         *) v= ;;
     esac
-    test -z "$v" \
+    test "x$v" = x \
         && echo "$0: WARNING: $tarball_version_file is missing or damaged" 1>&2
 fi
 
-if test -n "$v"
+if test "x$v" != x
 then
     : # use $v
 # Otherwise, if there is at least one git commit involving the working
@@ -183,8 +188,10 @@ then
     # Remove the "g" in git describe's output string, to save a byte.
     v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
     v_from_git=1
-else
+elif test "x$fallback" = x || git --version >/dev/null 2>&1; then
     v=UNKNOWN
+else
+    v=$fallback
 fi
 
 v=`echo "$v" |sed "s/^$prefix//"`
@@ -192,8 +199,8 @@ v=`echo "$v" |sed "s/^$prefix//"`
 # Test whether to append the "-dirty" suffix only if the version
 # string we're using came from git.  I.e., skip the test if it's "UNKNOWN"
 # or if it came from .tarball-version.
-if test -n "$v_from_git"; then
-  # Don't declare a version "dirty" merely because a time stamp has changed.
+if test "x$v_from_git" != x; then
+  # Don't declare a version "dirty" merely because a timestamp has changed.
   git update-index --refresh > /dev/null 2>&1
 
   dirty=`exec 2>/dev/null;git diff-index --name-only HEAD` || dirty=
@@ -208,12 +215,12 @@ if test -n "$v_from_git"; then
 fi
 
 # Omit the trailing newline, so that m4_esyscmd can use the result directly.
-echo "$v" | tr -d "$nl"
+printf %s "$v"
 
 # Local variables:
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/gnupload 4.6.21+20171216ss6cdfd-1/build-aux/gnupload
--- 4.6+git20120811-4/build-aux/gnupload	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/gnupload	2017-01-20 07:06:27.000000000 +0000
@@ -1,9 +1,9 @@
 #!/bin/sh
 # Sign files and upload them.
 
-scriptversion=2012-01-15.15; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 2004-2010, 2012 Free Software Foundation, Inc.
+# Copyright (C) 2004-2017 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,6 +28,7 @@ GPG='gpg --batch --no-tty'
 conffile=.gnuploadrc
 to=
 dry_run=false
+replace=
 symlink_files=
 delete_files=
 delete_symlinks=
@@ -38,9 +39,8 @@ nl='
 
 usage="Usage: $0 [OPTION]... [CMD] FILE... [[CMD] FILE...]
 
-Sign all FILES, and process them at selected destinations according to CMD.
-<http://www.gnu.org/prep/maintain/html_node/Automated-FTP-Uploads.html>
-explains further.
+Sign all FILES, and process them at the destinations specified with --to.
+If CMD is not given, it defaults to uploading.  See examples below.
 
 Commands:
   --delete                 delete FILES from destination
@@ -49,17 +49,18 @@ Commands:
   --                       treat the remaining arguments as files to upload
 
 Options:
-  --help                   print this help text and exit
-  --to DEST                specify one destination for FILES
+  --to DEST                specify a destination DEST for FILES
                            (multiple --to options are allowed)
   --user NAME              sign with key NAME
+  --replace                allow replacements of existing files
   --symlink-regex[=EXPR]   use sed script EXPR to compute symbolic link names
   --dry-run                do nothing, show what would have been done
+                           (including the constructed directive file)
   --version                output version information and exit
+  --help                   print this help text and exit
 
 If --symlink-regex is given without EXPR, then the link target name
 is created by replacing the version information with '-latest', e.g.:
-
   foo-1.3.4.tar.gz -> foo-latest.tar.gz
 
 Recognized destinations are:
@@ -77,6 +78,9 @@ in the current working directory, its co
 actual command line options.  Use this to keep your defaults.  Comments
 (#) and empty lines in $conffile are allowed.
 
+<http://www.gnu.org/prep/maintain/html_node/Automated-FTP-Uploads.html>
+gives some further background.
+
 Examples:
 1. Upload foobar-1.0.tar.gz to ftp.gnu.org:
   gnupload --to ftp.gnu.org:foobar foobar-1.0.tar.gz
@@ -101,7 +105,7 @@ Examples:
            --delete oopsbar-0.9.91.tar.gz \\
            -- foobar-0.9.91.tar.gz
 
-gnupload uses the ncftpput program to do the transfers; if you don't
+gnupload executes a program ncftpput to do the transfers; if you don't
 happen to have an ncftp package installed, the ncftpput-ftp script in
 the build-aux/ directory of the gnulib package
 (http://savannah.gnu.org/projects/gnulib) may serve as a replacement.
@@ -129,6 +133,12 @@ while test -n "$1"; do
       if test -z "$2"; then
         echo "$0: Missing argument for --to" 1>&2
         exit 1
+      elif echo "$2" | grep 'ftp-upload\.gnu\.org' >/dev/null; then
+        echo "$0: Use ftp.gnu.org:PKGNAME or alpha.gnu.org:PKGNAME" >&2
+        echo "$0: for the destination, not ftp-upload.gnu.org (which" >&2
+        echo "$0:  is used for direct ftp uploads, not with gnupload)." >&2
+        echo "$0: See --help and its examples if need be." >&2
+        exit 1
       else
         to="$to $2"
         shift
@@ -146,6 +156,9 @@ while test -n "$1"; do
     --delete)
       collect_var=delete_files
       ;;
+    --replace)
+      replace="replace: true"
+      ;;
     --rmsymlink)
       collect_var=delete_symlinks
       ;;
@@ -236,6 +249,8 @@ fi
 
 # Make sure passphrase is not exported in the environment.
 unset passphrase
+unset passphrase_fd_0
+GNUPGHOME=${GNUPGHOME:-$HOME/.gnupg}
 
 # Reset PATH to be sure that echo is a built-in.  We will later use
 # 'echo $passphrase' to output the passphrase, so it is important that
@@ -243,18 +258,21 @@ unset passphrase
 # listings with their arguments...).
 # Remember this script runs with 'set -e', so if echo is not built-in
 # it will exit now.
-PATH=/empty echo -n "Enter GPG passphrase: "
-stty -echo
-read -r passphrase
-stty echo
-echo
+if $dry_run || grep -q "^use-agent" $GNUPGHOME/gpg.conf; then :; else
+  PATH=/empty echo -n "Enter GPG passphrase: "
+  stty -echo
+  read -r passphrase
+  stty echo
+  echo
+  passphrase_fd_0="--passphrase-fd 0"
+fi
 
 if test $# -ne 0; then
   for file
   do
     echo "Signing $file ..."
     rm -f $file.sig
-    echo "$passphrase" | $dbg $GPG --passphrase-fd 0 -ba -o $file.sig $file
+    echo "$passphrase" | $dbg $GPG $passphrase_fd_0 -ba -o $file.sig $file
   done
 fi
 
@@ -270,7 +288,7 @@ filename: $3$stmt"
   fi
 
   cat >${2}.directive<<EOF
-version: 1.1
+version: 1.2
 directory: $1
 comment: gnupload v. $scriptversion$stmt
 EOF
@@ -312,12 +330,12 @@ upload ()
   case $dest in
     alpha.gnu.org:*)
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg ncftpput ftp-upload.gnu.org /incoming/alpha $files $base.directive.asc
       ;;
     ftp.gnu.org:*)
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg ncftpput ftp-upload.gnu.org /incoming/ftp $files $base.directive.asc
       ;;
     savannah.gnu.org:*)
@@ -336,7 +354,7 @@ upload ()
       destdir_p1=`echo "$destdir" | sed 's,^[^/]*/,,'`
       destdir_topdir=`echo "$destdir" | sed 's,/.*,,'`
       mkdirective "$destdir_p1" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       for f in $files $base.directive.asc
       do
         echo put $f
@@ -345,7 +363,7 @@ upload ()
     /*)
       dest_host=`echo "$dest" | sed 's,:.*,,'`
       mkdirective "$destdir" "$base" "$file" "$stmt"
-      echo "$passphrase" | $dbg $GPG --passphrase-fd 0 --clearsign $base.directive
+      echo "$passphrase" | $dbg $GPG $passphrase_fd_0 --clearsign $base.directive
       $dbg cp $files $base.directive.asc $dest_host
       ;;
     *)
@@ -393,6 +411,12 @@ do
   do
     echo "Uploading $file to $dest ..."
     stmt=
+    #
+    # allowing file replacement is all or nothing.
+    if test -n "$replace"; then stmt="$stmt
+$replace"
+    fi
+    #
     files="$file $file.sig"
     destdir=`echo $dest | sed 's/[^:]*://'`
     if test -n "$symlink_expr"; then
@@ -411,6 +435,6 @@ exit 0
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/gnu-web-doc-update 4.6.21+20171216ss6cdfd-1/build-aux/gnu-web-doc-update
--- 4.6+git20120811-4/build-aux/gnu-web-doc-update	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/gnu-web-doc-update	2017-01-20 07:05:41.000000000 +0000
@@ -1,15 +1,10 @@
 #!/bin/sh
 # Run this after each non-alpha release, to update the web documentation at
 # http://www.gnu.org/software/$pkg/manual/
-# This script must be run from the top-level directory,
-# assumes you're using git for revision control,
-# and requires a .prev-version file as well as a Makefile,
-# from which it extracts the version number and package name, respectively.
-# Also, it assumes all documentation is in the doc/ sub-directory.
 
-VERSION=2009-07-21.16; # UTC
+VERSION=2016-01-12.23; # UTC
 
-# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,63 +19,135 @@ VERSION=2009-07-21.16; # UTC
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# Requirements: everything required to bootstrap your package,
-# plus these: git, cvs, cvsu, rsync, mktemp
-
-ME=`basename "$0"`
+ME=$(basename "$0")
 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
 die() { warn "$*"; exit 1; }
 
-help_version()
+help()
 {
-  case $1 in
-    --help) cat <<EOF
+  cat <<EOF
 Usage: $ME
 
-Run this script (no options or arguments) after each non-alpha release,
-to update the web documentation at http://www.gnu.org/software/\$pkg/manual/
-Run it from your project's the top-level directory.
+Run this script from top_srcdir (no arguments) after each non-alpha
+release, to update the web documentation at
+http://www.gnu.org/software/\$pkg/manual/
+
+This script assumes you're using git for revision control, and
+requires a .prev-version file as well as a Makefile, from which it
+extracts the version number and package name, respectively.  Also, it
+assumes all documentation is in the doc/ sub-directory.
 
 Options:
-  --help     print this help, then exit
-  --version  print version number, then exit
+  -C, --builddir=DIR  location of (configured) Makefile (default: .)
+  -n, --dry-run       don't actually commit anything
+  -m, --mirror        remove out of date files from document server
+  --help              print this help, then exit
+  --version           print version number, then exit
 
 Report bugs and patches to <bug-gnulib@gnu.org>.
 EOF
-      exit ;;
+  exit
+}
 
-    --version)
-      year=`echo "$VERSION" | sed 's/[^0-9].*//'`
-      cat <<EOF
+version()
+{
+  year=$(echo "$VERSION" | sed 's/[^0-9].*//')
+  cat <<EOF
 $ME $VERSION
 Copyright (C) $year Free Software Foundation, Inc,
 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
 EOF
-      exit ;;
+  exit
+}
 
-  *) die "unrecognized option: $1";;
-  esac
+# find_tool ENVVAR NAMES...
+# -------------------------
+# Search for a required program.  Use the value of ENVVAR, if set,
+# otherwise find the first of the NAMES that can be run (i.e.,
+# supports --version).  If found, set ENVVAR to the program name,
+# die otherwise.
+#
+# FIXME: code duplication, see also bootstrap.
+find_tool ()
+{
+  find_tool_envvar=$1
+  shift
+  find_tool_names=$@
+  eval "find_tool_res=\$$find_tool_envvar"
+  if test x"$find_tool_res" = x; then
+    for i
+    do
+      if ($i --version </dev/null) >/dev/null 2>&1; then
+       find_tool_res=$i
+       break
+      fi
+    done
+  else
+    find_tool_error_prefix="\$$find_tool_envvar: "
+  fi
+  test x"$find_tool_res" != x \
+    || die "one of these is required: $find_tool_names"
+  ($find_tool_res --version </dev/null) >/dev/null 2>&1 \
+    || die "${find_tool_error_prefix}cannot run $find_tool_res --version"
+  eval "$find_tool_envvar=\$find_tool_res"
+  eval "export $find_tool_envvar"
 }
 
-case $# in
-  0) ;;
-  1) help_version $1 ;;
-  *) die "$ME: too many options" ;;
-esac
+## ------ ##
+## Main.  ##
+## ------ ##
+
+# Requirements: everything required to bootstrap your package, plus
+# these.
+find_tool CVS cvs
+find_tool GIT git
+find_tool RSYNC rsync
+find_tool XARGS gxargs xargs
+
+builddir=.
+dryrun=
+rm_stale='echo'
+while test $# != 0
+do
+  # Handle --option=value by splitting apart and putting back on argv.
+  case $1 in
+    --*=*)
+      opt=$(echo "$1" | sed -e 's/=.*//')
+      val=$(echo "$1" | sed -e 's/[^=]*=//')
+      shift
+      set dummy "$opt" "$val" "$@"; shift
+      ;;
+  esac
+
+  case $1 in
+    --help|--version) ${1#--};;
+    -C|--builddir) shift; builddir=$1; shift ;;
+    -n|--dry-run) dryrun=echo; shift;;
+    -m|--mirror) rm_stale=''; shift;;
+    --*) die "unrecognized option: $1";;
+    *) break;;
+  esac
+done
+
+test $# = 0 \
+  || die "too many arguments"
 
 prev=.prev-version
-version=$(cat $prev) || die "$ME: no $prev file?"
-pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' Makefile) || die "$ME: no Makefile?"
+version=$(cat $prev) || die "no $prev file?"
+pkg=$(sed -n 's/^PACKAGE = \(.*\)/\1/p' $builddir/Makefile) \
+  || die "no Makefile?"
 tmp_branch=web-doc-$version-$$
+current_branch=$($GIT branch | sed -ne '/^\* /{s///;p;q;}')
 
 cleanup()
 {
-  __st=$?;
-  rm -rf "$tmp"
-  git checkout master
-  git branch -d $tmp_branch
+  __st=$?
+  $dryrun rm -rf "$tmp"
+  $GIT checkout "$current_branch"
+  $GIT submodule update --recursive
+  $GIT branch -d $tmp_branch
   exit $__st
 }
 trap cleanup 0
@@ -89,29 +156,55 @@ trap 'exit $?' 1 2 13 15
 # We must build using sources for which --version reports the
 # just-released version number, not some string like 7.6.18-20761.
 # That version string propagates into all documentation.
-git checkout -b $tmp_branch v$version
-ok=0
-./bootstrap && ./configure && make && make web-manual && ok=1
-test $ok = 1 || exit 1
+set -e
+$GIT checkout -b $tmp_branch v$version
+$GIT submodule update --recursive
+./bootstrap
+srcdir=$(pwd)
+cd "$builddir"
+builddir=$(pwd)
+  ./config.status --recheck
+  ./config.status
+  make
+  make web-manual
+cd "$srcdir"
+set +e
 
-tmp=$(mktemp -d --tmpdir=. web-doc-update.XXXXXX) || exit 1
+tmp=$(mktemp -d web-doc-update.XXXXXX) || exit 1
 ( cd $tmp \
-    && cvs -d $USER@cvs.sv.gnu.org:/webcvs/$pkg co $pkg )
-rsync -avP doc/manual/ $tmp/$pkg/manual
+    && $CVS -d $USER@cvs.sv.gnu.org:/webcvs/$pkg co $pkg )
+$RSYNC -avP "$builddir"/doc/manual/ $tmp/$pkg/manual
 
 (
   cd $tmp/$pkg/manual
 
-  # Add any new files:
-  cvsu --types='?'|sed s/..// | xargs --no-run-if-empty -- cvs add -ko
+  # Add all the files.  This is simpler than trying to add only the
+  # new ones because of new directories
+  # First add non empty dirs individually
+  find . -name CVS -prune -o -type d \! -empty -print             \
+    | $XARGS -n1 --no-run-if-empty -- $dryrun $CVS add -ko
+  # Now add all files
+  find . -name CVS -prune -o -type f -print             \
+    | $XARGS --no-run-if-empty -- $dryrun $CVS add -ko
+
+  # Report/Remove stale files
+  #   excluding doc server specific files like CVS/* and .symlinks
+  if test -n "$rm_stale"; then
+    echo 'Consider the --mirror option if all of the manual is generated,' >&2
+    echo 'which will run `cvs remove` to remove stale files.' >&2
+  fi
+  { find . \( -name CVS -o -type f -name '.*' \) -prune -o -type f -print
+    (cd "$builddir"/doc/manual/ && find . -type f -print | sed p)
+  } | sort | uniq -u \
+    | $XARGS --no-run-if-empty -- ${rm_stale:-$dryrun} $CVS remove -f
 
-  cvs ci -m $version
+  $dryrun $CVS ci -m $version
 )
 
 # Local variables:
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "VERSION="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/install-sh 4.6.21+20171216ss6cdfd-1/build-aux/install-sh
--- 4.6+git20120811-4/build-aux/install-sh	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/install-sh	2017-01-20 07:05:41.000000000 +0000
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2011-11-20.07; # UTC
+scriptversion=2016-01-11.22; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -41,19 +41,15 @@ scriptversion=2011-11-20.07; # UTC
 # This script is compatible with the BSD install script, but was written
 # from scratch.
 
+tab='	'
 nl='
 '
-IFS=" ""	$nl"
+IFS=" $tab$nl"
 
-# set DOITPROG to echo to test this script
+# Set DOITPROG to "echo" to test this script.
 
-# Don't use :- since 4.3BSD and earlier shells don't like it.
 doit=${DOITPROG-}
-if test -z "$doit"; then
-  doit_exec=exec
-else
-  doit_exec=$doit
-fi
+doit_exec=${doit:-exec}
 
 # Put in absolute file names if you don't have them in your path;
 # or use environment vars.
@@ -68,17 +64,6 @@ mvprog=${MVPROG-mv}
 rmprog=${RMPROG-rm}
 stripprog=${STRIPPROG-strip}
 
-posix_glob='?'
-initialize_posix_glob='
-  test "$posix_glob" != "?" || {
-    if (set -f) 2>/dev/null; then
-      posix_glob=
-    else
-      posix_glob=:
-    fi
-  }
-'
-
 posix_mkdir=
 
 # Desired mode of installed file.
@@ -97,7 +82,7 @@ dir_arg=
 dst_arg=
 
 copy_on_change=false
-no_target_directory=
+is_target_a_directory=possibly
 
 usage="\
 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
@@ -137,46 +122,57 @@ while test $# -ne 0; do
     -d) dir_arg=true;;
 
     -g) chgrpcmd="$chgrpprog $2"
-	shift;;
+        shift;;
 
     --help) echo "$usage"; exit $?;;
 
     -m) mode=$2
-	case $mode in
-	  *' '* | *'	'* | *'
-'*	  | *'*'* | *'?'* | *'['*)
-	    echo "$0: invalid mode: $mode" >&2
-	    exit 1;;
-	esac
-	shift;;
+        case $mode in
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
+            exit 1;;
+        esac
+        shift;;
 
     -o) chowncmd="$chownprog $2"
-	shift;;
+        shift;;
 
     -s) stripcmd=$stripprog;;
 
-    -t) dst_arg=$2
-	# Protect names problematic for 'test' and other utilities.
-	case $dst_arg in
-	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
-	esac
-	shift;;
+    -t)
+        is_target_a_directory=always
+        dst_arg=$2
+        # Protect names problematic for 'test' and other utilities.
+        case $dst_arg in
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
 
-    -T) no_target_directory=true;;
+    -T) is_target_a_directory=never;;
 
     --version) echo "$0 $scriptversion"; exit $?;;
 
-    --)	shift
-	break;;
+    --) shift
+        break;;
 
-    -*)	echo "$0: invalid option: $1" >&2
-	exit 1;;
+    -*) echo "$0: invalid option: $1" >&2
+        exit 1;;
 
     *)  break;;
   esac
   shift
 done
 
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
   # When -d is used, all remaining arguments are directories to create.
   # When -t is used, the destination is already specified.
@@ -208,6 +204,15 @@ if test $# -eq 0; then
 fi
 
 if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
+if test -z "$dir_arg"; then
   do_exit='(exit $ret); exit $ret'
   trap "ret=129; $do_exit" 1
   trap "ret=130; $do_exit" 2
@@ -223,16 +228,16 @@ if test -z "$dir_arg"; then
 
     *[0-7])
       if test -z "$stripcmd"; then
-	u_plus_rw=
+        u_plus_rw=
       else
-	u_plus_rw='% 200'
+        u_plus_rw='% 200'
       fi
       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
     *)
       if test -z "$stripcmd"; then
-	u_plus_rw=
+        u_plus_rw=
       else
-	u_plus_rw=,u+rw
+        u_plus_rw=,u+rw
       fi
       cp_umask=$mode$u_plus_rw;;
   esac
@@ -269,41 +274,15 @@ do
     # If destination is a directory, append the input filename; won't work
     # if double slashes aren't ignored.
     if test -d "$dst"; then
-      if test -n "$no_target_directory"; then
-	echo "$0: $dst_arg: Is a directory" >&2
-	exit 1
+      if test "$is_target_a_directory" = never; then
+        echo "$0: $dst_arg: Is a directory" >&2
+        exit 1
       fi
       dstdir=$dst
       dst=$dstdir/`basename "$src"`
       dstdir_status=0
     else
-      # Prefer dirname, but fall back on a substitute if dirname fails.
-      dstdir=`
-	(dirname "$dst") 2>/dev/null ||
-	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	     X"$dst" : 'X\(//\)[^/]' \| \
-	     X"$dst" : 'X\(//\)$' \| \
-	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
-	echo X"$dst" |
-	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)[^/].*/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\/\)$/{
-		   s//\1/
-		   q
-		 }
-		 /^X\(\/\).*/{
-		   s//\1/
-		   q
-		 }
-		 s/.*/./; q'
-      `
-
+      dstdir=`dirname "$dst"`
       test -d "$dstdir"
       dstdir_status=$?
     fi
@@ -314,74 +293,74 @@ do
   if test $dstdir_status != 0; then
     case $posix_mkdir in
       '')
-	# Create intermediate dirs using mode 755 as modified by the umask.
-	# This is like FreeBSD 'install' as of 1997-10-28.
-	umask=`umask`
-	case $stripcmd.$umask in
-	  # Optimize common cases.
-	  *[2367][2367]) mkdir_umask=$umask;;
-	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
-	  *[0-7])
-	    mkdir_umask=`expr $umask + 22 \
-	      - $umask % 100 % 40 + $umask % 20 \
-	      - $umask % 10 % 4 + $umask % 2
-	    `;;
-	  *) mkdir_umask=$umask,go-w;;
-	esac
-
-	# With -d, create the new directory with the user-specified mode.
-	# Otherwise, rely on $mkdir_umask.
-	if test -n "$dir_arg"; then
-	  mkdir_mode=-m$mode
-	else
-	  mkdir_mode=
-	fi
-
-	posix_mkdir=false
-	case $umask in
-	  *[123567][0-7][0-7])
-	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
-	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
-	    ;;
-	  *)
-	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
-
-	    if (umask $mkdir_umask &&
-		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
-	    then
-	      if test -z "$dir_arg" || {
-		   # Check for POSIX incompatibilities with -m.
-		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-		   # other-writable bit of parent directory when it shouldn't.
-		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
-		   case $ls_ld_tmpdir in
-		     d????-?r-*) different_mode=700;;
-		     d????-?--*) different_mode=755;;
-		     *) false;;
-		   esac &&
-		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
-		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
-		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-		   }
-		 }
-	      then posix_mkdir=:
-	      fi
-	      rmdir "$tmpdir/d" "$tmpdir"
-	    else
-	      # Remove any dirs left behind by ancient mkdir implementations.
-	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
-	    fi
-	    trap '' 0;;
-	esac;;
+        # Create intermediate dirs using mode 755 as modified by the umask.
+        # This is like FreeBSD 'install' as of 1997-10-28.
+        umask=`umask`
+        case $stripcmd.$umask in
+          # Optimize common cases.
+          *[2367][2367]) mkdir_umask=$umask;;
+          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+          *[0-7])
+            mkdir_umask=`expr $umask + 22 \
+              - $umask % 100 % 40 + $umask % 20 \
+              - $umask % 10 % 4 + $umask % 2
+            `;;
+          *) mkdir_umask=$umask,go-w;;
+        esac
+
+        # With -d, create the new directory with the user-specified mode.
+        # Otherwise, rely on $mkdir_umask.
+        if test -n "$dir_arg"; then
+          mkdir_mode=-m$mode
+        else
+          mkdir_mode=
+        fi
+
+        posix_mkdir=false
+        case $umask in
+          *[123567][0-7][0-7])
+            # POSIX mkdir -p sets u+wx bits regardless of umask, which
+            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+            ;;
+          *)
+            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+            trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+            if (umask $mkdir_umask &&
+                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+            then
+              if test -z "$dir_arg" || {
+                   # Check for POSIX incompatibilities with -m.
+                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+                   # other-writable bit of parent directory when it shouldn't.
+                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+                   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+                   case $ls_ld_tmpdir in
+                     d????-?r-*) different_mode=700;;
+                     d????-?--*) different_mode=755;;
+                     *) false;;
+                   esac &&
+                   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+                     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+                   }
+                 }
+              then posix_mkdir=:
+              fi
+              rmdir "$tmpdir/d" "$tmpdir"
+            else
+              # Remove any dirs left behind by ancient mkdir implementations.
+              rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+            fi
+            trap '' 0;;
+        esac;;
     esac
 
     if
       $posix_mkdir && (
-	umask $mkdir_umask &&
-	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+        umask $mkdir_umask &&
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
       )
     then :
     else
@@ -391,53 +370,51 @@ do
       # directory the slow way, step by step, checking for races as we go.
 
       case $dstdir in
-	/*) prefix='/';;
-	[-=\(\)!]*) prefix='./';;
-	*)  prefix='';;
+        /*) prefix='/';;
+        [-=\(\)!]*) prefix='./';;
+        *)  prefix='';;
       esac
 
-      eval "$initialize_posix_glob"
-
       oIFS=$IFS
       IFS=/
-      $posix_glob set -f
+      set -f
       set fnord $dstdir
       shift
-      $posix_glob set +f
+      set +f
       IFS=$oIFS
 
       prefixes=
 
       for d
       do
-	test X"$d" = X && continue
+        test X"$d" = X && continue
 
-	prefix=$prefix$d
-	if test -d "$prefix"; then
-	  prefixes=
-	else
-	  if $posix_mkdir; then
-	    (umask=$mkdir_umask &&
-	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-	    # Don't fail if two instances are running concurrently.
-	    test -d "$prefix" || exit 1
-	  else
-	    case $prefix in
-	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-	      *) qprefix=$prefix;;
-	    esac
-	    prefixes="$prefixes '$qprefix'"
-	  fi
-	fi
-	prefix=$prefix/
+        prefix=$prefix$d
+        if test -d "$prefix"; then
+          prefixes=
+        else
+          if $posix_mkdir; then
+            (umask=$mkdir_umask &&
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+            # Don't fail if two instances are running concurrently.
+            test -d "$prefix" || exit 1
+          else
+            case $prefix in
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *) qprefix=$prefix;;
+            esac
+            prefixes="$prefixes '$qprefix'"
+          fi
+        fi
+        prefix=$prefix/
       done
 
       if test -n "$prefixes"; then
-	# Don't fail if two instances are running concurrently.
-	(umask $mkdir_umask &&
-	 eval "\$doit_exec \$mkdirprog $prefixes") ||
-	  test -d "$dstdir" || exit 1
-	obsolete_mkdir_used=true
+        # Don't fail if two instances are running concurrently.
+        (umask $mkdir_umask &&
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
+          test -d "$dstdir" || exit 1
+        obsolete_mkdir_used=true
       fi
     fi
   fi
@@ -472,15 +449,12 @@ do
 
     # If -C, don't bother to copy if it wouldn't change the file.
     if $copy_on_change &&
-       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
-       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
-
-       eval "$initialize_posix_glob" &&
-       $posix_glob set -f &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
+       set -f &&
        set X $old && old=:$2:$4:$5:$6 &&
        set X $new && new=:$2:$4:$5:$6 &&
-       $posix_glob set +f &&
-
+       set +f &&
        test "$old" = "$new" &&
        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
     then
@@ -493,24 +467,24 @@ do
       # to itself, or perhaps because mv is so ancient that it does not
       # support -f.
       {
-	# Now remove or move aside any old file at destination location.
-	# We try this two ways since rm can't unlink itself on some
-	# systems and the destination file might be busy for other
-	# reasons.  In this case, the final cleanup might fail but the new
-	# file should still install successfully.
-	{
-	  test ! -f "$dst" ||
-	  $doit $rmcmd -f "$dst" 2>/dev/null ||
-	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
-	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
-	  } ||
-	  { echo "$0: cannot unlink or rename $dst" >&2
-	    (exit 1); exit 1
-	  }
-	} &&
+        # Now remove or move aside any old file at destination location.
+        # We try this two ways since rm can't unlink itself on some
+        # systems and the destination file might be busy for other
+        # reasons.  In this case, the final cleanup might fail but the new
+        # file should still install successfully.
+        {
+          test ! -f "$dst" ||
+          $doit $rmcmd -f "$dst" 2>/dev/null ||
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+          } ||
+          { echo "$0: cannot unlink or rename $dst" >&2
+            (exit 1); exit 1
+          }
+        } &&
 
-	# Now rename the file to the real destination.
-	$doit $mvcmd "$dsttmp" "$dst"
+        # Now rename the file to the real destination.
+        $doit $mvcmd "$dsttmp" "$dst"
       }
     fi || exit 1
 
@@ -522,6 +496,6 @@ done
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/mdate-sh 4.6.21+20171216ss6cdfd-1/build-aux/mdate-sh
--- 4.6+git20120811-4/build-aux/mdate-sh	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/mdate-sh	2017-01-20 07:05:41.000000000 +0000
@@ -1,10 +1,9 @@
 #!/bin/sh
 # Get modification time of a file or directory and pretty-print it.
 
-scriptversion=2010-08-21.06; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 1995, 1996, 1997, 2003, 2004, 2005, 2007, 2009, 2010
-# Free Software Foundation, Inc.
+# Copyright (C) 1995-2017 Free Software Foundation, Inc.
 # written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995
 #
 # This program is free software; you can redistribute it and/or modify
@@ -220,6 +219,6 @@ echo $day $month $year
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/missing 4.6.21+20171216ss6cdfd-1/build-aux/missing
--- 4.6+git20120811-4/build-aux/missing	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/missing	2017-12-17 00:27:14.000000000 +0000
@@ -1,11 +1,10 @@
 #! /bin/sh
-# Common stub for a few missing GNU programs while installing.
+# Common wrapper for a few potentially missing GNU programs.
 
-scriptversion=2012-01-06.18; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
-# 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
-# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -30,61 +29,33 @@ if test $# -eq 0; then
   exit 1
 fi
 
-run=:
-sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
-sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
-
-# In the cases where this matters, 'missing' is being run in the
-# srcdir already.
-if test -f configure.ac; then
-  configure_ac=configure.ac
-else
-  configure_ac=configure.in
-fi
+case $1 in
 
-msg="missing on your system"
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
 
-case $1 in
---run)
-  # Try to run requested program, and just exit if it succeeds.
-  run=
-  shift
-  "$@" && exit 0
-  # Exit code 63 means version mismatch.  This often happens
-  # when the user try to use an ancient version of a tool on
-  # a file that requires a minimum version.  In this case we
-  # we should proceed has if the program had been absent, or
-  # if --run hadn't been passed.
-  if test $? = 63; then
-    run=:
-    msg="probably too old"
-  fi
-  ;;
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
 
   -h|--h|--he|--hel|--help)
     echo "\
 $0 [OPTION]... PROGRAM [ARGUMENT]...
 
-Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
-error status if there is no known handling for PROGRAM.
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
 
 Options:
   -h, --help      display this help and exit
   -v, --version   output version information and exit
-  --run           try to run the given command, and emulate it if it fails
 
 Supported PROGRAM values:
-  aclocal      touch file 'aclocal.m4'
-  autoconf     touch file 'configure'
-  autoheader   touch file 'config.h.in'
-  autom4te     touch the output file, or create a stub one
-  automake     touch all 'Makefile.in' files
-  bison        create 'y.tab.[ch]', if possible, from existing .[ch]
-  flex         create 'lex.yy.c', if possible, from existing .c
-  help2man     touch the output file
-  lex          create 'lex.yy.c', if possible, from existing .c
-  makeinfo     touch the output file
-  yacc         create 'y.tab.[ch]', if possible, from existing .[ch]
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
 
 Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
 'g' are ignored when checking the name.
@@ -99,233 +70,146 @@ Send bug reports to <bug-automake@gnu.or
     ;;
 
   -*)
-    echo 1>&2 "$0: Unknown '$1' option"
+    echo 1>&2 "$0: unknown '$1' option"
     echo 1>&2 "Try '$0 --help' for more information"
     exit 1
     ;;
 
 esac
 
-# normalize program name to check for.
-program=`echo "$1" | sed '
-  s/^gnu-//; t
-  s/^gnu//; t
-  s/^g//; t'`
-
-# Now exit if we have it, but it failed.  Also exit now if we
-# don't have it and --version was passed (most likely to detect
-# the program).  This is about non-GNU programs, so use $1 not
-# $program.
-case $1 in
-  lex*|yacc*)
-    # Not GNU programs, they don't have --version.
-    ;;
+# Run the given program, remember its exit status.
+"$@"; st=$?
 
-  *)
-    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
-       # We have it, but it failed.
-       exit 1
-    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
-       # Could not run --version or --help.  This is probably someone
-       # running '$TOOL --version' or '$TOOL --help' to check whether
-       # $TOOL exists and not knowing $TOOL uses missing.
-       exit 1
-    fi
-    ;;
-esac
-
-# If it does not exist, or fails to run (possibly an outdated version),
-# try to emulate it.
-case $program in
-  aclocal*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified 'acinclude.m4' or '${configure_ac}'.  You might want
-         to install the Automake and Perl packages.  Grab them from
-         any GNU archive site."
-    touch aclocal.m4
-    ;;
-
-  autoconf*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified '${configure_ac}'.  You might want to install the
-         Autoconf and GNU m4 packages.  Grab them from any GNU
-         archive site."
-    touch configure
-    ;;
-
-  autoheader*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified 'acconfig.h' or '${configure_ac}'.  You might want
-         to install the Autoconf and GNU m4 packages.  Grab them
-         from any GNU archive site."
-    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
-    test -z "$files" && files="config.h"
-    touch_files=
-    for f in $files; do
-      case $f in
-      *:*) touch_files="$touch_files "`echo "$f" |
-				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
-      *) touch_files="$touch_files $f.in";;
-      esac
-    done
-    touch $touch_files
-    ;;
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
 
-  automake*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified 'Makefile.am', 'acinclude.m4' or '${configure_ac}'.
-         You might want to install the Automake and Perl packages.
-         Grab them from any GNU archive site."
-    find . -type f -name Makefile.am -print |
-	   sed 's/\.am$/.in/' |
-	   while read f; do touch "$f"; done
-    ;;
-
-  autom4te*)
-    echo 1>&2 "\
-WARNING: '$1' is needed, but is $msg.
-         You might have modified some files without having the
-         proper tools for further handling them.
-         You can get '$1' as part of Autoconf from any GNU
-         archive site."
-
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -f "$file"; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo "#! /bin/sh"
-	echo "# Created by GNU Automake missing as a replacement of"
-	echo "#  $ $@"
-	echo "exit 0"
-	chmod +x $file
-	exit 1
-    fi
-    ;;
-
-  bison*|yacc*)
-    echo 1>&2 "\
-WARNING: '$1' $msg.  You should only need it if
-         you modified a '.y' file.  You may need the Bison package
-         in order for those modifications to take effect.  You can get
-         Bison from any GNU archive site."
-    rm -f y.tab.c y.tab.h
-    if test $# -ne 1; then
-        eval LASTARG=\${$#}
-	case $LASTARG in
-	*.y)
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" y.tab.c
-	    fi
-	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" y.tab.h
-	    fi
-	  ;;
-	esac
-    fi
-    if test ! -f y.tab.h; then
-	echo >y.tab.h
-    fi
-    if test ! -f y.tab.c; then
-	echo 'main() { return 0; }' >y.tab.c
-    fi
-    ;;
-
-  lex*|flex*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified a '.l' file.  You may need the Flex package
-         in order for those modifications to take effect.  You can get
-         Flex from any GNU archive site."
-    rm -f lex.yy.c
-    if test $# -ne 1; then
-        eval LASTARG=\${$#}
-	case $LASTARG in
-	*.l)
-	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
-	    if test -f "$SRCFILE"; then
-	         cp "$SRCFILE" lex.yy.c
-	    fi
-	  ;;
-	esac
-    fi
-    if test ! -f lex.yy.c; then
-	echo 'main() { return 0; }' >lex.yy.c
-    fi
-    ;;
-
-  help2man*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-	 you modified a dependency of a manual page.  You may need the
-	 Help2man package in order for those modifications to take
-	 effect.  You can get Help2man from any GNU archive site."
-
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -f "$file"; then
-	touch $file
-    else
-	test -z "$file" || exec >$file
-	echo ".ab help2man is required to generate this page"
-	exit $?
-    fi
-    ;;
-
-  makeinfo*)
-    echo 1>&2 "\
-WARNING: '$1' is $msg.  You should only need it if
-         you modified a '.texi' or '.texinfo' file, or any other file
-         indirectly affecting the aspect of the manual.  The spurious
-         call might also be the consequence of using a buggy 'make' (AIX,
-         DU, IRIX).  You might want to install the Texinfo package or
-         the GNU make package.  Grab either from any GNU archive site."
-    # The file to touch is that specified with -o ...
-    file=`echo "$*" | sed -n "$sed_output"`
-    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
-    if test -z "$file"; then
-      # ... or it is the one specified with @setfilename ...
-      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
-      file=`sed -n '
-	/^@setfilename/{
-	  s/.* \([^ ]*\) *$/\1/
-	  p
-	  q
-	}' $infile`
-      # ... or it is derived from the source name (dir/f.texi becomes f.info)
-      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
-    fi
-    # If the file does not exist, the user really needs makeinfo;
-    # let's fail without touching anything.
-    test -f $file || exit 1
-    touch $file
-    ;;
-
-  *)
-    echo 1>&2 "\
-WARNING: '$1' is needed, and is $msg.
-         You might have modified some files without having the
-         proper tools for further handling them.  Check the 'README' file,
-         it often tells you about the needed prerequisites for installing
-         this package.  You may also peek at any GNU archive site, in case
-         some other package would contain this missing '$1' program."
-    exit 1
-    ;;
-esac
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
 
-exit 0
+perl_URL=http://www.perl.org/
+flex_URL=http://flex.sourceforge.net/
+gnu_software_URL=http://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'autom4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
 
 # Local variables:
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/snippet/arg-nonnull.h 4.6.21+20171216ss6cdfd-1/build-aux/snippet/arg-nonnull.h
--- 4.6+git20120811-4/build-aux/snippet/arg-nonnull.h	2013-07-05 20:39:23.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/snippet/arg-nonnull.h	2017-01-20 07:06:27.000000000 +0000
@@ -1,5 +1,5 @@
 /* A C macro for declaring that specific arguments must not be NULL.
-   Copyright (C) 2009-2012 Free Software Foundation, Inc.
+   Copyright (C) 2009-2017 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
diff -pruN 4.6+git20120811-4/build-aux/snippet/c++defs.h 4.6.21+20171216ss6cdfd-1/build-aux/snippet/c++defs.h
--- 4.6+git20120811-4/build-aux/snippet/c++defs.h	2013-07-05 20:39:23.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/snippet/c++defs.h	2017-01-20 07:06:27.000000000 +0000
@@ -1,5 +1,5 @@
 /* C++ compatible function declaration macros.
-   Copyright (C) 2010-2012 Free Software Foundation, Inc.
+   Copyright (C) 2010-2017 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
@@ -17,6 +17,15 @@
 #ifndef _GL_CXXDEFS_H
 #define _GL_CXXDEFS_H
 
+/* Begin/end the GNULIB_NAMESPACE namespace.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
 /* The three most frequent use cases of these macros are:
 
    * For providing a substitute for a function that is missing on some
@@ -111,14 +120,25 @@
    that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
    Example:
      _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
- */
+
+   Wrapping rpl_func in an object with an inline conversion operator
+   avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+   actually used in the program.  */
 #define _GL_CXXALIAS_RPL(func,rettype,parameters) \
   _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
 #if defined __cplusplus && defined GNULIB_NAMESPACE
 # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
     namespace GNULIB_NAMESPACE                                \
     {                                                         \
-      rettype (*const func) parameters = ::rpl_func;          \
+      static const struct _gl_ ## func ## _wrapper            \
+      {                                                       \
+        typedef rettype (*type) parameters;                   \
+                                                              \
+        inline operator type () const                         \
+        {                                                     \
+          return ::rpl_func;                                  \
+        }                                                     \
+      } func = {};                                            \
     }                                                         \
     _GL_EXTERN_C int _gl_cxxalias_dummy
 #else
@@ -135,8 +155,15 @@
 # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
     namespace GNULIB_NAMESPACE                                     \
     {                                                              \
-      rettype (*const func) parameters =                           \
-        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
+      static const struct _gl_ ## func ## _wrapper                 \
+      {                                                            \
+        typedef rettype (*type) parameters;                        \
+                                                                   \
+        inline operator type () const                              \
+        {                                                          \
+          return reinterpret_cast<type>(::rpl_func);               \
+        }                                                          \
+      } func = {};                                                 \
     }                                                              \
     _GL_EXTERN_C int _gl_cxxalias_dummy
 #else
@@ -150,19 +177,24 @@
    is defined.
    Example:
      _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
- */
+
+   Wrapping func in an object with an inline conversion operator
+   avoids a reference to func unless GNULIB_NAMESPACE::func is
+   actually used in the program.  */
 #if defined __cplusplus && defined GNULIB_NAMESPACE
-  /* If we were to write
-       rettype (*const func) parameters = ::func;
-     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
-     better (remove an indirection through a 'static' pointer variable),
-     but then the _GL_CXXALIASWARN macro below would cause a warning not only
-     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
-# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                     \
-    {                                              \
-      static rettype (*func) parameters = ::func;  \
-    }                                              \
+# define _GL_CXXALIAS_SYS(func,rettype,parameters)            \
+    namespace GNULIB_NAMESPACE                                \
+    {                                                         \
+      static const struct _gl_ ## func ## _wrapper            \
+      {                                                       \
+        typedef rettype (*type) parameters;                   \
+                                                              \
+        inline operator type () const                         \
+        {                                                     \
+          return ::func;                                      \
+        }                                                     \
+      } func = {};                                            \
+    }                                                         \
     _GL_EXTERN_C int _gl_cxxalias_dummy
 #else
 # define _GL_CXXALIAS_SYS(func,rettype,parameters) \
@@ -178,8 +210,15 @@
 # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
     namespace GNULIB_NAMESPACE                          \
     {                                                   \
-      static rettype (*func) parameters =               \
-        reinterpret_cast<rettype(*)parameters>(::func); \
+      static const struct _gl_ ## func ## _wrapper      \
+      {                                                 \
+        typedef rettype (*type) parameters;             \
+                                                        \
+        inline operator type () const                   \
+        {                                               \
+          return reinterpret_cast<type>(::func);        \
+        }                                               \
+      } func = {};                                      \
     }                                                   \
     _GL_EXTERN_C int _gl_cxxalias_dummy
 #else
@@ -202,9 +241,15 @@
 # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
     namespace GNULIB_NAMESPACE                                                \
     {                                                                         \
-      static rettype (*func) parameters =                                     \
-        reinterpret_cast<rettype(*)parameters>(                               \
-          (rettype2(*)parameters2)(::func));                                  \
+      static const struct _gl_ ## func ## _wrapper                            \
+      {                                                                       \
+        typedef rettype (*type) parameters;                                   \
+                                                                              \
+        inline operator type () const                                         \
+        {                                                                     \
+          return reinterpret_cast<type>((rettype2 (*) parameters2)(::func));  \
+        }                                                                     \
+      } func = {};                                                            \
     }                                                                         \
     _GL_EXTERN_C int _gl_cxxalias_dummy
 #else
diff -pruN 4.6+git20120811-4/build-aux/snippet/_Noreturn.h 4.6.21+20171216ss6cdfd-1/build-aux/snippet/_Noreturn.h
--- 4.6+git20120811-4/build-aux/snippet/_Noreturn.h	2013-07-05 20:39:23.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/snippet/_Noreturn.h	2017-01-20 06:51:45.000000000 +0000
@@ -1,4 +1,4 @@
-#ifndef _Noreturn
+#if !defined _Noreturn && __STDC_VERSION__ < 201112
 # if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
       || 0x5110 <= __SUNPRO_C)
 #  define _Noreturn __attribute__ ((__noreturn__))
diff -pruN 4.6+git20120811-4/build-aux/snippet/unused-parameter.h 4.6.21+20171216ss6cdfd-1/build-aux/snippet/unused-parameter.h
--- 4.6+git20120811-4/build-aux/snippet/unused-parameter.h	1970-01-01 00:00:00.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/snippet/unused-parameter.h	2017-01-20 07:06:27.000000000 +0000
@@ -0,0 +1,36 @@
+/* A C macro for declaring that specific function parameters are not used.
+   Copyright (C) 2008-2017 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter
+   declarations for parameters that are not used.  This helps to reduce
+   warnings, such as from GCC -Wunused-parameter.  The syntax is as follows:
+       type param _GL_UNUSED_PARAMETER
+   or more generally
+       param_decl _GL_UNUSED_PARAMETER
+   For example:
+       int param _GL_UNUSED_PARAMETER
+       int *(*param)(void) _GL_UNUSED_PARAMETER
+   Other possible, but obscure and discouraged syntaxes:
+       int _GL_UNUSED_PARAMETER *(*param)(void)
+       _GL_UNUSED_PARAMETER int *(*param)(void)
+ */
+#ifndef _GL_UNUSED_PARAMETER
+# if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+#  define _GL_UNUSED_PARAMETER __attribute__ ((__unused__))
+# else
+#  define _GL_UNUSED_PARAMETER
+# endif
+#endif
diff -pruN 4.6+git20120811-4/build-aux/snippet/warn-on-use.h 4.6.21+20171216ss6cdfd-1/build-aux/snippet/warn-on-use.h
--- 4.6+git20120811-4/build-aux/snippet/warn-on-use.h	2013-07-05 20:39:23.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/snippet/warn-on-use.h	2017-01-20 07:06:27.000000000 +0000
@@ -1,5 +1,5 @@
 /* A C macro for emitting warnings if a function is used.
-   Copyright (C) 2010-2012 Free Software Foundation, Inc.
+   Copyright (C) 2010-2017 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
@@ -55,7 +55,7 @@
    rather than issue the nice warning, but the end result of informing
    the developer about their portability problem is still achieved):
    #if HAVE_RAW_DECL_ENVIRON
-   static inline char ***rpl_environ (void) { return &environ; }
+   static char ***rpl_environ (void) { return &environ; }
    _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
    # undef environ
    # define environ (*rpl_environ ())
diff -pruN 4.6+git20120811-4/build-aux/test-driver 4.6.21+20171216ss6cdfd-1/build-aux/test-driver
--- 4.6+git20120811-4/build-aux/test-driver	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/test-driver	2017-12-17 00:27:14.000000000 +0000
@@ -1,9 +1,9 @@
 #! /bin/sh
-# test-driver - basic driver script for the `parallel-tests' mode.
+# test-driver - basic testsuite driver script.
 
-scriptversion=2011-08-17.14; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 2011 Free Software Foundation, Inc.
+# Copyright (C) 2011-2017 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -44,13 +44,12 @@ print_usage ()
 Usage:
   test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
               [--expect-failure={yes|no}] [--color-tests={yes|no}]
-              [--enable-hard-errors={yes|no}] [--] TEST-SCRIPT
-The \`--test-name', \`--log-file' and \`--trs-file' options are mandatory.
+              [--enable-hard-errors={yes|no}] [--]
+              TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
+The '--test-name', '--log-file' and '--trs-file' options are mandatory.
 END
 }
 
-# TODO: better error handling in option parsing (in particular, ensure
-# TODO: $log_file, $trs_file and $test_name are defined).
 test_name= # Used for reporting.
 log_file=  # Where to save the output of the test script.
 trs_file=  # Where to save the metadata of the test run.
@@ -69,12 +68,25 @@ while test $# -gt 0; do
   --enable-hard-errors) enable_hard_errors=$2; shift;;
   --) shift; break;;
   -*) usage_error "invalid option: '$1'";;
+   *) break;;
   esac
   shift
 done
 
+missing_opts=
+test x"$test_name" = x && missing_opts="$missing_opts --test-name"
+test x"$log_file"  = x && missing_opts="$missing_opts --log-file"
+test x"$trs_file"  = x && missing_opts="$missing_opts --trs-file"
+if test x"$missing_opts" != x; then
+  usage_error "the following mandatory options are missing:$missing_opts"
+fi
+
+if test $# -eq 0; then
+  usage_error "missing argument"
+fi
+
 if test $color_tests = yes; then
-  # Keep this in sync with `lib/am/check.am:$(am__tty_colors)'.
+  # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
   red='[0;31m' # Red.
   grn='[0;32m' # Green.
   lgn='[1;32m' # Light green.
@@ -94,11 +106,14 @@ trap "st=143; $do_exit" 15
 # Test script is run here.
 "$@" >$log_file 2>&1
 estatus=$?
+
 if test $enable_hard_errors = no && test $estatus -eq 99; then
-  estatus=1
+  tweaked_estatus=1
+else
+  tweaked_estatus=$estatus
 fi
 
-case $estatus:$expect_failure in
+case $tweaked_estatus:$expect_failure in
   0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
   0:*)   col=$grn res=PASS  recheck=no  gcopy=no;;
   77:*)  col=$blu res=SKIP  recheck=no  gcopy=yes;;
@@ -107,6 +122,12 @@ case $estatus:$expect_failure in
   *:*)   col=$red res=FAIL  recheck=yes gcopy=yes;;
 esac
 
+# Report the test outcome and exit status in the logs, so that one can
+# know whether the test passed or failed simply by looking at the '.log'
+# file, without the need of also peaking into the corresponding '.trs'
+# file (automake bug#11814).
+echo "$res $test_name (exit status: $estatus)" >>$log_file
+
 # Report outcome to console.
 echo "${col}${res}${std}: $test_name"
 
@@ -122,6 +143,6 @@ echo ":copy-in-global-log: $gcopy" >> $t
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/texinfo.tex 4.6.21+20171216ss6cdfd-1/build-aux/texinfo.tex
--- 4.6+git20120811-4/build-aux/texinfo.tex	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/texinfo.tex	2017-01-20 07:05:41.000000000 +0000
@@ -3,11 +3,12 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2012-01-19.16}
+\def\texinfoversion{2017-01-14.15}
 %
 % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-% 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+% 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
+% Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
 % modify it under the terms of the GNU General Public License as
@@ -24,13 +25,14 @@
 %
 % As a special exception, when this file is read by TeX when processing
 % a Texinfo source document, you may use the result without
-% restriction.  (This has been our intent since Texinfo was invented.)
+% restriction. This Exception is an additional permission under section 7
+% of the GNU General Public License, version 3 ("GPLv3").
 %
 % Please try the latest version of texinfo.tex before submitting bug
 % reports; you can get the latest version from:
-%   http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
-%   ftp://tug.org/tex/texinfo.tex
-%     (and all CTAN mirrors, see http://www.ctan.org).
+%   http://ftp.gnu.org/gnu/texinfo/ (the Texinfo release area), or
+%   http://ftpmirror.gnu.org/texinfo/ (same, via a mirror), or
+%   http://www.gnu.org/software/texinfo/ (the Texinfo home page)
 % The texinfo.tex in any given distribution could well be out
 % of date, so if that's what you're using, please check.
 %
@@ -65,6 +67,10 @@
 \everyjob{\message{[Texinfo version \texinfoversion]}%
   \catcode`+=\active \catcode`\_=\active}
 
+% LaTeX's \typeout.  This ensures that the messages it is used for
+% are identical in format to the corresponding ones from latex/pdflatex.
+\def\typeout{\immediate\write17}%
+
 \chardef\other=12
 
 % We never want plain's \outer definition of \+ in Texinfo.
@@ -95,7 +101,9 @@
 \let\ptexraggedright=\raggedright
 \let\ptexrbrace=\}
 \let\ptexslash=\/
+\let\ptexsp=\sp
 \let\ptexstar=\*
+\let\ptexsup=\sup
 \let\ptext=\t
 \let\ptextop=\top
 {\catcode`\'=\active \global\let\ptexquoteright'}% active in plain's math mode
@@ -154,22 +162,13 @@
 \ifx\putwordDefopt\undefined    \gdef\putwordDefopt{User Option}\fi
 \ifx\putwordDeffunc\undefined   \gdef\putwordDeffunc{Function}\fi
 
-% Since the category of space is not known, we have to be careful.
-\chardef\spacecat = 10
-\def\spaceisspace{\catcode`\ =\spacecat}
-
-% sometimes characters are active, so we need control sequences.
-\chardef\ampChar   = `\&
-\chardef\colonChar = `\:
-\chardef\commaChar = `\,
+% Give the space character the catcode for a space.
+\def\spaceisspace{\catcode`\ =10\relax}
+
+% Likewise for ^^M, the end of line character.
+\def\endlineisspace{\catcode13=10\relax}
+
 \chardef\dashChar  = `\-
-\chardef\dotChar   = `\.
-\chardef\exclamChar= `\!
-\chardef\hashChar  = `\#
-\chardef\lquoteChar= `\`
-\chardef\questChar = `\?
-\chardef\rquoteChar= `\'
-\chardef\semiChar  = `\;
 \chardef\slashChar = `\/
 \chardef\underChar = `\_
 
@@ -192,17 +191,6 @@
   wide-spread wrap-around
 }
 
-% Margin to add to right of even pages, to left of odd pages.
-\newdimen\bindingoffset
-\newdimen\normaloffset
-\newdimen\pagewidth \newdimen\pageheight
-
-% For a final copy, take out the rectangles
-% that mark overfull boxes (in case you have decided
-% that the text looks ok even though it passes the margin).
-%
-\def\finalout{\overfullrule=0pt }
-
 % Sometimes it is convenient to have everything in the transcript file
 % and nothing on the terminal.  We don't just call \tracingall here,
 % since that produces some useless output on the terminal.  We also make
@@ -247,6 +235,15 @@
 \def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
   \removelastskip\penalty-200\bigskip\fi\fi}
 
+% Output routine
+%
+
+% For a final copy, take out the rectangles
+% that mark overfull boxes (in case you have decided
+% that the text looks ok even though it passes the margin).
+%
+\def\finalout{\overfullrule=0pt }
+
 % Do @cropmarks to get crop marks.
 %
 \newif\ifcropmarks
@@ -269,10 +266,18 @@
 %
 % Another complication is to let the user choose whether \thischapter
 % (\thissection) refers to the chapter (section) in effect at the top
-% of a page, or that at the bottom of a page.  The solution is
-% described on page 260 of The TeXbook.  It involves outputting two
-% marks for the sectioning macros, one before the section break, and
-% one after.  I won't pretend I can describe this better than DEK...
+% of a page, or that at the bottom of a page.
+
+% \domark is called twice inside \chapmacro, to add one
+% mark before the section break, and one after.
+%   In the second call \prevchapterdefs is the same as \lastchapterdefs,
+% and \prevsectiondefs is the same as \lastsectiondefs.
+%   Then if the page is not broken at the mark, some of the previous
+% section appears on the page, and we can get the name of this section
+% from \firstmark for @everyheadingmarks top.
+%   @everyheadingmarks bottom uses \botmark.
+%
+% See page 260 of The TeXbook.
 \def\domark{%
   \toks0=\expandafter{\lastchapterdefs}%
   \toks2=\expandafter{\lastsectiondefs}%
@@ -280,11 +285,15 @@
   \toks6=\expandafter{\prevsectiondefs}%
   \toks8=\expandafter{\lastcolordefs}%
   \mark{%
-                   \the\toks0 \the\toks2
-      \noexpand\or \the\toks4 \the\toks6
-    \noexpand\else \the\toks8
+                   \the\toks0 \the\toks2  % 0: marks for @everyheadingmarks top
+      \noexpand\or \the\toks4 \the\toks6  % 1: for @everyheadingmarks bottom
+    \noexpand\else \the\toks8             % 2: color marks
   }%
 }
+
+% \gettopheadingmarks, \getbottomheadingmarks,
+% \getcolormarks - extract needed part of mark.
+%
 % \topmark doesn't work for the very first chapter (after the title
 % page or the contents), so we use \firstmark there -- this gets us
 % the mark with the chapter defs, unless the user sneaks in, e.g.,
@@ -300,33 +309,67 @@
 % Avoid "undefined control sequence" errors.
 \def\lastchapterdefs{}
 \def\lastsectiondefs{}
+\def\lastsection{}
 \def\prevchapterdefs{}
 \def\prevsectiondefs{}
 \def\lastcolordefs{}
 
+% Margin to add to right of even pages, to left of odd pages.
+\newdimen\bindingoffset
+\newdimen\normaloffset
+\newdimen\txipagewidth \newdimen\txipageheight
+
 % Main output routine.
+%
 \chardef\PAGE = 255
 \output = {\onepageout{\pagecontents\PAGE}}
 
 \newbox\headlinebox
 \newbox\footlinebox
 
-% \onepageout takes a vbox as an argument.  Note that \pagecontents
-% does insertions, but you have to call it yourself.
+% \onepageout takes a vbox as an argument.
+% \shipout a vbox for a single page, adding an optional header, footer,
+% cropmarks, and footnote.  This also causes index entries for this page
+% to be written to the auxiliary files.
+%
 \def\onepageout#1{%
   \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
   %
   \ifodd\pageno  \advance\hoffset by \bindingoffset
   \else \advance\hoffset by -\bindingoffset\fi
   %
+  % Common context changes for both heading and footing.
   % Do this outside of the \shipout so @code etc. will be expanded in
   % the headline as they should be, not taken literally (outputting ''code).
+  \def\commmonheadfootline{\let\hsize=\txipagewidth \texinfochars}
+  %
+  % Retrieve the information for the headings from the marks in the page,
+  % and call Plain TeX's \makeheadline and \makefootline, which use the
+  % values in \headline and \footline.
+  %
+  % This is used to check if we are on the first page of a chapter.
+  \ifcase1\topmark\fi
+  \let\prevchaptername\thischaptername
+  \ifcase0\firstmark\fi
+  \let\curchaptername\thischaptername
+  %
   \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi
-  \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
   \ifodd\pageno \getoddfootingmarks \else \getevenfootingmarks \fi
-  \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
+  %
+  \ifx\curchaptername\prevchaptername
+    \let\thischapterheading\thischapter
+  \else
+    % \thischapterheading is the same as \thischapter except it is blank
+    % for the first page of a chapter.  This is to prevent the chapter name 
+    % being shown twice.
+    \def\thischapterheading{}%
+  \fi
+  %
+  \global\setbox\headlinebox = \vbox{\commmonheadfootline \makeheadline}%
+  \global\setbox\footlinebox = \vbox{\commmonheadfootline \makefootline}%
   %
   {%
+    % Set context for writing to auxiliary files like index files.
     % Have to do this stuff outside the \shipout because we want it to
     % take effect in \write's, yet the group defined by the \vbox ends
     % before the \shipout runs.
@@ -335,10 +378,10 @@
     \normalturnoffactive  % \ in index entries must not stay \, e.g., if
                % the page break happens to be in the middle of an example.
                % We don't want .vr (or whatever) entries like this:
-               % \entry{{\tt \indexbackslash }acronym}{32}{\code {\acronym}}
+               % \entry{{\indexbackslash }acronym}{32}{\code {\acronym}}
                % "\acronym" won't work when it's read back in;
                % it needs to be
-               % {\code {{\tt \backslashcurfont }acronym}
+               % {\code {{\backslashcurfont }acronym}
     \shipout\vbox{%
       % Do this early so pdf references go to the beginning of the page.
       \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
@@ -396,7 +439,8 @@
 
 \newinsert\margin \dimen\margin=\maxdimen
 
-\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
+% Main part of page, including any footnotes
+\def\pagebody#1{\vbox to\txipageheight{\boxmaxdepth=\maxdepth #1}}
 {\catcode`\@ =11
 \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
 % marginal hacks, juha@viisa.uucp (Juha Takala)
@@ -418,9 +462,13 @@
 \def\nsbot{\vbox
   {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
 
+
+% Argument parsing
+
 % Parse an argument, then pass it to #1.  The argument is the rest of
 % the input line (except we remove a trailing comment).  #1 should be a
 % macro which expects an ordinary undelimited TeX argument.
+% For example, \def\foo{\parsearg\fooxxx}.
 %
 \def\parsearg{\parseargusing{}}
 \def\parseargusing#1#2{%
@@ -439,9 +487,11 @@
   }%
 }
 
-% First remove any @comment, then any @c comment.
+% First remove any @comment, then any @c comment.  Also remove a @texinfoc
+% comment (see \scanmacro for details).  Pass the result on to \argcheckspaces.
 \def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
-\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
+\def\argremovec#1\c#2\ArgTerm{\argremovetexinfoc #1\texinfoc\ArgTerm}
+\def\argremovetexinfoc#1\texinfoc#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
 
 % Each occurrence of `\^^M' or `<space>\^^M' is replaced by a single space.
 %
@@ -476,14 +526,13 @@
 %
 \def\finishparsearg#1 \ArgTerm{\expandafter\argtorun\expandafter{#1}}
 
+
+% \parseargdef - define a command taking an argument on the line
+%
 % \parseargdef\foo{...}
 %	is roughly equivalent to
 % \def\foo{\parsearg\Xfoo}
 % \def\Xfoo#1{...}
-%
-% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
-% favourite TeX trick.  --kasal, 16nov03
-
 \def\parseargdef#1{%
   \expandafter \doparseargdef \csname\string#1\endcsname #1%
 }
@@ -594,7 +643,7 @@
 \def\:{\spacefactor=1000 }
 
 % @* forces a line break.
-\def\*{\hfil\break\hbox{}\ignorespaces}
+\def\*{\unskip\hfil\break\hbox{}\ignorespaces}
 
 % @/ allows a line break.
 \let\/=\allowbreak
@@ -673,21 +722,26 @@
     \endgraf % Not \par, as it may have been set to \lisppar.
     \global\dimen1 = \prevdepth
   \egroup           % End the \vtop.
+  \addgroupbox
+  \prevdepth = \dimen1
+  \checkinserts
+}
+
+\def\addgroupbox{
   % \dimen0 is the vertical size of the group's box.
   \dimen0 = \ht\groupbox  \advance\dimen0 by \dp\groupbox
   % \dimen2 is how much space is left on the page (more or less).
-  \dimen2 = \pageheight   \advance\dimen2 by -\pagetotal
+  \dimen2 = \txipageheight   \advance\dimen2 by -\pagetotal
   % if the group doesn't fit on the current page, and it's a big big
   % group, force a page break.
   \ifdim \dimen0 > \dimen2
-    \ifdim \pagetotal < \vfilllimit\pageheight
+    \ifdim \pagetotal < \vfilllimit\txipageheight
       \page
     \fi
   \fi
   \box\groupbox
-  \prevdepth = \dimen1
-  \checkinserts
 }
+
 %
 % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
 % message, so this ends up printing `@group can only ...'.
@@ -811,36 +865,6 @@ where each line of input produces a line
   \temp
 }
 
-% @| inserts a changebar to the left of the current line.  It should
-% surround any changed text.  This approach does *not* work if the
-% change spans more than two lines of output.  To handle that, we would
-% have adopt a much more difficult approach (putting marks into the main
-% vertical list for the beginning and end of each change).  This command
-% is not documented, not supported, and doesn't work.
-%
-\def\|{%
-  % \vadjust can only be used in horizontal mode.
-  \leavevmode
-  %
-  % Append this vertical mode material after the current line in the output.
-  \vadjust{%
-    % We want to insert a rule with the height and depth of the current
-    % leading; that is exactly what \strutbox is supposed to record.
-    \vskip-\baselineskip
-    %
-    % \vadjust-items are inserted at the left edge of the type.  So
-    % the \llap here moves out into the left-hand margin.
-    \llap{%
-      %
-      % For a thicker or thinner bar, change the `1pt'.
-      \vrule height\baselineskip width1pt
-      %
-      % This is the space between the bar and the text.
-      \hskip 12pt
-    }%
-  }%
-}
-
 % @include FILE -- \input text of FILE.
 %
 \def\include{\parseargusing\filenamecatcodes\includezzz}
@@ -887,7 +911,7 @@ where each line of input produces a line
 \def\popthisfilestack{\errthisfilestackempty}
 \def\errthisfilestackempty{\errmessage{Internal error:
   the stack of filenames is empty.}}
-
+%
 \def\thisfile{}
 
 % @center line
@@ -895,37 +919,48 @@ where each line of input produces a line
 %
 \parseargdef\center{%
   \ifhmode
-    \let\next\centerH
+    \let\centersub\centerH
   \else
-    \let\next\centerV
+    \let\centersub\centerV
   \fi
-  \next{\hfil \ignorespaces#1\unskip \hfil}%
+  \centersub{\hfil \ignorespaces#1\unskip \hfil}%
+  \let\centersub\relax % don't let the definition persist, just in case
 }
-\def\centerH#1{%
-  {%
-    \hfil\break
-    \advance\hsize by -\leftskip
-    \advance\hsize by -\rightskip
-    \line{#1}%
-    \break
-  }%
+\def\centerH#1{{%
+  \hfil\break
+  \advance\hsize by -\leftskip
+  \advance\hsize by -\rightskip
+  \line{#1}%
+  \break
+}}
+%
+\newcount\centerpenalty
+\def\centerV#1{%
+  % The idea here is the same as in \startdefun, \cartouche, etc.: if
+  % @center is the first thing after a section heading, we need to wipe
+  % out the negative parskip inserted by \sectionheading, but still
+  % prevent a page break here.
+  \centerpenalty = \lastpenalty
+  \ifnum\centerpenalty>10000 \vskip\parskip \fi
+  \ifnum\centerpenalty>9999 \penalty\centerpenalty \fi
+  \line{\kern\leftskip #1\kern\rightskip}%
 }
-\def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}}
 
 % @sp n   outputs n lines of vertical space
-
+%
 \parseargdef\sp{\vskip #1\baselineskip}
 
 % @comment ...line which is ignored...
 % @c is the same as @comment
 % @ignore ... @end ignore  is another way to write a comment
 
-\def\comment{\begingroup \catcode`\^^M=\other%
-\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
-\commentxxx}
-{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
 
-\let\c=\comment
+\def\c{\begingroup \catcode`\^^M=\active%
+\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
+\cxxx}
+{\catcode`\^^M=\active \gdef\cxxx#1^^M{\endgroup}}
+%
+\let\comment\c
 
 % @paragraphindent NCHARS
 % We'll use ems for NCHARS, close enough.
@@ -996,69 +1031,23 @@ where each line of input produces a line
 % paragraph.
 %
 \gdef\dosuppressfirstparagraphindent{%
-  \gdef\indent{%
-    \restorefirstparagraphindent
-    \indent
-  }%
-  \gdef\noindent{%
-    \restorefirstparagraphindent
-    \noindent
-  }%
-  \global\everypar = {%
-    \kern -\parindent
-    \restorefirstparagraphindent
-  }%
+  \gdef\indent  {\restorefirstparagraphindent \indent}%
+  \gdef\noindent{\restorefirstparagraphindent \noindent}%
+  \global\everypar = {\kern -\parindent \restorefirstparagraphindent}%
 }
-
+%
 \gdef\restorefirstparagraphindent{%
-  \global \let \indent = \ptexindent
-  \global \let \noindent = \ptexnoindent
-  \global \everypar = {}%
+  \global\let\indent = \ptexindent
+  \global\let\noindent = \ptexnoindent
+  \global\everypar = {}%
 }
 
 
 % @refill is a no-op.
 \let\refill=\relax
 
-% If working on a large document in chapters, it is convenient to
-% be able to disable indexing, cross-referencing, and contents, for test runs.
-% This is done with @novalidate (before @setfilename).
-%
-\newif\iflinks \linkstrue % by default we want the aux files.
-\let\novalidate = \linksfalse
-
-% @setfilename is done at the beginning of every texinfo file.
-% So open here the files we need to have open while reading the input.
-% This makes it possible to make a .fmt file for texinfo.
-\def\setfilename{%
-   \fixbackslash  % Turn off hack to swallow `\input texinfo'.
-   \iflinks
-     \tryauxfile
-     % Open the new aux file.  TeX will close it automatically at exit.
-     \immediate\openout\auxfile=\jobname.aux
-   \fi % \openindices needs to do some work in any case.
-   \openindices
-   \let\setfilename=\comment % Ignore extra @setfilename cmds.
-   %
-   % If texinfo.cnf is present on the system, read it.
-   % Useful for site-wide @afourpaper, etc.
-   \openin 1 texinfo.cnf
-   \ifeof 1 \else \input texinfo.cnf \fi
-   \closein 1
-   %
-   \comment % Ignore the actual filename.
-}
-
-% Called from \setfilename.
-%
-\def\openindices{%
-  \newindex{cp}%
-  \newcodeindex{fn}%
-  \newcodeindex{vr}%
-  \newcodeindex{tp}%
-  \newcodeindex{ky}%
-  \newcodeindex{pg}%
-}
+% @setfilename INFO-FILENAME - ignored
+\let\setfilename=\comment
 
 % @bye.
 \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
@@ -1076,10 +1065,91 @@ where each line of input produces a line
 \newtoks\toksC
 \newtoks\toksD
 \newbox\boxA
+\newbox\boxB
 \newcount\countA
 \newif\ifpdf
 \newif\ifpdfmakepagedest
 
+%
+% For LuaTeX
+%
+
+\newif\iftxiuseunicodedestname
+\txiuseunicodedestnamefalse % For pdfTeX etc.
+
+\ifx\luatexversion\thisisundefined
+\else
+  % Use Unicode destination names
+  \txiuseunicodedestnametrue
+  % Escape PDF strings with converting UTF-16 from UTF-8
+  \begingroup
+    \catcode`\%=12
+    \directlua{
+      function UTF16oct(str)
+        tex.sprint(string.char(0x5c) .. '376' .. string.char(0x5c) .. '377')
+        for c in string.utfvalues(str) do
+          if c < 0x10000 then
+            tex.sprint(
+              string.format(string.char(0x5c) .. string.char(0x25) .. '03o' ..
+                            string.char(0x5c) .. string.char(0x25) .. '03o',
+                            (c / 256), (c % 256)))
+          else
+            c = c - 0x10000
+            local c_hi = c / 1024 + 0xd800
+            local c_lo = c % 1024 + 0xdc00
+            tex.sprint(
+              string.format(string.char(0x5c) .. string.char(0x25) .. '03o' ..
+                            string.char(0x5c) .. string.char(0x25) .. '03o' ..
+                            string.char(0x5c) .. string.char(0x25) .. '03o' ..
+                            string.char(0x5c) .. string.char(0x25) .. '03o',
+                            (c_hi / 256), (c_hi % 256),
+                            (c_lo / 256), (c_lo % 256)))
+          end
+        end
+      end
+    }
+  \endgroup
+  \def\pdfescapestrutfsixteen#1{\directlua{UTF16oct('\luaescapestring{#1}')}}
+  % Escape PDF strings without converting
+  \begingroup
+    \directlua{
+      function PDFescstr(str)
+        for c in string.bytes(str) do
+          if c <= 0x20 or c >= 0x80 or c == 0x28 or c == 0x29 or c == 0x5c then
+            tex.sprint(
+              string.format(string.char(0x5c) .. string.char(0x25) .. '03o',
+                            c))
+          else
+            tex.sprint(string.char(c))
+          end
+        end
+      end
+    }
+  \endgroup
+  \def\pdfescapestring#1{\directlua{PDFescstr('\luaescapestring{#1}')}}
+  \ifnum\luatexversion>84
+    % For LuaTeX >= 0.85
+    \def\pdfdest{\pdfextension dest}
+    \let\pdfoutput\outputmode
+    \def\pdfliteral{\pdfextension literal}
+    \def\pdfcatalog{\pdfextension catalog}
+    \def\pdftexversion{\numexpr\pdffeedback version\relax}
+    \let\pdfximage\saveimageresource
+    \let\pdfrefximage\useimageresource
+    \let\pdflastximage\lastsavedimageresourceindex
+    \def\pdfendlink{\pdfextension endlink\relax}
+    \def\pdfoutline{\pdfextension outline}
+    \def\pdfstartlink{\pdfextension startlink}
+    \def\pdffontattr{\pdfextension fontattr}
+    \def\pdfobj{\pdfextension obj}
+    \def\pdflastobj{\numexpr\pdffeedback lastobj\relax}
+    \let\pdfpagewidth\pagewidth
+    \let\pdfpageheight\pageheight
+    \edef\pdfhorigin{\pdfvariable horigin}
+    \edef\pdfvorigin{\pdfvariable vorigin}
+  \fi
+\fi
+
 % when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
 % can be set).  So we test for \relax and 0 as well as being undefined.
 \ifx\pdfoutput\thisisundefined
@@ -1107,15 +1177,24 @@ where each line of input produces a line
 % #1 is a control sequence in which to do the replacements,
 % which we \xdef.
 \def\txiescapepdf#1{%
-  \ifx\pdfescapestring\relax
+  \ifx\pdfescapestring\thisisundefined
     % No primitive available; should we give a warning or log?
     % Many times it won't matter.
+    \xdef#1{#1}%
   \else
     % The expandable \pdfescapestring primitive escapes parentheses,
     % backslashes, and other special chars.
     \xdef#1{\pdfescapestring{#1}}%
   \fi
 }
+\def\txiescapepdfutfsixteen#1{%
+  \ifx\pdfescapestrutfsixteen\thisisundefined
+    % No UTF-16 converting macro available.
+    \txiescapepdf{#1}%
+  \else
+    \xdef#1{\pdfescapestrutfsixteen{#1}}%
+  \fi
+}
 
 \newhelp\nopdfimagehelp{Texinfo supports .png, .jpg, .jpeg, and .pdf images
 with PDF output, and none of those formats could be found.  (.eps cannot
@@ -1124,15 +1203,17 @@ output) for that.)}
 
 \ifpdf
   %
-  % Color manipulation macros based on pdfcolor.tex,
+  % Color manipulation macros using ideas from pdfcolor.tex,
   % except using rgb instead of cmyk; the latter is said to render as a
   % very dark gray on-screen and a very dark halftone in print, instead
-  % of actual black.
+  % of actual black. The dark red here is dark enough to print on paper as
+  % nearly black, but still distinguishable for online viewing.  We use
+  % black by default, though.
   \def\rgbDarkRed{0.50 0.09 0.12}
   \def\rgbBlack{0 0 0}
   %
-  % k sets the color for filling (usual text, etc.);
-  % K sets the color for stroking (thin rules, e.g., normal _'s).
+  % rg sets the color for filling (usual text, etc.);
+  % RG sets the color for stroking (thin rules, e.g., normal _'s).
   \def\pdfsetcolor#1{\pdfliteral{#1 rg  #1 RG}}
   %
   % Set color, and create a mark which defines \thiscolor accordingly,
@@ -1173,8 +1254,8 @@ output) for that.)}
   %
   % #1 is image name, #2 width (might be empty/whitespace), #3 height (ditto).
   \def\dopdfimage#1#2#3{%
-    \def\imagewidth{#2}\setbox0 = \hbox{\ignorespaces #2}%
-    \def\imageheight{#3}\setbox2 = \hbox{\ignorespaces #3}%
+    \def\pdfimagewidth{#2}\setbox0 = \hbox{\ignorespaces #2}%
+    \def\pdfimageheight{#3}\setbox2 = \hbox{\ignorespaces #3}%
     %
     % pdftex (and the PDF format) support .pdf, .png, .jpg (among
     % others).  Let's try in that order, PDF first since if
@@ -1212,8 +1293,8 @@ output) for that.)}
     \else
       \immediate\pdfximage
     \fi
-      \ifdim \wd0 >0pt width \imagewidth \fi
-      \ifdim \wd2 >0pt height \imageheight \fi
+      \ifdim \wd0 >0pt width \pdfimagewidth \fi
+      \ifdim \wd2 >0pt height \pdfimageheight \fi
       \ifnum\pdftexversion<13
          #1.\pdfimgext
        \else
@@ -1223,24 +1304,83 @@ output) for that.)}
       \pdfrefximage \pdflastximage
     \fi}
   %
-  \def\pdfmkdest#1{{%
+  \def\setpdfdestname#1{{%
     % We have to set dummies so commands such as @code, and characters
     % such as \, aren't expanded when present in a section title.
     \indexnofonts
-    \turnoffactive
     \makevalueexpandable
+    \turnoffactive
+    \iftxiuseunicodedestname
+      \ifx \declaredencoding \latone
+        % Pass through Latin-1 characters.
+        % LuaTeX with byte wise I/O converts Latin-1 characters to Unicode.
+      \else
+        \ifx \declaredencoding \utfeight
+          % Pass through Unicode characters.
+        \else
+          % Use ASCII approximations in destination names.
+          \passthroughcharsfalse
+        \fi
+      \fi
+    \else
+      % Use ASCII approximations in destination names.
+      \passthroughcharsfalse
+    \fi
     \def\pdfdestname{#1}%
     \txiescapepdf\pdfdestname
-    \safewhatsit{\pdfdest name{\pdfdestname} xyz}%
   }}
   %
+  \def\setpdfoutlinetext#1{{%
+    \indexnofonts
+    \makevalueexpandable
+    \turnoffactive
+    \ifx \declaredencoding \latone
+      % The PDF format can use an extended form of Latin-1 in bookmark
+      % strings.  See Appendix D of the PDF Reference, Sixth Edition, for
+      % the "PDFDocEncoding".
+      \passthroughcharstrue
+      % Pass through Latin-1 characters.
+      %   LuaTeX: Convert to Unicode
+      %   pdfTeX: Use Latin-1 as PDFDocEncoding
+      \def\pdfoutlinetext{#1}%
+    \else
+      \ifx \declaredencoding \utfeight
+        \ifx\luatexversion\thisisundefined
+          % For pdfTeX  with UTF-8.
+          % TODO: the PDF format can use UTF-16 in bookmark strings,
+          % but the code for this isn't done yet.
+          % Use ASCII approximations.
+          \passthroughcharsfalse
+          \def\pdfoutlinetext{#1}%
+        \else
+          % For LuaTeX with UTF-8.
+          % Pass through Unicode characters for title texts.
+          \passthroughcharstrue
+          \def\pdfoutlinetext{#1}%
+        \fi
+      \else
+        % For non-Latin-1 or non-UTF-8 encodings.
+        % Use ASCII approximations.
+        \passthroughcharsfalse
+        \def\pdfoutlinetext{#1}%
+      \fi
+    \fi
+    % LuaTeX: Convert to UTF-16
+    % pdfTeX: Use Latin-1 as PDFDocEncoding
+    \txiescapepdfutfsixteen\pdfoutlinetext
+  }}
+  %
+  \def\pdfmkdest#1{%
+    \setpdfdestname{#1}%
+    \safewhatsit{\pdfdest name{\pdfdestname} xyz}%
+  }
+  %
   % used to mark target names; must be expandable.
   \def\pdfmkpgn#1{#1}
   %
-  % by default, use a color that is dark enough to print on paper as
-  % nearly black, but still distinguishable for online viewing.
-  \def\urlcolor{\rgbDarkRed}
-  \def\linkcolor{\rgbDarkRed}
+  % by default, use black for everything.
+  \def\urlcolor{\rgbBlack}
+  \def\linkcolor{\rgbBlack}
   \def\endlink{\setcolor{\maincolor}\pdfendlink}
   %
   % Adding outlines to PDF; macros for calculating structure of outlines
@@ -1262,18 +1402,13 @@ output) for that.)}
     % page number.  We could generate a destination for the section
     % text in the case where a section has no node, but it doesn't
     % seem worth the trouble, since most documents are normally structured.
-    \edef\pdfoutlinedest{#3}%
-    \ifx\pdfoutlinedest\empty
-      \def\pdfoutlinedest{#4}%
-    \else
-      \txiescapepdf\pdfoutlinedest
+    \setpdfoutlinetext{#1}
+    \setpdfdestname{#3}
+    \ifx\pdfdestname\empty
+      \def\pdfdestname{#4}%
     \fi
     %
-    % Also escape PDF chars in the display string.
-    \edef\pdfoutlinetext{#1}%
-    \txiescapepdf\pdfoutlinetext
-    %
-    \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{\pdfoutlinetext}%
+    \pdfoutline goto name{\pdfmkpgn{\pdfdestname}}#2{\pdfoutlinetext}%
   }
   %
   \def\pdfmakeoutlines{%
@@ -1357,12 +1492,17 @@ output) for that.)}
   \def\skipspaces#1{\def\PP{#1}\def\D{|}%
     \ifx\PP\D\let\nextsp\relax
     \else\let\nextsp\skipspaces
-      \ifx\p\space\else\addtokens{\filename}{\PP}%
-        \advance\filenamelength by 1
-      \fi
+      \addtokens{\filename}{\PP}%
+      \advance\filenamelength by 1
     \fi
     \nextsp}
-  \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
+  \def\getfilename#1{%
+    \filenamelength=0
+    % If we don't expand the argument now, \skipspaces will get
+    % snagged on things like "@value{foo}".
+    \edef\temp{#1}%
+    \expandafter\skipspaces\temp|\relax
+  }
   \ifnum\pdftexversion < 14
     \let \startlink \pdfannotlink
   \else
@@ -1423,44 +1563,297 @@ output) for that.)}
   \let\pdfmakeoutlines = \relax
 \fi  % \ifx\pdfoutput
 
-
-\message{fonts,}
-
-% Change the current font style to #1, remembering it in \curfontstyle.
-% For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
-% italics, not bold italics.
 %
-\def\setfontstyle#1{%
-  \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
-  \csname ten#1\endcsname  % change the current font
-}
-
-% Select #1 fonts with the current style.
+% For XeTeX
 %
-\def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname}
-
-\def\rm{\fam=0 \setfontstyle{rm}}
-\def\it{\fam=\itfam \setfontstyle{it}}
-\def\sl{\fam=\slfam \setfontstyle{sl}}
-\def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf}
-\def\tt{\fam=\ttfam \setfontstyle{tt}}
-
-% Unfortunately, we have to override this for titles and the like, since
-% in those cases "rm" is bold.  Sigh.
-\def\rmisbold{\rm\def\curfontstyle{bf}}
-
-% Texinfo sort of supports the sans serif font style, which plain TeX does not.
-% So we set up a \sf.
-\newfam\sffam
-\def\sf{\fam=\sffam \setfontstyle{sf}}
-\let\li = \sf % Sometimes we call it \li, not \sf.
+\ifx\XeTeXrevision\thisisundefined
+\else
+  %
+  % XeTeX version check
+  %
+  \ifnum\strcmp{\the\XeTeXversion\XeTeXrevision}{0.99996}>-1
+    % TeX Live 2016 contains XeTeX 0.99996 and xdvipdfmx 20160307.
+    % It can use the `dvipdfmx:config' special (from TeX Live SVN r40941).
+    % For avoiding PDF destination name replacement, we use this special
+    % instead of xdvipdfmx's command line option `-C 0x0010'.
+    \special{dvipdfmx:config C 0x0010}
+    % XeTeX 0.99995+ comes with xdvipdfmx 20160307+.
+    % It can handle Unicode destination names for PDF.
+    \txiuseunicodedestnametrue
+  \else
+    % XeTeX < 0.99996 (TeX Live < 2016) cannot use the
+    % `dvipdfmx:config' special.
+    % So for avoiding PDF destination name replacement,
+    % xdvipdfmx's command line option `-C 0x0010' is necessary.
+    %
+    % XeTeX < 0.99995 can not handle Unicode destination names for PDF
+    % because xdvipdfmx 20150315 has a UTF-16 conversion issue.
+    % It is fixed by xdvipdfmx 20160106 (TeX Live SVN r39753).
+    \txiuseunicodedestnamefalse
+  \fi
+  %
+  % Color support
+  %
+  \def\rgbDarkRed{0.50 0.09 0.12}
+  \def\rgbBlack{0 0 0}
+  %
+  \def\pdfsetcolor#1{\special{pdf:scolor [#1]}}
+  %
+  % Set color, and create a mark which defines \thiscolor accordingly,
+  % so that \makeheadline knows which color to restore.
+  \def\setcolor#1{%
+    \xdef\lastcolordefs{\gdef\noexpand\thiscolor{#1}}%
+    \domark
+    \pdfsetcolor{#1}%
+  }
+  %
+  \def\maincolor{\rgbBlack}
+  \pdfsetcolor{\maincolor}
+  \edef\thiscolor{\maincolor}
+  \def\lastcolordefs{}
+  %
+  \def\makefootline{%
+    \baselineskip24pt
+    \line{\pdfsetcolor{\maincolor}\the\footline}%
+  }
+  %
+  \def\makeheadline{%
+    \vbox to 0pt{%
+      \vskip-22.5pt
+      \line{%
+        \vbox to8.5pt{}%
+        % Extract \thiscolor definition from the marks.
+        \getcolormarks
+        % Typeset the headline with \maincolor, then restore the color.
+        \pdfsetcolor{\maincolor}\the\headline\pdfsetcolor{\thiscolor}%
+      }%
+      \vss
+    }%
+    \nointerlineskip
+  }
+  %
+  % PDF outline support
+  %
+  % Emulate pdfTeX primitive
+  \def\pdfdest name#1 xyz{%
+    \special{pdf:dest (#1) [@thispage /XYZ @xpos @ypos null]}%
+  }
+  %
+  \def\setpdfdestname#1{{%
+    % We have to set dummies so commands such as @code, and characters
+    % such as \, aren't expanded when present in a section title.
+    \indexnofonts
+    \makevalueexpandable
+    \turnoffactive
+    \iftxiuseunicodedestname
+      % Pass through Unicode characters.
+    \else
+      % Use ASCII approximations in destination names.
+      \passthroughcharsfalse
+    \fi
+    \def\pdfdestname{#1}%
+    \txiescapepdf\pdfdestname
+  }}
+  %
+  \def\setpdfoutlinetext#1{{%
+    \turnoffactive
+    % Always use Unicode characters in title texts.
+    \def\pdfoutlinetext{#1}%
+    % For XeTeX, xdvipdfmx converts to UTF-16.
+    % So we do not convert.
+    \txiescapepdf\pdfoutlinetext
+  }}
+  %
+  \def\pdfmkdest#1{%
+    \setpdfdestname{#1}%
+    \safewhatsit{\pdfdest name{\pdfdestname} xyz}%
+  }
+  %
+  % by default, use black for everything.
+  \def\urlcolor{\rgbBlack}
+  \def\linkcolor{\rgbBlack}
+  \def\endlink{\setcolor{\maincolor}\pdfendlink}
+  %
+  \def\dopdfoutline#1#2#3#4{%
+    \setpdfoutlinetext{#1}
+    \setpdfdestname{#3}
+    \ifx\pdfdestname\empty
+      \def\pdfdestname{#4}%
+    \fi
+    %
+    \special{pdf:out [-] #2 << /Title (\pdfoutlinetext) /A
+      << /S /GoTo /D (\pdfdestname) >> >> }%
+  }
+  %
+  \def\pdfmakeoutlines{%
+    \begingroup
+      %
+      % For XeTeX, counts of subentries are not necessary.
+      % Therefore, we read toc only once.
+      %
+      % We use node names as destinations.
+      \def\partentry##1##2##3##4{}% ignore parts in the outlines
+      \def\numchapentry##1##2##3##4{%
+        \dopdfoutline{##1}{1}{##3}{##4}}%
+      \def\numsecentry##1##2##3##4{%
+        \dopdfoutline{##1}{2}{##3}{##4}}%
+      \def\numsubsecentry##1##2##3##4{%
+        \dopdfoutline{##1}{3}{##3}{##4}}%
+      \def\numsubsubsecentry##1##2##3##4{%
+        \dopdfoutline{##1}{4}{##3}{##4}}%
+      %
+      \let\appentry\numchapentry%
+      \let\appsecentry\numsecentry%
+      \let\appsubsecentry\numsubsecentry%
+      \let\appsubsubsecentry\numsubsubsecentry%
+      \let\unnchapentry\numchapentry%
+      \let\unnsecentry\numsecentry%
+      \let\unnsubsecentry\numsubsecentry%
+      \let\unnsubsubsecentry\numsubsubsecentry%
+      %
+      % For XeTeX, xdvipdfmx converts strings to UTF-16.
+      % Therefore, the encoding and the language may not be considered.
+      %
+      \indexnofonts
+      \setupdatafile
+      % We can have normal brace characters in the PDF outlines, unlike
+      % Texinfo index files.  So set that up.
+      \def\{{\lbracecharliteral}%
+      \def\}{\rbracecharliteral}%
+      \catcode`\\=\active \otherbackslash
+      \input \tocreadfilename
+    \endgroup
+  }
+  {\catcode`[=1 \catcode`]=2
+   \catcode`{=\other \catcode`}=\other
+   \gdef\lbracecharliteral[{]%
+   \gdef\rbracecharliteral[}]%
+  ]
 
-% We don't need math for this font style.
-\def\ttsl{\setfontstyle{ttsl}}
+  \special{pdf:docview << /PageMode /UseOutlines >> }
+  % ``\special{pdf:tounicode ...}'' is not necessary
+  % because xdvipdfmx converts strings from UTF-8 to UTF-16 without it.
+  % However, due to a UTF-16 conversion issue of xdvipdfmx 20150315,
+  % ``\special{pdf:dest ...}'' cannot handle non-ASCII strings.
+  % It is fixed by xdvipdfmx 20160106 (TeX Live SVN r39753).
+%
+  \def\skipspaces#1{\def\PP{#1}\def\D{|}%
+    \ifx\PP\D\let\nextsp\relax
+    \else\let\nextsp\skipspaces
+      \addtokens{\filename}{\PP}%
+      \advance\filenamelength by 1
+    \fi
+    \nextsp}
+  \def\getfilename#1{%
+    \filenamelength=0
+    % If we don't expand the argument now, \skipspaces will get
+    % snagged on things like "@value{foo}".
+    \edef\temp{#1}%
+    \expandafter\skipspaces\temp|\relax
+  }
+  % make a live url in pdf output.
+  \def\pdfurl#1{%
+    \begingroup
+      % it seems we really need yet another set of dummies; have not
+      % tried to figure out what each command should do in the context
+      % of @url.  for now, just make @/ a no-op, that's the only one
+      % people have actually reported a problem with.
+      %
+      \normalturnoffactive
+      \def\@{@}%
+      \let\/=\empty
+      \makevalueexpandable
+      % do we want to go so far as to use \indexnofonts instead of just
+      % special-casing \var here?
+      \def\var##1{##1}%
+      %
+      \leavevmode\setcolor{\urlcolor}%
+      \special{pdf:bann << /Border [0 0 0]
+        /Subtype /Link /A << /S /URI /URI (#1) >> >>}%
+    \endgroup}
+  \def\endlink{\setcolor{\maincolor}\special{pdf:eann}}
+  \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
+  \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
+  \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
+  \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
+  \def\maketoks{%
+    \expandafter\poptoks\the\toksA|ENDTOKS|\relax
+    \ifx\first0\adn0
+    \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
+    \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
+    \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
+    \else
+      \ifnum0=\countA\else\makelink\fi
+      \ifx\first.\let\next=\done\else
+        \let\next=\maketoks
+        \addtokens{\toksB}{\the\toksD}
+        \ifx\first,\addtokens{\toksB}{\space}\fi
+      \fi
+    \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+    \next}
+  \def\makelink{\addtokens{\toksB}%
+    {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
+  \def\pdflink#1{%
+    \special{pdf:bann << /Border [0 0 0]
+      /Type /Annot /Subtype /Link /A << /S /GoTo /D (#1) >> >>}%
+    \setcolor{\linkcolor}#1\endlink}
+  \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
+%
+  %
+  % @image support
+  %
+  % #1 is image name, #2 width (might be empty/whitespace), #3 height (ditto).
+  \def\doxeteximage#1#2#3{%
+    \def\xeteximagewidth{#2}\setbox0 = \hbox{\ignorespaces #2}%
+    \def\xeteximageheight{#3}\setbox2 = \hbox{\ignorespaces #3}%
+    %
+    % XeTeX (and the PDF format) supports .pdf, .png, .jpg (among
+    % others).  Let's try in that order, PDF first since if
+    % someone has a scalable image, presumably better to use that than a
+    % bitmap.
+    \let\xeteximgext=\empty
+    \begingroup
+      \openin 1 #1.pdf \ifeof 1
+        \openin 1 #1.PDF \ifeof 1
+          \openin 1 #1.png \ifeof 1
+            \openin 1 #1.jpg \ifeof 1
+              \openin 1 #1.jpeg \ifeof 1
+                \openin 1 #1.JPG \ifeof 1
+                  \errmessage{Could not find image file #1 for XeTeX}%
+                \else \gdef\xeteximgext{JPG}%
+                \fi
+              \else \gdef\xeteximgext{jpeg}%
+              \fi
+            \else \gdef\xeteximgext{jpg}%
+            \fi
+          \else \gdef\xeteximgext{png}%
+          \fi
+        \else \gdef\xeteximgext{PDF}%
+        \fi
+      \else \gdef\xeteximgext{pdf}%
+      \fi
+      \closein 1
+    \endgroup
+    %
+    \def\xetexpdfext{pdf}%
+    \ifx\xeteximgext\xetexpdfext
+      \XeTeXpdffile "#1".\xeteximgext ""
+    \else
+      \def\xetexpdfext{PDF}%
+      \ifx\xeteximgext\xetexpdfext
+        \XeTeXpdffile "#1".\xeteximgext ""
+      \else
+        \XeTeXpicfile "#1".\xeteximgext ""
+      \fi
+    \fi
+    \ifdim \wd0 >0pt width \xeteximagewidth \fi
+    \ifdim \wd2 >0pt height \xeteximageheight \fi \relax
+  }
+\fi
 
 
-% Default leading.
-\newdimen\textleading  \textleading = 13.2pt
+%
+\message{fonts,}
 
 % Set the baselineskip to #1, and the lineskip and strut size
 % correspondingly.  There is no deep meaning behind these magic numbers
@@ -1473,6 +1866,7 @@ output) for that.)}
 % can get a sort of poor man's double spacing by redefining this.
 \def\baselinefactor{1}
 %
+\newdimen\textleading
 \def\setleading#1{%
   \dimen0 = #1\relax
   \normalbaselineskip = \baselinefactor\dimen0
@@ -1745,18 +2139,24 @@ end
 \fi\fi
 
 
-% Set the font macro #1 to the font named #2, adding on the
-% specified font prefix (normally `cm').
+% Set the font macro #1 to the font named \fontprefix#2.
 % #3 is the font's design size, #4 is a scale factor, #5 is the CMap
-% encoding (currently only OT1, OT1IT and OT1TT are allowed, pass
-% empty to omit).
+% encoding (only OT1, OT1IT and OT1TT are allowed, or empty to omit).
+% Example:
+% #1 = \textrm
+% #2 = \rmshape
+% #3 = 10
+% #4 = \mainmagstep
+% #5 = OT1
+%
 \def\setfont#1#2#3#4#5{%
   \font#1=\fontprefix#2#3 scaled #4
   \csname cmap#5\endcsname#1%
 }
 % This is what gets called when #5 of \setfont is empty.
 \let\cmap\gobble
-% emacs-page end of cmaps
+%
+% (end of cmaps)
 
 % Use cm as the default font prefix.
 % To specify the font prefix, you must define \fontprefix
@@ -1766,7 +2166,7 @@ end
 \fi
 % Support font families that don't use the same naming scheme as CM.
 \def\rmshape{r}
-\def\rmbshape{bx}               %where the normal face is bold
+\def\rmbshape{bx}               % where the normal face is bold
 \def\bfshape{b}
 \def\bxshape{bx}
 \def\ttshape{tt}
@@ -1781,8 +2181,7 @@ end
 \def\scshape{csc}
 \def\scbshape{csc}
 
-% Definitions for a main text size of 11pt.  This is the default in
-% Texinfo.
+% Definitions for a main text size of 11pt.  (The default in Texinfo.)
 %
 \def\definetextfontsizexi{%
 % Text fonts (11.2pt, magstep1).
@@ -1803,8 +2202,10 @@ end
 % A few fonts for @defun names and args.
 \setfont\defbf\bfshape{10}{\magstep1}{OT1}
 \setfont\deftt\ttshape{10}{\magstep1}{OT1TT}
+\setfont\defsl\slshape{10}{\magstep1}{OT1TT}
 \setfont\defttsl\ttslshape{10}{\magstep1}{OT1TT}
-\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
+\def\df{\let\ttfont=\deftt \let\bffont = \defbf
+\let\ttslfont=\defttsl \let\slfont=\defsl \bf}
 
 % Fonts for indices, footnotes, small examples (9pt).
 \def\smallnominalsize{9pt}
@@ -1865,6 +2266,7 @@ end
 % Section fonts (14.4pt).
 \def\secnominalsize{14pt}
 \setfont\secrm\rmbshape{12}{\magstep1}{OT1}
+\setfont\secrmnotbold\rmshape{12}{\magstep1}{OT1}
 \setfont\secit\itbshape{10}{\magstep2}{OT1IT}
 \setfont\secsl\slbshape{10}{\magstep2}{OT1}
 \setfont\sectt\ttbshape{12}{\magstep1}{OT1TT}
@@ -1890,7 +2292,7 @@ end
 \font\ssecsy=cmsy10 scaled 1315
 \def\ssececsize{1200}
 
-% Reduced fonts for @acro in text (10pt).
+% Reduced fonts for @acronym in text (10pt).
 \def\reducednominalsize{10pt}
 \setfont\reducedrm\rmshape{10}{1000}{OT1}
 \setfont\reducedtt\ttshape{10}{1000}{OT1TT}
@@ -1907,7 +2309,7 @@ end
 \textleading = 13.2pt % line spacing for 11pt CM
 \textfonts            % reset the current fonts
 \rm
-} % end of 11pt text font size definitions
+} % end of 11pt text font size definitions, \definetextfontsizexi
 
 
 % Definitions to make the main text be 10pt Computer Modern, with
@@ -1934,8 +2336,10 @@ end
 % A few fonts for @defun names and args.
 \setfont\defbf\bfshape{10}{\magstephalf}{OT1}
 \setfont\deftt\ttshape{10}{\magstephalf}{OT1TT}
+\setfont\defsl\slshape{10}{\magstephalf}{OT1TT}
 \setfont\defttsl\ttslshape{10}{\magstephalf}{OT1TT}
-\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
+\def\df{\let\ttfont=\deftt \let\bffont = \defbf
+\let\slfont=\defsl \let\ttslfont=\defttsl \bf}
 
 % Fonts for indices, footnotes, small examples (9pt).
 \def\smallnominalsize{9pt}
@@ -2021,7 +2425,7 @@ end
 \font\ssecsy=cmsy10
 \def\ssececsize{1000}
 
-% Reduced fonts for @acro in text (9pt).
+% Reduced fonts for @acronym in text (9pt).
 \def\reducednominalsize{9pt}
 \setfont\reducedrm\rmshape{9}{1000}{OT1}
 \setfont\reducedtt\ttshape{9}{1000}{OT1TT}
@@ -2039,7 +2443,13 @@ end
 \textleading = 12pt   % line spacing for 10pt CM
 \textfonts            % reset the current fonts
 \rm
-} % end of 10pt text font size definitions
+} % end of 10pt text font size definitions, \definetextfontsizex
+
+% Fonts for short table of contents.
+\setfont\shortcontrm\rmshape{12}{1000}{OT1}
+\setfont\shortcontbf\bfshape{10}{\magstep1}{OT1}  % no cmb12
+\setfont\shortcontsl\slshape{12}{1000}{OT1}
+\setfont\shortconttt\ttshape{12}{1000}{OT1TT}
 
 
 % We provide the user-level command
@@ -2067,102 +2477,111 @@ end
  \endgroup
 }
 
+%
+% Change the current font style to #1, remembering it in \curfontstyle.
+% For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
+% italics, not bold italics.
+%
+\def\setfontstyle#1{%
+  \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
+  \csname #1font\endcsname  % change the current font
+}
+
+\def\rm{\fam=0 \setfontstyle{rm}}
+\def\it{\fam=\itfam \setfontstyle{it}}
+\def\sl{\fam=\slfam \setfontstyle{sl}}
+\def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf}
+\def\tt{\fam=\ttfam \setfontstyle{tt}}
+
+% Texinfo sort of supports the sans serif font style, which plain TeX does not.
+% So we set up a \sf.
+\newfam\sffam
+\def\sf{\fam=\sffam \setfontstyle{sf}}
+
+% We don't need math for this font style.
+\def\ttsl{\setfontstyle{ttsl}}
+
 
 % In order for the font changes to affect most math symbols and letters,
-% we have to define the \textfont of the standard families.  Since
-% texinfo doesn't allow for producing subscripts and superscripts except
-% in the main text, we don't bother to reset \scriptfont and
-% \scriptscriptfont (which would also require loading a lot more fonts).
+% we have to define the \textfont of the standard families.  We don't
+% bother to reset \scriptfont and \scriptscriptfont; awaiting user need.
 %
 \def\resetmathfonts{%
-  \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
-  \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
-  \textfont\ttfam=\tentt \textfont\sffam=\tensf
+  \textfont0=\rmfont \textfont1=\ifont \textfont2=\syfont
+  \textfont\itfam=\itfont \textfont\slfam=\slfont \textfont\bffam=\bffont
+  \textfont\ttfam=\ttfont \textfont\sffam=\sffont
 }
 
-% The font-changing commands redefine the meanings of \tenSTYLE, instead
-% of just \STYLE.  We do this because \STYLE needs to also set the
-% current \fam for math mode.  Our \STYLE (e.g., \rm) commands hardwire
-% \tenSTYLE to set the current font.
+%
+
+% The font-changing commands (all called \...fonts) redefine the meanings
+% of \STYLEfont, instead of just \STYLE.  We do this because \STYLE needs
+% to also set the current \fam for math mode.  Our \STYLE (e.g., \rm)
+% commands hardwire \STYLEfont to set the current font.
 %
 % Each font-changing command also sets the names \lsize (one size lower)
-% and \lllsize (three sizes lower).  These relative commands are used in
-% the LaTeX logo and acronyms.
+% and \lllsize (three sizes lower).  These relative commands are used
+% in, e.g., the LaTeX logo and acronyms.
 %
 % This all needs generalizing, badly.
 %
-\def\textfonts{%
-  \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
-  \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
-  \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
-  \let\tenttsl=\textttsl
-  \def\curfontsize{text}%
-  \def\lsize{reduced}\def\lllsize{smaller}%
-  \resetmathfonts \setleading{\textleading}}
-\def\titlefonts{%
-  \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
-  \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
-  \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
-  \let\tenttsl=\titlettsl
-  \def\curfontsize{title}%
-  \def\lsize{chap}\def\lllsize{subsec}%
-  \resetmathfonts \setleading{27pt}}
-\def\titlefont#1{{\titlefonts\rmisbold #1}}
-\def\chapfonts{%
-  \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
-  \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
-  \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy
-  \let\tenttsl=\chapttsl
-  \def\curfontsize{chap}%
-  \def\lsize{sec}\def\lllsize{text}%
-  \resetmathfonts \setleading{19pt}}
-\def\secfonts{%
-  \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
-  \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
-  \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
-  \let\tenttsl=\secttsl
-  \def\curfontsize{sec}%
-  \def\lsize{subsec}\def\lllsize{reduced}%
-  \resetmathfonts \setleading{16pt}}
-\def\subsecfonts{%
-  \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
-  \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
-  \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
-  \let\tenttsl=\ssecttsl
-  \def\curfontsize{ssec}%
-  \def\lsize{text}\def\lllsize{small}%
-  \resetmathfonts \setleading{15pt}}
-\let\subsubsecfonts = \subsecfonts
-\def\reducedfonts{%
-  \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl
-  \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc
-  \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy
-  \let\tenttsl=\reducedttsl
-  \def\curfontsize{reduced}%
-  \def\lsize{small}\def\lllsize{smaller}%
-  \resetmathfonts \setleading{10.5pt}}
-\def\smallfonts{%
-  \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
-  \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
-  \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
-  \let\tenttsl=\smallttsl
-  \def\curfontsize{small}%
-  \def\lsize{smaller}\def\lllsize{smaller}%
-  \resetmathfonts \setleading{10.5pt}}
-\def\smallerfonts{%
-  \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
-  \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
-  \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
-  \let\tenttsl=\smallerttsl
-  \def\curfontsize{smaller}%
-  \def\lsize{smaller}\def\lllsize{smaller}%
-  \resetmathfonts \setleading{9.5pt}}
 
-% Fonts for short table of contents.
-\setfont\shortcontrm\rmshape{12}{1000}{OT1}
-\setfont\shortcontbf\bfshape{10}{\magstep1}{OT1}  % no cmb12
-\setfont\shortcontsl\slshape{12}{1000}{OT1}
-\setfont\shortconttt\ttshape{12}{1000}{OT1TT}
+\def\assignfonts#1{%
+  \expandafter\let\expandafter\rmfont\csname #1rm\endcsname
+  \expandafter\let\expandafter\itfont\csname #1it\endcsname
+  \expandafter\let\expandafter\slfont\csname #1sl\endcsname
+  \expandafter\let\expandafter\bffont\csname #1bf\endcsname
+  \expandafter\let\expandafter\ttfont\csname #1tt\endcsname
+  \expandafter\let\expandafter\smallcaps\csname #1sc\endcsname
+  \expandafter\let\expandafter\sffont  \csname #1sf\endcsname
+  \expandafter\let\expandafter\ifont   \csname #1i\endcsname
+  \expandafter\let\expandafter\syfont  \csname #1sy\endcsname
+  \expandafter\let\expandafter\ttslfont\csname #1ttsl\endcsname
+}
+
+\newif\ifrmisbold
+
+% Select smaller font size with the current style.  Used to change font size
+% in, e.g., the LaTeX logo and acronyms.  If we are using bold fonts for
+% normal roman text, also use bold fonts for roman text in the smaller size.
+\def\switchtolllsize{%
+   \expandafter\assignfonts\expandafter{\lllsize}%
+   \ifrmisbold
+     \let\rmfont\bffont
+   \fi
+   \csname\curfontstyle\endcsname
+}%
+
+\def\switchtolsize{%
+   \expandafter\assignfonts\expandafter{\lsize}%
+   \ifrmisbold
+     \let\rmfont\bffont
+   \fi
+   \csname\curfontstyle\endcsname
+}%
+
+\def\definefontsetatsize#1#2#3#4#5{%
+\expandafter\def\csname #1fonts\endcsname{%
+  \def\curfontsize{#1}%
+  \def\lsize{#2}\def\lllsize{#3}%
+  \csname rmisbold#5\endcsname
+  \assignfonts{#1}%
+  \resetmathfonts
+  \setleading{#4}%
+}}
+
+\definefontsetatsize{text}   {reduced}{smaller}{\textleading}{false}
+\definefontsetatsize{title}  {chap}   {subsec} {27pt}  {true}
+\definefontsetatsize{chap}   {sec}    {text}   {19pt}  {true}
+\definefontsetatsize{sec}    {subsec} {reduced}{17pt}  {true}
+\definefontsetatsize{ssec}   {text}   {small}  {15pt}  {true}
+\definefontsetatsize{reduced}{small}  {smaller}{10.5pt}{false}
+\definefontsetatsize{small}  {smaller}{smaller}{10.5pt}{false}
+\definefontsetatsize{smaller}{smaller}{smaller}{9.5pt} {false}
+
+\def\titlefont#1{{\titlefonts\rm #1}}
+\let\subsecfonts = \ssecfonts
+\let\subsubsecfonts = \ssecfonts
 
 % Define these just so they can be easily changed for other fonts.
 \def\angleleft{$\langle$}
@@ -2254,8 +2673,6 @@ end
 
 \gdef\markupsetcodequoteleft{\let`\codequoteleft}
 \gdef\markupsetcodequoteright{\let'\codequoteright}
-
-\gdef\markupsetnoligaturesquoteleft{\let`\noligaturesquoteleft}
 }
 
 \let\markupsetuplqcode \markupsetcodequoteleft
@@ -2264,6 +2681,9 @@ end
 \let\markupsetuplqexample \markupsetcodequoteleft
 \let\markupsetuprqexample \markupsetcodequoteright
 %
+\let\markupsetuplqkbd     \markupsetcodequoteleft
+\let\markupsetuprqkbd     \markupsetcodequoteright
+%
 \let\markupsetuplqsamp \markupsetcodequoteleft
 \let\markupsetuprqsamp \markupsetcodequoteright
 %
@@ -2273,8 +2693,6 @@ end
 \let\markupsetuplqverbatim \markupsetcodequoteleft
 \let\markupsetuprqverbatim \markupsetcodequoteright
 
-\let\markupsetuplqkbd \markupsetnoligaturesquoteleft
-
 % Allow an option to not use regular directed right quote/apostrophe
 % (char 0x27), but instead the undirected quote from cmtt (char 0x0d).
 % The undirected quote is ugly, so don't make it the default, but it
@@ -2359,13 +2777,14 @@ end
   \ifx\next,%
   \else\ifx\next-%
   \else\ifx\next.%
+  \else\ifx\next\.%
+  \else\ifx\next\comma%
   \else\ptexslash
-  \fi\fi\fi
+  \fi\fi\fi\fi\fi
   \aftersmartic
 }
 
-% like \smartslanted except unconditionally uses \ttsl, and no ic.
-% @var is set to this for defun arguments.
+% Unconditional use \ttsl, and no ic.  @var is set to this for defuns.
 \def\ttslanted#1{{\ttsl #1}}
 
 % @cite is like \smartslanted except unconditionally use \sl.  We never want
@@ -2409,8 +2828,8 @@ end
 %
 \catcode`@=11
   \def\plainfrenchspacing{%
-    \sfcode\dotChar  =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m
-    \sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m
+    \sfcode`\.=\@m \sfcode`\?=\@m \sfcode`\!=\@m
+    \sfcode`\:=\@m \sfcode`\;=\@m \sfcode`\,=\@m
     \def\endofsentencespacefactor{1000}% for @. and friends
   }
   \def\plainnonfrenchspacing{%
@@ -2430,34 +2849,12 @@ end
 % @samp.
 \def\samp#1{{\setupmarkupstyle{samp}\lq\tclose{#1}\rq\null}}
 
-% definition of @key that produces a lozenge.  Doesn't adjust to text size.
-%\setfont\keyrm\rmshape{8}{1000}{OT1}
-%\font\keysy=cmsy9
-%\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
-%  \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
-%    \vbox{\hrule\kern-0.4pt
-%     \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
-%    \kern-0.4pt\hrule}%
-%  \kern-.06em\raise0.4pt\hbox{\angleright}}}}
+% @indicateurl is \samp, that is, with quotes.
+\let\indicateurl=\samp
 
-% definition of @key with no lozenge.  If the current font is already
-% monospace, don't change it; that way, we respect @kbdinputstyle.  But
-% if it isn't monospace, then use \tt.
-%
-\def\key#1{{\setupmarkupstyle{key}%
-  \nohyphenation
-  \ifmonospace\else\tt\fi
-  #1}\null}
-
-% ctrl is no longer a Texinfo command.
-\def\ctrl #1{{\tt \rawbackslash \hat}#1}
-
-% @file, @option are the same as @samp.
-\let\file=\samp
-\let\option=\samp
-
-% @code is a modification of @t,
-% which makes spaces the same size as normal in the surrounding text.
+% @code (and similar) prints in typewriter, but with spaces the same
+% size as normal in the surrounding text, without hyphenation, etc.
+% This is a subroutine for that.
 \def\tclose#1{%
   {%
     % Change normal interword space to be same as for the current font.
@@ -2480,14 +2877,14 @@ end
 }
 
 % We *must* turn on hyphenation at `-' and `_' in @code.
+% (But see \codedashfinish below.)
 % Otherwise, it is too hard to avoid overfull hboxes
 % in the Emacs manual, the Library manual, etc.
-
+%
 % Unfortunately, TeX uses one parameter (\hyphenchar) to control
 % both hyphenation at - and hyphenation within words.
 % We must therefore turn them both off (\tclose does that)
-% and arrange explicitly to hyphenate at a dash.
-%  -- rms.
+% and arrange explicitly to hyphenate at a dash. -- rms.
 {
   \catcode`\-=\active \catcode`\_=\active
   \catcode`\'=\active \catcode`\`=\active
@@ -2501,17 +2898,38 @@ end
      \let-\codedash
      \let_\codeunder
     \else
-     \let-\realdash
+     \let-\normaldash
      \let_\realunder
     \fi
+    % Given -foo (with a single dash), we do not want to allow a break
+    % after the hyphen.
+    \global\let\codedashprev=\codedash
+    %
     \codex
   }
+  %
+  \gdef\codedash{\futurelet\next\codedashfinish}
+  \gdef\codedashfinish{%
+    \normaldash % always output the dash character itself.
+    % 
+    % Now, output a discretionary to allow a line break, unless
+    % (a) the next character is a -, or
+    % (b) the preceding character is a -.
+    % E.g., given --posix, we do not want to allow a break after either -.
+    % Given --foo-bar, we do want to allow a break between the - and the b.
+    \ifx\next\codedash \else
+      \ifx\codedashprev\codedash 
+      \else \discretionary{}{}{}\fi
+    \fi
+    % we need the space after the = for the case when \next itself is a
+    % space token; it would get swallowed otherwise.  As in @code{- a}.
+    \global\let\codedashprev= \next
+  }
 }
-
+\def\normaldash{-}
+%
 \def\codex #1{\tclose{#1}\endgroup}
 
-\def\realdash{-}
-\def\codedash{-\discretionary{}{}{}}
 \def\codeunder{%
   % this is all so @math{@code{var_name}+1} can work.  In math mode, _
   % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
@@ -2525,9 +2943,9 @@ end
 }
 
 % An additional complication: the above will allow breaks after, e.g.,
-% each of the four underscores in __typeof__.  This is undesirable in
-% some manuals, especially if they don't have long identifiers in
-% general.  @allowcodebreaks provides a way to control this.
+% each of the four underscores in __typeof__.  This is bad.
+% @allowcodebreaks provides a document-level way to turn breaking at -
+% and _ on and off.
 %
 \newif\ifallowcodebreaks  \allowcodebreakstrue
 
@@ -2546,37 +2964,28 @@ end
   \fi\fi
 }
 
-% @uref (abbreviation for `urlref') takes an optional (comma-separated)
-% second argument specifying the text to display and an optional third
-% arg as text to display instead of (rather than in addition to) the url
-% itself.  First (mandatory) arg is the url.
-% (This \urefnobreak definition isn't used now, leaving it for a while
-% for comparison.)
-\def\urefnobreak#1{\dourefnobreak #1,,,\finish}
-\def\dourefnobreak#1,#2,#3,#4\finish{\begingroup
-  \unsepspaces
-  \pdfurl{#1}%
-  \setbox0 = \hbox{\ignorespaces #3}%
-  \ifdim\wd0 > 0pt
-    \unhbox0 % third arg given, show only that
-  \else
-    \setbox0 = \hbox{\ignorespaces #2}%
-    \ifdim\wd0 > 0pt
-      \ifpdf
-        \unhbox0             % PDF: 2nd arg given, show only it
-      \else
-        \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
-      \fi
-    \else
-      \code{#1}% only url given, so show it
-    \fi
-  \fi
-  \endlink
-\endgroup}
+% For @command, @env, @file, @option quotes seem unnecessary,
+% so use \code rather than \samp.
+\let\command=\code
+\let\env=\code
+\let\file=\code
+\let\option=\code
 
-% This \urefbreak definition is the active one.
+% @uref (abbreviation for `urlref') aka @url takes an optional
+% (comma-separated) second argument specifying the text to display and
+% an optional third arg as text to display instead of (rather than in
+% addition to) the url itself.  First (mandatory) arg is the url.
+
+% TeX-only option to allow changing PDF output to show only the second
+% arg (if given), and not the url (which is then just the link target).
+\newif\ifurefurlonlylink
+
+% The main macro is \urefbreak, which allows breaking at expected
+% places within the url.  (There used to be another version, which
+% didn't support automatic breaking.)
 \def\urefbreak{\begingroup \urefcatcodes \dourefbreak}
 \let\uref=\urefbreak
+%
 \def\dourefbreak#1{\urefbreakfinish #1,,,\finish}
 \def\urefbreakfinish#1,#2,#3,#4\finish{% doesn't work in @example
   \unsepspaces
@@ -2585,12 +2994,32 @@ end
   \ifdim\wd0 > 0pt
     \unhbox0 % third arg given, show only that
   \else
-    \setbox0 = \hbox{\ignorespaces #2}%
+    \setbox0 = \hbox{\ignorespaces #2}% look for second arg
     \ifdim\wd0 > 0pt
       \ifpdf
-        \unhbox0             % PDF: 2nd arg given, show only it
+        % For pdfTeX and LuaTeX
+        \ifurefurlonlylink
+          % PDF plus option to not display url, show just arg
+          \unhbox0             
+        \else
+          % PDF, normally display both arg and url for consistency,
+          % visibility, if the pdf is eventually used to print, etc.
+          \unhbox0\ (\urefcode{#1})%
+        \fi
       \else
-        \unhbox0\ (\urefcode{#1})% DVI: 2nd arg given, show both it and url
+        \ifx\XeTeXrevision\thisisundefined
+          \unhbox0\ (\urefcode{#1})% DVI, always show arg and url
+        \else
+          % For XeTeX
+          \ifurefurlonlylink
+            % PDF plus option to not display url, show just arg
+            \unhbox0             
+          \else
+            % PDF, normally display both arg and url for consistency,
+            % visibility, if the pdf is eventually used to print, etc.
+            \unhbox0\ (\urefcode{#1})%
+          \fi
+        \fi
       \fi
     \else
       \urefcode{#1}% only url given, so show it
@@ -2601,9 +3030,9 @@ end
 
 % Allow line breaks around only a few characters (only).
 \def\urefcatcodes{%
-  \catcode\ampChar=\active   \catcode\dotChar=\active
-  \catcode\hashChar=\active  \catcode\questChar=\active
-  \catcode\slashChar=\active
+  \catcode`\&=\active \catcode`\.=\active
+  \catcode`\#=\active \catcode`\?=\active
+  \catcode`\/=\active
 }
 {
   \urefcatcodes
@@ -2630,8 +3059,10 @@ end
 % we put a little stretch before and after the breakable chars, to help
 % line breaking of long url's.  The unequal skips make look better in
 % cmtt at least, especially for dots.
-\def\urefprestretch{\urefprebreak \hskip0pt plus.13em }
-\def\urefpoststretch{\urefpostbreak \hskip0pt plus.1em }
+\def\urefprestretchamount{.13em}
+\def\urefpoststretchamount{.1em}
+\def\urefprestretch{\urefprebreak \hskip0pt plus\urefprestretchamount\relax}
+\def\urefpoststretch{\urefpostbreak \hskip0pt plus\urefprestretchamount\relax}
 %
 \def\urefcodeamp{\urefprestretch \&\urefpoststretch}
 \def\urefcodedot{\urefprestretch .\urefpoststretch}
@@ -2689,13 +3120,20 @@ end
     \endlink
   \endgroup}
 \else
-  \let\email=\uref
+  \ifx\XeTeXrevision\thisisundefined
+    \let\email=\uref
+  \else
+    \def\email#1{\doemail#1,,\finish}
+    \def\doemail#1,#2,#3\finish{\begingroup
+      \unsepspaces
+      \pdfurl{mailto:#1}%
+      \setbox0 = \hbox{\ignorespaces #2}%
+      \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
+      \endlink
+    \endgroup}
+  \fi
 \fi
 
-% @kbd is like @code, except that if the argument is just one @key command,
-% then @kbd has no effect.
-\def\kbd#1{{\setupmarkupstyle{kbd}\def\look{#1}\expandafter\kbdfoo\look??\par}}
-
 % @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
 %   `example' (@kbd uses ttsl only inside of @example and friends),
 %   or `code' (@kbd uses normal tty font always).
@@ -2719,16 +3157,36 @@ end
 % Default is `distinct'.
 \kbdinputstyle distinct
 
+% @kbd is like @code, except that if the argument is just one @key command,
+% then @kbd has no effect.
+\def\kbd#1{{\def\look{#1}\expandafter\kbdsub\look??\par}}
+
 \def\xkey{\key}
-\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
-\ifx\one\xkey\ifx\threex\three \key{#2}%
-\else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi
-\else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi}
+\def\kbdsub#1#2#3\par{%
+  \def\one{#1}\def\three{#3}\def\threex{??}%
+  \ifx\one\xkey\ifx\threex\three \key{#2}%
+  \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi
+  \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi
+}
 
-% For @indicateurl, @env, @command quotes seem unnecessary, so use \code.
-\let\indicateurl=\code
-\let\env=\code
-\let\command=\code
+% definition of @key that produces a lozenge.  Doesn't adjust to text size.
+%\setfont\keyrm\rmshape{8}{1000}{OT1}
+%\font\keysy=cmsy9
+%\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
+%  \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
+%    \vbox{\hrule\kern-0.4pt
+%     \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
+%    \kern-0.4pt\hrule}%
+%  \kern-.06em\raise0.4pt\hbox{\angleright}}}}
+
+% definition of @key with no lozenge.  If the current font is already
+% monospace, don't change it; that way, we respect @kbdinputstyle.  But
+% if it isn't monospace, then use \tt.
+%
+\def\key#1{{\setupmarkupstyle{key}%
+  \nohyphenation
+  \ifmonospace\else\tt\fi
+  #1}\null}
 
 % @clicksequence{File @click{} Open ...}
 \def\clicksequence#1{\begingroup #1\endgroup}
@@ -2742,18 +3200,13 @@ end
 %
 \def\dmn#1{\thinspace #1}
 
-% @l was never documented to mean ``switch to the Lisp font'',
-% and it is not used as such in any manual I can find.  We need it for
-% Polish suppressed-l.  --karl, 22sep96.
-%\def\l#1{{\li #1}\null}
-
 % @acronym for "FBI", "NATO", and the like.
 % We print this one point size smaller, since it's intended for
 % all-uppercase.
 %
 \def\acronym#1{\doacronym #1,,\finish}
 \def\doacronym#1,#2,#3\finish{%
-  {\selectfonts\lsize #1}%
+  {\switchtolsize #1}%
   \def\temp{#2}%
   \ifx\temp\empty \else
     \space ({\unsepspaces \ignorespaces \temp \unskip})%
@@ -2799,21 +3252,24 @@ end
 \def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
 %
 \def\math{%
-  \tex
-  \mathunderscore
-  \let\\ = \mathbackslash
-  \mathactive
-  % make the texinfo accent commands work in math mode
-  \let\"=\ddot
-  \let\'=\acute
-  \let\==\bar
-  \let\^=\hat
-  \let\`=\grave
-  \let\u=\breve
-  \let\v=\check
-  \let\~=\tilde
-  \let\dotaccent=\dot
-  $\finishmath
+  \ifmmode\else % only go into math if not in math mode already
+    \tex
+    \mathunderscore
+    \let\\ = \mathbackslash
+    \mathactive
+    % make the texinfo accent commands work in math mode
+    \let\"=\ddot
+    \let\'=\acute
+    \let\==\bar
+    \let\^=\hat
+    \let\`=\grave
+    \let\u=\breve
+    \let\v=\check
+    \let\~=\tilde
+    \let\dotaccent=\dot
+    % have to provide another name for sup operator
+    \let\mathopsup=\sup
+  $\expandafter\finishmath\fi
 }
 \def\finishmath#1{#1$\endgroup}  % Close the group opened by \tex.
 
@@ -2836,6 +3292,18 @@ end
   }
 }
 
+% for @sub and @sup, if in math mode, just do a normal sub/superscript.
+% If in text, use math to place as sub/superscript, but switch
+% into text mode, with smaller fonts.  This is a different font than the
+% one used for real math sub/superscripts (8pt vs. 7pt), but let's not
+% fix it (significant additions to font machinery) until someone notices.
+%
+\def\sub{\ifmmode \expandafter\sb \else \expandafter\finishsub\fi}
+\def\finishsub#1{$\sb{\hbox{\switchtolllsize #1}}$}%
+%
+\def\sup{\ifmmode \expandafter\ptexsp \else \expandafter\finishsup\fi}
+\def\finishsup#1{$\ptexsp{\hbox{\switchtolllsize #1}}$}%
+
 % @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}.
 % Ignore unless FMTNAME == tex; then it is like @iftex and @tex,
 % except specified as a normal braced arg, so no newlines to worry about.
@@ -2847,6 +3315,15 @@ end
   \def\inlinefmtname{#1}%
   \ifx\inlinefmtname\outfmtnametex \ignorespaces #2\fi
 }
+% 
+% @inlinefmtifelse{FMTNAME,THEN-TEXT,ELSE-TEXT} expands THEN-TEXT if
+% FMTNAME is tex, else ELSE-TEXT.
+\long\def\inlinefmtifelse#1{\doinlinefmtifelse #1,,,\finish}
+\long\def\doinlinefmtifelse#1,#2,#3,#4,\finish{%
+  \def\inlinefmtname{#1}%
+  \ifx\inlinefmtname\outfmtnametex \ignorespaces #2\else \ignorespaces #3\fi
+}
+%
 % For raw, must switch into @tex before parsing the argument, to avoid
 % setting catcodes prematurely.  Doing it this way means that, for
 % example, @inlineraw{html, foo{bar} gets a parse error instead of being
@@ -2863,6 +3340,23 @@ end
   \endgroup % close group opened by \tex.
 }
 
+% @inlineifset{VAR, TEXT} expands TEXT if VAR is @set.
+%
+\long\def\inlineifset#1{\doinlineifset #1,\finish}
+\long\def\doinlineifset#1,#2,\finish{%
+  \def\inlinevarname{#1}%
+  \expandafter\ifx\csname SET\inlinevarname\endcsname\relax
+  \else\ignorespaces#2\fi
+}
+
+% @inlineifclear{VAR, TEXT} expands TEXT if VAR is not @set.
+%
+\long\def\inlineifclear#1{\doinlineifclear #1,\finish}
+\long\def\doinlineifclear#1,#2,\finish{%
+  \def\inlinevarname{#1}%
+  \expandafter\ifx\csname SET\inlinevarname\endcsname\relax \ignorespaces#2\fi
+}
+
 
 \message{glyphs,}
 % and logos.
@@ -2872,23 +3366,10 @@ end
 \let\atchar=\@
 
 % @{ @} @lbracechar{} @rbracechar{} all generate brace characters.
-% Unless we're in typewriter, use \ecfont because the CM text fonts do
-% not have braces, and we don't want to switch into math.
-\def\mylbrace{{\ifmonospace\else\ecfont\fi \char123}}
-\def\myrbrace{{\ifmonospace\else\ecfont\fi \char125}}
-\let\{=\mylbrace \let\lbracechar=\{
-\let\}=\myrbrace \let\rbracechar=\}
-\begingroup
-  % Definitions to produce \{ and \} commands for indices,
-  % and @{ and @} for the aux/toc files.
-  \catcode`\{ = \other \catcode`\} = \other
-  \catcode`\[ = 1 \catcode`\] = 2
-  \catcode`\! = 0 \catcode`\\ = \other
-  !gdef!lbracecmd[\{]%
-  !gdef!rbracecmd[\}]%
-  !gdef!lbraceatcmd[@{]%
-  !gdef!rbraceatcmd[@}]%
-!endgroup
+\def\lbracechar{{\ifmonospace\char123\else\ensuremath\lbrace\fi}}
+\def\rbracechar{{\ifmonospace\char125\else\ensuremath\rbrace\fi}}
+\let\{=\lbracechar
+\let\}=\rbracechar
 
 % @comma{} to avoid , parsing problems.
 \let\comma = ,
@@ -2906,8 +3387,8 @@ end
 % Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
 \def\questiondown{?`}
 \def\exclamdown{!`}
-\def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}}
-\def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}}
+\def\ordf{\leavevmode\raise1ex\hbox{\switchtolllsize \underbar{a}}}
+\def\ordm{\leavevmode\raise1ex\hbox{\switchtolllsize \underbar{o}}}
 
 % Dotless i and dotless j, used for accents.
 \def\imacro{i}
@@ -2936,12 +3417,12 @@ end
   {\setbox0=\hbox{T}%
    \vbox to \ht0{\hbox{%
      \ifx\textnominalsize\xwordpt
-       % for 10pt running text, \lllsize (8pt) is too small for the A in LaTeX.
+       % for 10pt running text, lllsize (8pt) is too small for the A in LaTeX.
        % Revert to plain's \scriptsize, which is 7pt.
        \count255=\the\fam $\fam\count255 \scriptstyle A$%
      \else
        % For 11pt, we can use our lllsize.
-       \selectfonts\lllsize A%
+       \switchtolllsize A%
      \fi
      }%
      \vss
@@ -2950,11 +3431,16 @@ end
   \TeX
 }
 
-% Some math mode symbols.
-\def\bullet{$\ptexbullet$}
-\def\geq{\ifmmode \ge\else $\ge$\fi}
-\def\leq{\ifmmode \le\else $\le$\fi}
-\def\minus{\ifmmode -\else $-$\fi}
+% Some math mode symbols.  Define \ensuremath to switch into math mode
+% unless we are already there.  Expansion tricks may not be needed here,
+% but safer, and can't hurt.
+\def\ensuremath{\ifmmode \expandafter\asis \else\expandafter\ensuredmath \fi}
+\def\ensuredmath#1{$\relax#1$}
+%
+\def\bullet{\ensuremath\ptexbullet}
+\def\geq{\ensuremath\ge}
+\def\leq{\ensuremath\le}
+\def\minus{\ensuremath-}
 
 % @dots{} outputs an ellipsis using the current font.
 % We do .5em per period so that it has the same spacing in the cm
@@ -3002,7 +3488,7 @@ end
 %
 \newbox\errorbox
 %
-{\tentt \global\dimen0 = 3em}% Width of the box.
+{\ttfont \global\dimen0 = 3em}% Width of the box.
 \dimen2 = .55pt % Thickness of rules
 % The text. (`r' is open on the right, `e' somewhat less so on the left.)
 \setbox0 = \hbox{\kern-.75pt \reducedsf \putworderror\kern-1.5pt}
@@ -3118,20 +3604,32 @@ end
 \def\Eogonek{{\ecfont \char"86}}\def\macrocharE{E}
 \def\eogonek{{\ecfont \char"A6}}\def\macrochare{e}
 %
-% Use the ec* fonts (cm-super in outline format) for non-CM glyphs.
-\def\ecfont{%
+% Use the European Computer Modern fonts (cm-super in outline format)
+% for non-CM glyphs.  That is ec* for regular text and tc* for the text
+% companion symbols (LaTeX TS1 encoding).  Both are part of the ec
+% package and follow the same conventions.
+% 
+\def\ecfont{\etcfont{e}}
+\def\tcfont{\etcfont{t}}
+%
+\def\etcfont#1{%
   % We can't distinguish serif/sans and italic/slanted, but this
   % is used for crude hacks anyway (like adding French and German
   % quotes to documents typeset with CM, where we lose kerning), so
   % hopefully nobody will notice/care.
   \edef\ecsize{\csname\curfontsize ecsize\endcsname}%
   \edef\nominalsize{\csname\curfontsize nominalsize\endcsname}%
-  \ifx\curfontstyle\bfstylename
-    % bold:
-    \font\thisecfont = ecb\ifusingit{i}{x}\ecsize \space at \nominalsize
-  \else
-    % regular:
-    \font\thisecfont = ec\ifusingit{ti}{rm}\ecsize \space at \nominalsize
+  \ifmonospace
+    % typewriter:
+    \font\thisecfont = #1ctt\ecsize \space at \nominalsize
+  \else
+    \ifx\curfontstyle\bfstylename
+      % bold:
+      \font\thisecfont = #1cb\ifusingit{i}{x}\ecsize \space at \nominalsize
+    \else
+      % regular:
+      \font\thisecfont = #1c\ifusingit{ti}{rm}\ecsize \space at \nominalsize
+    \fi
   \fi
   \thisecfont
 }
@@ -3141,7 +3639,7 @@ end
 % Adapted from the plain.tex definition of \copyright.
 %
 \def\registeredsymbol{%
-  $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}%
+  $^{{\ooalign{\hfil\raise.07ex\hbox{\switchtolllsize R}%
                \hfil\crcr\Orb}}%
     }$%
 }
@@ -3174,13 +3672,16 @@ end
 \newif\ifseenauthor
 \newif\iffinishedtitlepage
 
-% Do an implicit @contents or @shortcontents after @end titlepage if the
-% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
-%
-\newif\ifsetcontentsaftertitlepage
- \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
-\newif\ifsetshortcontentsaftertitlepage
- \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
+% @setcontentsaftertitlepage used to do an implicit @contents or
+% @shortcontents after @end titlepage, but it is now obsolete.
+\def\setcontentsaftertitlepage{%
+  \errmessage{@setcontentsaftertitlepage has been removed as a Texinfo
+              command; move your @contents command if you want the contents
+              after the title page.}}%
+\def\setshortcontentsaftertitlepage{%
+  \errmessage{@setshortcontentsaftertitlepage has been removed as a Texinfo
+              command; move your @shortcontents and @contents commands if you 
+              want the contents after the title page.}}%
 
 \parseargdef\shorttitlepage{%
   \begingroup \hbox{}\vskip 1.5in \chaprm \centerline{#1}%
@@ -3222,20 +3723,6 @@ end
   % Need this before the \...aftertitlepage checks so that if they are
   % in effect the toc pages will come out with page numbers.
   \HEADINGSon
-  %
-  % If they want short, they certainly want long too.
-  \ifsetshortcontentsaftertitlepage
-    \shortcontents
-    \contents
-    \global\let\shortcontents = \relax
-    \global\let\contents = \relax
-  \fi
-  %
-  \ifsetcontentsaftertitlepage
-    \contents
-    \global\let\contents = \relax
-    \global\let\shortcontents = \relax
-  \fi
 }
 
 \def\finishtitlepage{%
@@ -3244,14 +3731,27 @@ end
   \finishedtitlepagetrue
 }
 
+% Settings used for typesetting titles: no hyphenation, no indentation,
+% don't worry much about spacing, ragged right.  This should be used
+% inside a \vbox, and fonts need to be set appropriately first. \par should
+% be specified before the end of the \vbox, since a vbox is a group.
+% 
+\def\raggedtitlesettings{%
+  \rm
+  \hyphenpenalty=10000
+  \parindent=0pt
+  \tolerance=5000
+  \ptexraggedright
+}
+
 % Macros to be used within @titlepage:
 
-\let\subtitlerm=\tenrm
+\let\subtitlerm=\rmfont
 \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}
 
 \parseargdef\title{%
   \checkenv\titlepage
-  \leftline{\titlefonts\rmisbold #1}
+  \vbox{\titlefonts \raggedtitlesettings #1\par}%
   % print a rule at the page bottom also.
   \finishedtitlepagefalse
   \vskip4pt \hrule height 4pt width \hsize \vskip4pt
@@ -3272,7 +3772,7 @@ end
   \else
     \checkenv\titlepage
     \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi
-    {\secfonts\rmisbold \leftline{#1}}%
+    {\secfonts\rm \leftline{#1}}%
   \fi
 }
 
@@ -3286,7 +3786,7 @@ end
 \newtoks\evenfootline    % footline on even pages
 \newtoks\oddfootline     % footline on odd pages
 
-% Now make TeX use those variables
+% Now make \makeheadline and \makefootline in Plain TeX use those variables
 \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
                             \else \the\evenheadline \fi}}
 \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
@@ -3325,7 +3825,7 @@ end
   %
   % Leave some space for the footline.  Hopefully ok to assume
   % @evenfooting will not be used by itself.
-  \global\advance\pageheight by -12pt
+  \global\advance\txipageheight by -12pt
   \global\advance\vsize by -12pt
 }
 
@@ -3342,13 +3842,17 @@ end
 % @everyheadingmarks
 % @everyfootingmarks
 
+% These define \getoddheadingmarks, \getevenheadingmarks,
+% \getoddfootingmarks, and \getevenfootingmarks, each to one of
+% \gettopheadingmarks, \getbottomheadingmarks.
+%
 \def\evenheadingmarks{\headingmarks{even}{heading}}
 \def\oddheadingmarks{\headingmarks{odd}{heading}}
 \def\evenfootingmarks{\headingmarks{even}{footing}}
 \def\oddfootingmarks{\headingmarks{odd}{footing}}
-\def\everyheadingmarks#1 {\headingmarks{even}{heading}{#1}
+\parseargdef\everyheadingmarks{\headingmarks{even}{heading}{#1}
                           \headingmarks{odd}{heading}{#1} }
-\def\everyfootingmarks#1 {\headingmarks{even}{footing}{#1}
+\parseargdef\everyfootingmarks{\headingmarks{even}{footing}{#1}
                           \headingmarks{odd}{footing}{#1} }
 % #1 = even/odd, #2 = heading/footing, #3 = top/bottom.
 \def\headingmarks#1#2#3 {%
@@ -3369,7 +3873,7 @@ end
 % By default, they are off at the start of a document,
 % and turned `on' after @end titlepage.
 
-\def\headings #1 {\csname HEADINGS#1\endcsname}
+\parseargdef\headings{\csname HEADINGS#1\endcsname}
 
 \def\headingsoff{% non-global headings elimination
   \evenheadline={\hfil}\evenfootline={\hfil}%
@@ -3389,7 +3893,7 @@ end
 \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}
 \global\evenheadline={\line{\folio\hfil\thistitle}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapterheading\hfil\folio}}
 \global\let\contentsalignmacro = \chapoddpage
 }
 \let\contentsalignmacro = \chappager
@@ -3400,8 +3904,8 @@ end
 \global\pageno=1
 \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}
-\global\evenheadline={\line{\thischapter\hfil\folio}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\evenheadline={\line{\thischapterheading\hfil\folio}}
+\global\oddheadline={\line{\thischapterheading\hfil\folio}}
 \global\let\contentsalignmacro = \chappager
 }
 \def\HEADINGSon{\HEADINGSdouble}
@@ -3412,7 +3916,7 @@ end
 \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}
 \global\evenheadline={\line{\folio\hfil\thistitle}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapterheading\hfil\folio}}
 \global\let\contentsalignmacro = \chapoddpage
 }
 
@@ -3420,8 +3924,8 @@ end
 \def\HEADINGSsinglex{%
 \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}
-\global\evenheadline={\line{\thischapter\hfil\folio}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\evenheadline={\line{\thischapterheading\hfil\folio}}
+\global\oddheadline={\line{\thischapterheading\hfil\folio}}
 \global\let\contentsalignmacro = \chappager
 }
 
@@ -3599,7 +4103,7 @@ end
   \parskip=\smallskipamount
   \ifdim\parskip=0pt \parskip=2pt \fi
   %
-  % Try typesetting the item mark that if the document erroneously says
+  % Try typesetting the item mark so that if the document erroneously says
   % something like @itemize @samp (intending @table), there's an error
   % right away at the @itemize.  It's not the best error message in the
   % world, but it's better than leaving it to the @item.  This means if
@@ -3631,7 +4135,12 @@ end
    \noindent
    \hbox to 0pt{\hss \itemcontents \kern\itemmargin}%
    %
-   \vadjust{\penalty 1200}}% not good to break after first line of item.
+   \ifinner\else
+     \vadjust{\penalty 1200}% not good to break after first line of item.
+   \fi
+   % We can be in inner vertical mode in a footnote, although an
+   % @itemize looks awful there.
+  }%
   \flushcr
 }
 
@@ -3849,19 +4358,23 @@ end
 }
 
 % multitable-only commands.
-%
-% @headitem starts a heading row, which we typeset in bold.
-% Assignments have to be global since we are inside the implicit group
-% of an alignment entry.  \everycr resets \everytab so we don't have to
+% 
+% @headitem starts a heading row, which we typeset in bold.  Assignments
+% have to be global since we are inside the implicit group of an
+% alignment entry.  \everycr below resets \everytab so we don't have to
 % undo it ourselves.
 \def\headitemfont{\b}% for people to use in the template row; not changeable
 \def\headitem{%
   \checkenv\multitable
   \crcr
+  \gdef\headitemcrhook{\nobreak}% attempt to avoid page break after headings
   \global\everytab={\bf}% can't use \headitemfont since the parsing differs
   \the\everytab % for the first item
 }%
 %
+% default for tables with no headings.
+\let\headitemcrhook=\relax
+%
 % A \tab used to include \hskip1sp.  But then the space in a template
 % line is not enough.  That is bad.  So let's go back to just `&' until
 % we again encounter the problem the 1sp was intended to solve.
@@ -3892,15 +4405,15 @@ end
   %
   \everycr = {%
     \noalign{%
-      \global\everytab={}%
+      \global\everytab={}% Reset from possible headitem.
       \global\colcount=0 % Reset the column counter.
-      % Check for saved footnotes, etc.
+      %
+      % Check for saved footnotes, etc.:
       \checkinserts
-      % Keeps underfull box messages off when table breaks over pages.
-      %\filbreak
-	% Maybe so, but it also creates really weird page breaks when the
-	% table breaks over pages. Wouldn't \vfil be better?  Wait until the
-	% problem manifests itself, so it can be fixed for real --karl.
+      %
+      % Perhaps a \nobreak, then reset:
+      \headitemcrhook
+      \global\let\headitemcrhook=\relax
     }%
   }%
   %
@@ -4139,7 +4652,7 @@ end
 \def\value{\begingroup\makevalueexpandable\valuexxx}
 \def\valuexxx#1{\expandablevalue{#1}\endgroup}
 {
-  \catcode`\- = \active \catcode`\_ = \active
+  \catcode`\-=\active \catcode`\_=\active
   %
   \gdef\makevalueexpandable{%
     \let\value = \expandablevalue
@@ -4148,7 +4661,7 @@ end
     % ..., but we might end up with active ones in the argument if
     % we're called from @code, as @code{@value{foo-bar_}}, though.
     % So \let them to their normal equivalents.
-    \let-\realdash \let_\normalunderscore
+    \let-\normaldash \let_\normalunderscore
   }
 }
 
@@ -4159,7 +4672,12 @@ end
 % variable's value contains other Texinfo commands, it's almost certain
 % it will fail (although perhaps we could fix that with sufficient work
 % to do a one-level expansion on the result, instead of complete).
-%
+% 
+% Unfortunately, this has the consequence that when _ is in the *value*
+% of an @set, it does not print properly in the roman fonts (get the cmr
+% dot accent at position 126 instead).  No fix comes to mind, and it's
+% been this way since 2003 or earlier, so just ignore it.
+% 
 \def\expandablevalue#1{%
   \expandafter\ifx\csname SET#1\endcsname\relax
     {[No value for ``#1'']}%
@@ -4169,10 +4687,36 @@ end
   \fi
 }
 
+% Like \expandablevalue, but completely expandable (the \message in the
+% definition above operates at the execution level of TeX).  Used when
+% writing to auxiliary files, due to the expansion that \write does.
+% If flag is undefined, pass through an unexpanded @value command: maybe it 
+% will be set by the time it is read back in.
+%
+% NB flag names containing - or _ may not work here.
+\def\dummyvalue#1{%
+  \expandafter\ifx\csname SET#1\endcsname\relax
+    \noexpand\value{#1}%
+  \else
+    \csname SET#1\endcsname
+  \fi
+}
+
+% Used for @value's in index entries to form the sort key: expand the @value
+% if possible, otherwise sort late.
+\def\indexnofontsvalue#1{%
+  \expandafter\ifx\csname SET#1\endcsname\relax
+    ZZZZZZZ
+  \else
+    \csname SET#1\endcsname
+  \fi
+}
+
 % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
 % with @set.
-%
-% To get special treatment of `@end ifset,' call \makeond and the redefine.
+% 
+% To get the special treatment we need for `@end ifset,' we call
+% \makecond and then redefine.
 %
 \makecond{ifset}
 \def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}}
@@ -4188,7 +4732,7 @@ end
 }
 \def\ifsetfail{\doignore{ifset}}
 
-% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
+% @ifclear VAR ... @end executes the `...' iff VAR has never been
 % defined with @set, or has been undefined with @clear.
 %
 % The `\else' inside the `\doifset' parameter is a trick to reuse the
@@ -4199,6 +4743,35 @@ end
 \def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
 \def\ifclearfail{\doignore{ifclear}}
 
+% @ifcommandisdefined CMD ... @end executes the `...' if CMD (written
+% without the @) is in fact defined.  We can only feasibly check at the
+% TeX level, so something like `mathcode' is going to considered
+% defined even though it is not a Texinfo command.
+% 
+\makecond{ifcommanddefined}
+\def\ifcommanddefined{\parsearg{\doifcmddefined{\let\next=\ifcmddefinedfail}}}
+%
+\def\doifcmddefined#1#2{{%
+    \makevalueexpandable
+    \let\next=\empty
+    \expandafter\ifx\csname #2\endcsname\relax
+      #1% If not defined, \let\next as above.
+    \fi
+    \expandafter
+  }\next
+}
+\def\ifcmddefinedfail{\doignore{ifcommanddefined}}
+
+% @ifcommandnotdefined CMD ... handled similar to @ifclear above.
+\makecond{ifcommandnotdefined}
+\def\ifcommandnotdefined{%
+  \parsearg{\doifcmddefined{\else \let\next=\ifcmdnotdefinedfail}}}
+\def\ifcmdnotdefinedfail{\doignore{ifcommandnotdefined}}
+
+% Set the `txicommandconditionals' variable, so documents have a way to
+% test if the @ifcommand...defined conditionals are available.
+\set txicommandconditionals
+
 % @dircategory CATEGORY  -- specify a category of the dir file
 % which this file should belong to.  Ignore this in TeX.
 \let\dircategory=\comment
@@ -4214,19 +4787,16 @@ end
 % except not \outer, so it can be used within macros and \if's.
 \edef\newwrite{\makecsname{ptexnewwrite}}
 
-% \newindex {foo} defines an index named foo.
-% It automatically defines \fooindex such that
-% \fooindex ...rest of line... puts an entry in the index foo.
-% It also defines \fooindfile to be the number of the output channel for
-% the file that accumulates this index.  The file's extension is foo.
+% \newindex {foo} defines an index named IX.
+% It automatically defines \IXindex such that
+% \IXindex ...rest of line... puts an entry in the index IX.
+% It also defines \IXindfile to be the number of the output channel for
+% the file that accumulates this index.  The file's extension is IX.
 % The name of an index should be no more than 2 characters long
 % for the sake of vms.
 %
 \def\newindex#1{%
-  \iflinks
-    \expandafter\newwrite \csname#1indfile\endcsname
-    \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
-  \fi
+  \expandafter\chardef\csname#1indfile\endcsname=0
   \expandafter\xdef\csname#1index\endcsname{%     % Define @#1index
     \noexpand\doindex{#1}}
 }
@@ -4240,14 +4810,19 @@ end
 \def\defcodeindex{\parsearg\newcodeindex}
 %
 \def\newcodeindex#1{%
-  \iflinks
-    \expandafter\newwrite \csname#1indfile\endcsname
-    \openout \csname#1indfile\endcsname \jobname.#1
-  \fi
+  \expandafter\chardef\csname#1indfile\endcsname=0
   \expandafter\xdef\csname#1index\endcsname{%
     \noexpand\docodeindex{#1}}%
 }
 
+% The default indices:
+\newindex{cp}%      concepts,
+\newcodeindex{fn}%  functions,
+\newcodeindex{vr}%  variables,
+\newcodeindex{tp}%  types,
+\newcodeindex{ky}%  keys
+\newcodeindex{pg}%  and programs.
+
 
 % @synindex foo bar    makes index foo feed into index bar.
 % Do this instead of @defindex foo if you don't want it as a separate index.
@@ -4261,14 +4836,7 @@ end
 % #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
 % #3 the target index (bar).
 \def\dosynindex#1#2#3{%
-  % Only do \closeout if we haven't already done it, else we'll end up
-  % closing the target index.
-  \expandafter \ifx\csname donesynindex#2\endcsname \relax
-    % The \closeout helps reduce unnecessary open files; the limit on the
-    % Acorn RISC OS is a mere 16 files.
-    \expandafter\closeout\csname#2indfile\endcsname
-    \expandafter\let\csname donesynindex#2\endcsname = 1
-  \fi
+  \requireopenindexfile{#3}%
   % redefine \fooindfile:
   \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
   \expandafter\let\csname#2indfile\endcsname=\temp
@@ -4276,108 +4844,72 @@ end
   \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
 }
 
-% Define \doindex, the driver for all \fooindex macros.
+% Define \doindex, the driver for all index macros.
 % Argument #1 is generated by the calling \fooindex macro,
-%  and it is "foo", the name of the index.
-
-% \doindex just uses \parsearg; it calls \doind for the actual work.
-% This is because \doind is more useful to call from other macros.
-
-% There is also \dosubind {index}{topic}{subtopic}
-% which makes an entry in a two-level index such as the operation index.
+% and it is the two-letter name of the index.
 
-\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
-\def\singleindexer #1{\doind{\indexname}{#1}}
+\def\doindex#1{\edef\indexname{#1}\parsearg\doindexxxx}
+\def\doindexxxx #1{\doind{\indexname}{#1}}
 
 % like the previous two, but they put @code around the argument.
-\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
-\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
+\def\docodeindex#1{\edef\indexname{#1}\parsearg\docodeindexxxx}
+\def\docodeindexxxx #1{\doind{\indexname}{\code{#1}}}
 
-% Take care of Texinfo commands that can appear in an index entry.
-% Since there are some commands we want to expand, and others we don't,
-% we have to laboriously prevent expansion for those that we don't.
+
+% Used when writing an index entry out to an index file to prevent
+% expansion of Texinfo commands that can appear in an index entry.
 %
 \def\indexdummies{%
   \escapechar = `\\     % use backslash in output files.
-  \def\@{@}% change to @@ when we switch to @ as escape char in index files.
-  \def\ {\realbackslash\space }%
-  %
-  % Need these unexpandable (because we define \tt as a dummy)
-  % definitions when @{ or @} appear in index entry text.  Also, more
-  % complicated, when \tex is in effect and \{ is a \delimiter again.
-  % We can't use \lbracecmd and \rbracecmd because texindex assumes
-  % braces and backslashes are used only as delimiters.  Perhaps we
-  % should define @lbrace and @rbrace commands a la @comma.
-  \def\{{{\tt\char123}}%
-  \def\}{{\tt\char125}}%
-  %
-  % I don't entirely understand this, but when an index entry is
-  % generated from a macro call, the \endinput which \scanmacro inserts
-  % causes processing to be prematurely terminated.  This is,
-  % apparently, because \indexsorttmp is fully expanded, and \endinput
-  % is an expandable command.  The redefinition below makes \endinput
-  % disappear altogether for that purpose -- although logging shows that
-  % processing continues to some further point.  On the other hand, it
-  % seems \endinput does not hurt in the printed index arg, since that
-  % is still getting written without apparent harm.
-  %
-  % Sample source (mac-idx3.tex, reported by Graham Percival to
-  % help-texinfo, 22may06):
-  % @macro funindex {WORD}
-  % @findex xyz
-  % @end macro
-  % ...
-  % @funindex commtest
-  %
-  % The above is not enough to reproduce the bug, but it gives the flavor.
-  %
-  % Sample whatsit resulting:
-  % .@write3{\entry{xyz}{@folio }{@code {xyz@endinput }}}
+  \definedummyletter\@%
+  \definedummyletter\ %
   %
-  % So:
-  \let\endinput = \empty
+  % For texindex which always views { and } as separators.
+  \def\{{\lbracechar{}}%
+  \def\}{\rbracechar{}}%
   %
   % Do the redefinitions.
-  \commondummies
+  \definedummies
 }
 
-% For the aux and toc files, @ is the escape character.  So we want to
-% redefine everything using @ as the escape character (instead of
-% \realbackslash, still used for index files).  When everything uses @,
-% this will be simpler.
+% Used for the aux and toc files, where @ is the escape character.
 %
 \def\atdummies{%
-  \def\@{@@}%
-  \def\ {@ }%
-  \let\{ = \lbraceatcmd
-  \let\} = \rbraceatcmd
+  \definedummyletter\@%
+  \definedummyletter\ %
+  \definedummyletter\{%
+  \definedummyletter\}%
   %
   % Do the redefinitions.
-  \commondummies
+  \definedummies
   \otherbackslash
 }
 
-% Called from \indexdummies and \atdummies.
-%
-\def\commondummies{%
-  %
-  % \definedummyword defines \#1 as \string\#1\space, thus effectively
-  % preventing its expansion.  This is used only for control words,
-  % not control letters, because the \space would be incorrect for
-  % control characters, but is needed to separate the control word
-  % from whatever follows.
-  %
-  % For control letters, we have \definedummyletter, which omits the
-  % space.
-  %
-  % These can be used both for control words that take an argument and
-  % those that do not.  If it is followed by {arg} in the input, then
-  % that will dutifully get written to the index (or wherever).
-  %
-  \def\definedummyword  ##1{\def##1{\string##1\space}}%
-  \def\definedummyletter##1{\def##1{\string##1}}%
-  \let\definedummyaccent\definedummyletter
-  %
+% \definedummyword defines \#1 as \string\#1\space, thus effectively
+% preventing its expansion.  This is used only for control words,
+% not control letters, because the \space would be incorrect for
+% control characters, but is needed to separate the control word
+% from whatever follows.
+%
+% These can be used both for control words that take an argument and
+% those that do not.  If it is followed by {arg} in the input, then
+% that will dutifully get written to the index (or wherever).
+%
+% For control letters, we have \definedummyletter, which omits the
+% space.
+%
+\def\definedummyword  #1{\def#1{\string#1\space}}%
+\def\definedummyletter#1{\def#1{\string#1}}%
+\let\definedummyaccent\definedummyletter
+
+% Called from \indexdummies and \atdummies, to effectively prevent
+% the expansion of commands.
+%
+\def\definedummies{%
+  %
+  \let\commondummyword\definedummyword
+  \let\commondummyletter\definedummyletter
+  \let\commondummyaccent\definedummyaccent
   \commondummiesnofonts
   %
   \definedummyletter\_%
@@ -4418,6 +4950,7 @@ end
   \definedummyword\TeX
   %
   % Assorted special characters.
+  \definedummyword\atchar
   \definedummyword\arrow
   \definedummyword\bullet
   \definedummyword\comma
@@ -4435,7 +4968,9 @@ end
   \definedummyword\guillemetright
   \definedummyword\guilsinglleft
   \definedummyword\guilsinglright
+  \definedummyword\lbracechar
   \definedummyword\leq
+  \definedummyword\mathopsup
   \definedummyword\minus
   \definedummyword\ogonek
   \definedummyword\pounds
@@ -4447,86 +4982,138 @@ end
   \definedummyword\quoteleft
   \definedummyword\quoteright
   \definedummyword\quotesinglbase
+  \definedummyword\rbracechar
   \definedummyword\result
+  \definedummyword\sub
+  \definedummyword\sup
   \definedummyword\textdegree
   %
   % We want to disable all macros so that they are not expanded by \write.
   \macrolist
+  \let\value\dummyvalue
   %
   \normalturnoffactive
-  %
-  % Handle some cases of @value -- where it does not contain any
-  % (non-fully-expandable) commands.
-  \makevalueexpandable
 }
 
-% \commondummiesnofonts: common to \commondummies and \indexnofonts.
+% \commondummiesnofonts: common to \definedummies and \indexnofonts.
+% Define \commondummyletter, \commondummyaccent and \commondummyword before
+% using.  Used for accents, font commands, and various control letters.
 %
 \def\commondummiesnofonts{%
   % Control letters and accents.
-  \definedummyletter\!%
-  \definedummyaccent\"%
-  \definedummyaccent\'%
-  \definedummyletter\*%
-  \definedummyaccent\,%
-  \definedummyletter\.%
-  \definedummyletter\/%
-  \definedummyletter\:%
-  \definedummyaccent\=%
-  \definedummyletter\?%
-  \definedummyaccent\^%
-  \definedummyaccent\`%
-  \definedummyaccent\~%
-  \definedummyword\u
-  \definedummyword\v
-  \definedummyword\H
-  \definedummyword\dotaccent
-  \definedummyword\ogonek
-  \definedummyword\ringaccent
-  \definedummyword\tieaccent
-  \definedummyword\ubaraccent
-  \definedummyword\udotaccent
-  \definedummyword\dotless
+  \commondummyletter\!%
+  \commondummyaccent\"%
+  \commondummyaccent\'%
+  \commondummyletter\*%
+  \commondummyaccent\,%
+  \commondummyletter\.%
+  \commondummyletter\/%
+  \commondummyletter\:%
+  \commondummyaccent\=%
+  \commondummyletter\?%
+  \commondummyaccent\^%
+  \commondummyaccent\`%
+  \commondummyaccent\~%
+  \commondummyword\u
+  \commondummyword\v
+  \commondummyword\H
+  \commondummyword\dotaccent
+  \commondummyword\ogonek
+  \commondummyword\ringaccent
+  \commondummyword\tieaccent
+  \commondummyword\ubaraccent
+  \commondummyword\udotaccent
+  \commondummyword\dotless
   %
   % Texinfo font commands.
-  \definedummyword\b
-  \definedummyword\i
-  \definedummyword\r
-  \definedummyword\sansserif
-  \definedummyword\sc
-  \definedummyword\slanted
-  \definedummyword\t
+  \commondummyword\b
+  \commondummyword\i
+  \commondummyword\r
+  \commondummyword\sansserif
+  \commondummyword\sc
+  \commondummyword\slanted
+  \commondummyword\t
   %
   % Commands that take arguments.
-  \definedummyword\acronym
-  \definedummyword\anchor
-  \definedummyword\cite
-  \definedummyword\code
-  \definedummyword\command
-  \definedummyword\dfn
-  \definedummyword\dmn
-  \definedummyword\email
-  \definedummyword\emph
-  \definedummyword\env
-  \definedummyword\file
-  \definedummyword\indicateurl
-  \definedummyword\kbd
-  \definedummyword\key
-  \definedummyword\math
-  \definedummyword\option
-  \definedummyword\pxref
-  \definedummyword\ref
-  \definedummyword\samp
-  \definedummyword\strong
-  \definedummyword\tie
-  \definedummyword\uref
-  \definedummyword\url
-  \definedummyword\var
-  \definedummyword\verb
-  \definedummyword\w
-  \definedummyword\xref
+  \commondummyword\abbr
+  \commondummyword\acronym
+  \commondummyword\anchor
+  \commondummyword\cite
+  \commondummyword\code
+  \commondummyword\command
+  \commondummyword\dfn
+  \commondummyword\dmn
+  \commondummyword\email
+  \commondummyword\emph
+  \commondummyword\env
+  \commondummyword\file
+  \commondummyword\image
+  \commondummyword\indicateurl
+  \commondummyword\inforef
+  \commondummyword\kbd
+  \commondummyword\key
+  \commondummyword\math
+  \commondummyword\option
+  \commondummyword\pxref
+  \commondummyword\ref
+  \commondummyword\samp
+  \commondummyword\strong
+  \commondummyword\tie
+  \commondummyword\U
+  \commondummyword\uref
+  \commondummyword\url
+  \commondummyword\var
+  \commondummyword\verb
+  \commondummyword\w
+  \commondummyword\xref
+}
+
+% For testing: output @{ and @} in index sort strings as \{ and \}.
+\newif\ifusebracesinindexes
+
+\let\indexlbrace\relax
+\let\indexrbrace\relax
+
+{\catcode`\@=0
+\catcode`\\=13
+  @gdef@backslashdisappear{@def\{}}
+}
+
+{
+\catcode`\<=13
+\catcode`\-=13
+\catcode`\`=13
+  \gdef\indexnonalnumdisappear{%
+    \expandafter\ifx\csname SETtxiindexlquoteignore\endcsname\relax\else
+      % @set txiindexlquoteignore makes us ignore left quotes in the sort term.
+      % (Introduced for FSFS 2nd ed.)
+      \let`=\empty
+    \fi
+    %
+    \expandafter\ifx\csname SETtxiindexbackslashignore\endcsname\relax\else
+      \backslashdisappear
+    \fi
+    %
+    \expandafter\ifx\csname SETtxiindexhyphenignore\endcsname\relax\else
+      \def-{}%
+    \fi
+    \expandafter\ifx\csname SETtxiindexlessthanignore\endcsname\relax\else
+      \def<{}%
+    \fi
+    \expandafter\ifx\csname SETtxiindexatsignignore\endcsname\relax\else
+      \def\@{}%
+    \fi
+  }
+
+  \gdef\indexnonalnumreappear{%
+    \useindexbackslash
+    \let-\normaldash
+    \let<\normalless
+    \def\@{@}%
+  }
 }
 
+
 % \indexnofonts is used when outputting the strings to sort the index
 % by, and when constructing control sequence names.  It eliminates all
 % control sequences and just writes whatever the best ASCII sort string
@@ -4534,12 +5121,11 @@ end
 %
 \def\indexnofonts{%
   % Accent commands should become @asis.
-  \def\definedummyaccent##1{\let##1\asis}%
+  \def\commondummyaccent##1{\let##1\asis}%
   % We can just ignore other control letters.
-  \def\definedummyletter##1{\let##1\empty}%
+  \def\commondummyletter##1{\let##1\empty}%
   % All control words become @asis by default; overrides below.
-  \let\definedummyword\definedummyaccent
-  %
+  \let\commondummyword\commondummyaccent
   \commondummiesnofonts
   %
   % Don't no-op \tt, since it isn't a user-level command
@@ -4552,11 +5138,10 @@ end
   \def\_{\normalunderscore}%
   \def\-{}% @- shouldn't affect sorting
   %
-  % Unfortunately, texindex is not prepared to handle braces in the
-  % content at all.  So for index sorting, we map @{ and @} to strings
-  % starting with |, since that ASCII character is between ASCII { and }.
-  \def\{{|a}%
-  \def\}{|b}%
+  \uccode`\1=`\{ \uppercase{\def\{{1}}%
+  \uccode`\1=`\} \uppercase{\def\}{1}}%
+  \let\lbracechar\{%
+  \let\rbracechar\}%
   %
   % Non-English letters.
   \def\AA{AA}%
@@ -4565,7 +5150,7 @@ end
   \def\L{L}%
   \def\OE{OE}%
   \def\O{O}%
-  \def\TH{ZZZ}%
+  \def\TH{TH}%
   \def\aa{aa}%
   \def\ae{ae}%
   \def\dh{dzz}%
@@ -4577,45 +5162,45 @@ end
   \def\o{o}%
   \def\questiondown{?}%
   \def\ss{ss}%
-  \def\th{zzz}%
+  \def\th{th}%
   %
   \def\LaTeX{LaTeX}%
   \def\TeX{TeX}%
   %
-  % Assorted special characters.
-  % (The following {} will end up in the sort string, but that's ok.)
-  \def\arrow{->}%
-  \def\bullet{bullet}%
-  \def\comma{,}%
-  \def\copyright{copyright}%
-  \def\dots{...}%
-  \def\enddots{...}%
-  \def\equiv{==}%
-  \def\error{error}%
-  \def\euro{euro}%
-  \def\expansion{==>}%
-  \def\geq{>=}%
-  \def\guillemetleft{<<}%
-  \def\guillemetright{>>}%
-  \def\guilsinglleft{<}%
-  \def\guilsinglright{>}%
-  \def\leq{<=}%
-  \def\minus{-}%
-  \def\point{.}%
-  \def\pounds{pounds}%
-  \def\print{-|}%
-  \def\quotedblbase{"}%
-  \def\quotedblleft{"}%
-  \def\quotedblright{"}%
-  \def\quoteleft{`}%
-  \def\quoteright{'}%
-  \def\quotesinglbase{,}%
-  \def\registeredsymbol{R}%
-  \def\result{=>}%
-  \def\textdegree{o}%
-  %
-  \expandafter\ifx\csname SETtxiindexlquoteignore\endcsname\relax
-  \else \indexlquoteignore \fi
+  % Assorted special characters.  \defglyph gives the control sequence a
+  % definition that removes the {} that follows its use.
+  \defglyph\atchar{@}%
+  \defglyph\arrow{->}%
+  \defglyph\bullet{bullet}%
+  \defglyph\comma{,}%
+  \defglyph\copyright{copyright}%
+  \defglyph\dots{...}%
+  \defglyph\enddots{...}%
+  \defglyph\equiv{==}%
+  \defglyph\error{error}%
+  \defglyph\euro{euro}%
+  \defglyph\expansion{==>}%
+  \defglyph\geq{>=}%
+  \defglyph\guillemetleft{<<}%
+  \defglyph\guillemetright{>>}%
+  \defglyph\guilsinglleft{<}%
+  \defglyph\guilsinglright{>}%
+  \defglyph\leq{<=}%
+  \defglyph\lbracechar{\{}%
+  \defglyph\minus{-}%
+  \defglyph\point{.}%
+  \defglyph\pounds{pounds}%
+  \defglyph\print{-|}%
+  \defglyph\quotedblbase{"}%
+  \defglyph\quotedblleft{"}%
+  \defglyph\quotedblright{"}%
+  \defglyph\quoteleft{`}%
+  \defglyph\quoteright{'}%
+  \defglyph\quotesinglbase{,}%
+  \defglyph\rbracechar{\}}%
+  \defglyph\registeredsymbol{R}%
+  \defglyph\result{=>}%
+  \defglyph\textdegree{o}%
   %
   % We need to get rid of all macros, leaving only the arguments (if present).
   % Of course this is not nearly correct, but it is the best we can do for now.
@@ -4628,21 +5213,24 @@ end
   % goes to end-of-line is not handled.
   %
   \macrolist
+  \let\value\indexnofontsvalue
 }
+\def\defglyph#1#2{\def#1##1{#2}} % see above
+
+
 
-% Undocumented (for FSFS 2nd ed.): @set txiindexlquoteignore makes us
-% ignore left quotes in the sort term.
-{\catcode`\`=\active
- \gdef\indexlquoteignore{\let`=\empty}}
 
-\let\indexbackslash=0  %overridden during \printindex.
 \let\SETmarginindex=\relax % put index entries in margin (undocumented)?
 
 % Most index entries go through here, but \dosubind is the general case.
 % #1 is the index name, #2 is the entry text.
 \def\doind#1#2{\dosubind{#1}{#2}{}}
 
-% Workhorse for all \fooindexes.
+% There is also \dosubind {index}{topic}{subtopic}
+% which makes an entry in a two-level index such as the operation index.
+% TODO: Two-level index?  Operation index?
+
+% Workhorse for all indexes.
 % #1 is name of index, #2 is stuff to put there, #3 is subentry --
 % empty if called from \doind, as we usually are (the main exception
 % is with most defuns, which call us directly).
@@ -4650,6 +5238,7 @@ end
 \def\dosubind#1#2#3{%
   \iflinks
   {%
+    \requireopenindexfile{#1}%
     % Store the main index entry text (including the third arg).
     \toks0 = {#2}%
     % If third arg is present, precede it with a space.
@@ -4665,7 +5254,50 @@ end
   \fi
 }
 
-% Write the entry in \toks0 to the index file:
+% Check if an index file has been opened, and if not, open it.
+\def\requireopenindexfile#1{%
+\ifnum\csname #1indfile\endcsname=0
+  \expandafter\newwrite \csname#1indfile\endcsname
+  \edef\suffix{#1}%
+  % A .fls suffix would conflict with the file extension for the output
+  % of -recorder, so use .f1s instead.
+  \ifx\suffix\indexisfl\def\suffix{f1}\fi
+  % Open the file
+  \immediate\openout\csname#1indfile\endcsname \jobname.\suffix
+  % Using \immediate above here prevents an object entering into the current 
+  % box, which could confound checks such as those in \safewhatsit for
+  % preceding skips.
+  \typeout{Writing index file \jobname.\suffix}%
+\fi}
+\def\indexisfl{fl}
+
+% Output \ as {\indexbackslash}, because \ is an escape character in
+% the index files.
+\let\indexbackslash=\relax
+{\catcode`\@=0 \catcode`\\=\active
+  @gdef@useindexbackslash{@def\{{@indexbackslash}}}
+}
+
+% Definition for writing index entry text.
+\def\sortas#1{\ignorespaces}%
+
+% Definition for writing index entry sort key.  Should occur at the at
+% the beginning of the index entry, like
+%     @cindex @sortas{september} \september
+% The \ignorespaces takes care of following space, but there's no way
+% to remove space before it.
+{
+\catcode`\-=13
+\gdef\indexwritesortas{%
+  \begingroup
+  \indexnonalnumreappear
+  \indexwritesortasxxx}
+\gdef\indexwritesortasxxx#1{%
+  \xdef\indexsortkey{#1}\endgroup}
+}
+
+
+% Write the entry in \toks0 to the index file.
 %
 \def\dosubindwrite{%
   % Put the index entry in the margin if desired.
@@ -4675,14 +5307,26 @@ end
   %
   % Remember, we are within a group.
   \indexdummies % Must do this here, since \bf, etc expand at this stage
-  \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now
-      % so it will be output as is; and it will print as backslash.
+  \useindexbackslash % \indexbackslash isn't defined now so it will be output 
+                     % as is; and it will print as backslash.
+  % The braces around \indexbrace are recognized by texindex.
   %
-  % Process the index entry with all font commands turned off, to
-  % get the string to sort by.
+  % Get the string to sort by, by processing the index entry with all
+  % font commands turned off.
   {\indexnofonts
-   \edef\temp{\the\toks0}% need full expansion
-   \xdef\indexsorttmp{\temp}%
+   \def\lbracechar{{\indexlbrace}}%
+   \def\rbracechar{{\indexrbrace}}%
+   \let\{=\lbracechar
+   \let\}=\rbracechar
+   \indexnonalnumdisappear
+   \xdef\indexsortkey{}%
+   \let\sortas=\indexwritesortas
+   \edef\temp{\the\toks0}%
+   \setbox\dummybox = \hbox{\temp}% Make sure to execute any \sortas
+   \ifx\indexsortkey\empty
+     \xdef\indexsortkey{\temp}%
+     \ifx\indexsortkey\empty\xdef\indexsortkey{ }\fi
+   \fi
   }%
   %
   % Set up the complete index entry, with both the sort key and
@@ -4692,10 +5336,11 @@ end
   % sorted result.
   \edef\temp{%
     \write\writeto{%
-      \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}%
+      \string\entry{\indexsortkey}{\noexpand\folio}{\the\toks0}}%
   }%
   \temp
 }
+\newbox\dummybox % used above
 
 % Take care of unwanted page breaks/skips around a whatsit:
 %
@@ -4732,10 +5377,9 @@ end
 %
 % ..., ready, GO:
 %
-\def\safewhatsit#1{%
-\ifhmode
+\def\safewhatsit#1{\ifhmode
   #1%
-\else
+ \else
   % \lastskip and \lastpenalty cannot both be nonzero simultaneously.
   \whatsitskip = \lastskip
   \edef\lastskipmacro{\the\lastskip}%
@@ -4759,7 +5403,6 @@ end
     % to re-insert the same penalty (values >10000 are used for various
     % signals); since we just inserted a non-discardable item, any
     % following glue (such as a \parskip) would be a breakpoint.  For example:
-    %
     %   @deffn deffn-whatever
     %   @vindex index-whatever
     %   Description.
@@ -4772,8 +5415,7 @@ end
     % (the whatsit from the \write), so we must insert a \nobreak.
     \nobreak\vskip\whatsitskip
   \fi
-\fi
-}
+\fi}
 
 % The index entry written in the file actually looks like
 %  \entry {sortstring}{page}{topic}
@@ -4823,52 +5465,107 @@ end
   % \initial {@}
   % as its first line, TeX doesn't complain about mismatched braces
   % (because it thinks @} is a control sequence).
-  \catcode`\@ = 11
-  \openin 1 \jobname.#1s
+  \catcode`\@ = 12
+  % See comment in \requireopenindexfile.
+  \def\indexname{#1}\ifx\indexname\indexisfl\def\indexname{f1}\fi
+  \openin 1 \jobname.\indexname s
   \ifeof 1
     % \enddoublecolumns gets confused if there is no text in the index,
     % and it loses the chapter title and the aux file entries for the
     % index.  The easiest way to prevent this problem is to make sure
     % there is some text.
     \putwordIndexNonexistent
+    \typeout{No file \jobname.\indexname s.}%
   \else
+    \catcode`\\ = 0
     %
     % If the index file exists but is empty, then \openin leaves \ifeof
     % false.  We have to make TeX try to read something from the file, so
     % it can discover if there is anything in it.
-    \read 1 to \temp
+    \read 1 to \thisline
     \ifeof 1
       \putwordIndexIsEmpty
     \else
       % Index files are almost Texinfo source, but we use \ as the escape
       % character.  It would be better to use @, but that's too big a change
       % to make right now.
-      \def\indexbackslash{\backslashcurfont}%
-      \catcode`\\ = 0
-      \escapechar = `\\
+      \def\indexbackslash{\ttbackslash}%
+      \let\indexlbrace\{   % Likewise, set these sequences for braces
+      \let\indexrbrace\}   % used in the sort key.
       \begindoublecolumns
-      \input \jobname.#1s
+      \let\entrywidowpenalty=\indexwidowpenalty
+      %
+      % Read input from the index file line by line.
+      \loopdo
+        \ifeof1
+          \let\firsttoken\relax
+        \else
+          \read 1 to \nextline
+          \edef\act{\gdef\noexpand\firsttoken{\getfirsttoken\nextline}}%
+          \act
+        \fi
+        \thisline
+        %
+        \ifeof1\else
+        \let\thisline\nextline
+      \repeat
+      %%
       \enddoublecolumns
     \fi
   \fi
   \closein 1
 \endgroup}
 
+\def\getfirsttoken#1{\expandafter\getfirsttokenx#1\endfirsttoken}
+\long\def\getfirsttokenx#1#2\endfirsttoken{\noexpand#1}
+
+\def\loopdo#1\repeat{\def\body{#1}\loopdoxxx}
+\def\loopdoxxx{\let\next=\relax\body\let\next=\loopdoxxx\fi\next}
+
 % These macros are used by the sorted index file itself.
 % Change them to control the appearance of the index.
 
-\def\initial#1{{%
-  % Some minor font changes for the special characters.
-  \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
-  %
+{\catcode`\/=13 \catcode`\-=13 \catcode`\^=13 \catcode`\~=13 \catcode`\_=13
+\catcode`\|=13 \catcode`\<=13 \catcode`\>=13 \catcode`\+=13 \catcode`\"=13
+\catcode`\$=3
+\gdef\initialglyphs{%
+  % Some changes for non-alphabetic characters.  Using the glyphs from the
+  % math fonts looks more consistent than the typewriter font used elsewhere
+  % for these characters.
+  \def\indexbackslash{\math{\backslash}}%
+  \let\\=\indexbackslash
+  %
+  % Can't get bold backslash so don't use bold forward slash
+  \catcode`\/=13
+  \def/{{\secrmnotbold \normalslash}}%
+  \def-{{\normaldash\normaldash}}% en dash `--'
+  \def^{{\chapbf \normalcaret}}%
+  \def~{{\chapbf \normaltilde}}%
+  \def\_{%
+     \leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }%
+  \def|{$\vert$}%
+  \def<{$\less$}%
+  \def>{$\gtr$}%
+  \def+{$\normalplus$}%
+}}
+
+\def\initial{%
+  \bgroup
+  \initialglyphs
+  \initialx
+}
+
+\def\initialx#1{%
   % Remove any glue we may have, we'll be inserting our own.
   \removelastskip
   %
   % We like breaks before the index initials, so insert a bonus.
+  % The glue before the bonus allows a little bit of space at the
+  % bottom of a column to reduce an increase in inter-line spacing.
   \nobreak
-  \vskip 0pt plus 3\baselineskip
-  \penalty 0
-  \vskip 0pt plus -3\baselineskip
+  \vskip 0pt plus 5\baselineskip
+  \penalty -300 
+  \vskip 0pt plus -5\baselineskip
   %
   % Typeset the initial.  Making this add up to a whole number of
   % baselineskips increases the chance of the dots lining up from column
@@ -4876,63 +5573,45 @@ end
   % we need before each entry, but it's better.
   %
   % No shrink because it confuses \balancecolumns.
-  \vskip 1.67\baselineskip plus .5\baselineskip
-  \leftline{\secbf #1}%
+  \vskip 1.67\baselineskip plus 1\baselineskip
+  \leftline{\secfonts \kern-0.05em \secbf #1}%
+  % \secfonts is inside the argument of \leftline so that the change of
+  % \baselineskip will not affect any glue inserted before the vbox that
+  % \leftline creates.
   % Do our best not to break after the initial.
   \nobreak
   \vskip .33\baselineskip plus .1\baselineskip
-}}
+  \egroup % \initialglyphs
+}
+
+\newdimen\entryrightmargin
+\entryrightmargin=0pt
 
 % \entry typesets a paragraph consisting of the text (#1), dot leaders, and
 % then page number (#2) flushed to the right margin.  It is used for index
 % and table of contents entries.  The paragraph is indented by \leftskip.
 %
-% A straightforward implementation would start like this:
-%	\def\entry#1#2{...
-% But this freezes the catcodes in the argument, and can cause problems to
-% @code, which sets - active.  This problem was fixed by a kludge---
-% ``-'' was active throughout whole index, but this isn't really right.
-% The right solution is to prevent \entry from swallowing the whole text.
-%                                 --kasal, 21nov03
 \def\entry{%
   \begingroup
     %
+    % For pdfTeX and XeTeX.
+    % The redefinition of \domark stops marks being added in \pdflink to 
+    % preserve coloured links across page boundaries.  Otherwise the marks
+    % would get in the way of \lastbox in \insertindexentrybox.
+    \let\domark\relax
+    %
     % Start a new paragraph if necessary, so our assignments below can't
     % affect previous text.
     \par
     %
-    % Do not fill out the last line with white space.
-    \parfillskip = 0in
-    %
     % No extra space above this paragraph.
     \parskip = 0in
     %
-    % Do not prefer a separate line ending with a hyphen to fewer lines.
-    \finalhyphendemerits = 0
-    %
-    % \hangindent is only relevant when the entry text and page number
-    % don't both fit on one line.  In that case, bob suggests starting the
-    % dots pretty far over on the line.  Unfortunately, a large
-    % indentation looks wrong when the entry text itself is broken across
-    % lines.  So we use a small indentation and put up with long leaders.
-    %
-    % \hangafter is reset to 1 (which is the value we want) at the start
-    % of each paragraph, so we need not do anything with that.
-    \hangindent = 2em
-    %
-    % When the entry text needs to be broken, just fill out the first line
-    % with blank space.
-    \rightskip = 0pt plus1fil
-    %
-    % A bit of stretch before each entry for the benefit of balancing
-    % columns.
-    \vskip 0pt plus1pt
-    %
     % When reading the text of entry, convert explicit line breaks
     % from @* into spaces.  The user might give these in long section
     % titles, for instance.
     \def\*{\unskip\space\ignorespaces}%
-    \def\entrybreak{\hfil\break}%
+    \def\entrybreak{\hfil\break}% An undocumented command
     %
     % Swallow the left brace of the text (first parameter):
     \afterassignment\doentry
@@ -4940,45 +5619,166 @@ end
 }
 \def\entrybreak{\unskip\space\ignorespaces}%
 \def\doentry{%
+    % Save the text of the entry
+    \global\setbox\boxA=\hbox\bgroup
     \bgroup % Instead of the swallowed brace.
       \noindent
       \aftergroup\finishentry
       % And now comes the text of the entry.
+      % Not absorbing as a macro argument reduces the chance of problems
+      % with catcodes occurring.
 }
-\def\finishentry#1{%
+{\catcode`\@=11
+\gdef\finishentry#1{%
+    \egroup % end box A
+    \dimen@ = \wd\boxA % Length of text of entry
+    \global\setbox\boxA=\hbox\bgroup\unhbox\boxA
     % #1 is the page number.
     %
-    % The following is kludged to not output a line of dots in the index if
-    % there are no page numbers.  The next person who breaks this will be
-    % cursed by a Unix daemon.
-    \setbox\boxA = \hbox{#1}%
-    \ifdim\wd\boxA = 0pt
-      \ %
+    % Get the width of the page numbers, and only use
+    % leaders if they are present.
+    \global\setbox\boxB = \hbox{#1}%
+    \ifdim\wd\boxB = 0pt
+      \null\nobreak\hfill\ %
     \else
       %
-      % If we must, put the page number on a line of its own, and fill out
-      % this line with blank space.  (The \hfil is overwhelmed with the
-      % fill leaders glue in \indexdotfill if the page number does fit.)
-      \hfil\penalty50
       \null\nobreak\indexdotfill % Have leaders before the page number.
       %
-      % The `\ ' here is removed by the implicit \unskip that TeX does as
-      % part of (the primitive) \par.  Without it, a spurious underfull
-      % \hbox ensues.
       \ifpdf
-	\pdfgettoks#1.%
-	\ \the\toksA
+        \pdfgettoks#1.%
+        \hskip\skip\thinshrinkable\the\toksA
       \else
-	\ #1%
+        \ifx\XeTeXrevision\thisisundefined
+          \hskip\skip\thinshrinkable #1%
+        \else
+          \pdfgettoks#1.%
+          \hskip\skip\thinshrinkable\the\toksA
+        \fi
       \fi
     \fi
-    \par
+    \egroup % end \boxA
+    \ifdim\wd\boxB = 0pt
+      \global\setbox\entryindexbox=\vbox{\unhbox\boxA}%
+    \else
+    \global\setbox\entryindexbox=\vbox\bgroup
+      % We want the text of the entries to be aligned to the left, and the
+      % page numbers to be aligned to the right.
+      %
+      \parindent = 0pt
+      \advance\leftskip by 0pt plus 1fil
+      \advance\leftskip by 0pt plus -1fill
+      \rightskip = 0pt plus -1fil
+      \advance\rightskip by 0pt plus 1fill
+      % Cause last line, which could consist of page numbers on their own
+      % if the list of page numbers is long, to be aligned to the right.
+      \parfillskip=0pt plus -1fill
+      %
+      \advance\rightskip by \entryrightmargin
+      % Determine how far we can stretch into the margin.
+      % This allows, e.g., "Appendix H  GNU Free Documentation License" to
+      % fit on one line in @letterpaper format.
+      \ifdim\entryrightmargin>2.1em
+        \dimen@i=2.1em
+      \else
+        \dimen@i=0em
+      \fi
+      \advance \parfillskip by 0pt minus 1\dimen@i
+      %
+      \dimen@ii = \hsize
+      \advance\dimen@ii by -1\leftskip
+      \advance\dimen@ii by -1\entryrightmargin
+      \advance\dimen@ii by 1\dimen@i
+      \ifdim\wd\boxA > \dimen@ii % If the entry doesn't fit in one line
+      \ifdim\dimen@ > 0.8\dimen@ii   % due to long index text
+        \dimen@ = 0.7\dimen@ % Try to split the text roughly evenly
+        \dimen@ii = \hsize
+        \ifnum\dimen@>\dimen@ii
+          % If the entry is too long, use the whole line
+          \dimen@ = \dimen@ii
+        \fi
+        \advance\leftskip by 0pt plus 1fill % ragged right
+        \advance \dimen@ by 1\rightskip
+        \parshape = 2 0pt \dimen@ 0em \dimen@ii
+        % Ideally we'd add a finite glue at the end of the first line only,
+        % instead of using \parshape with explicit line lengths, but TeX
+        % doesn't seem to provide a way to do such a thing.
+        %
+        \leftskip = 1em
+        \parindent = -1em
+      \fi\fi
+      \indent % start paragraph
+      \unhbox\boxA
+      %
+      % Do not prefer a separate line ending with a hyphen to fewer lines.
+      \finalhyphendemerits = 0
+      %
+      % Word spacing - no stretch
+      \spaceskip=\fontdimen2\font minus \fontdimen4\font
+      %
+      \linepenalty=1000  % Discourage line breaks.
+      \hyphenpenalty=5000  % Discourage hyphenation.
+      %
+      \par % format the paragraph
+    \egroup % The \vbox
+    \fi
   \endgroup
+  % delay text of entry until after penalty
+  \bgroup\aftergroup\insertindexentrybox
+  \entrywidowpenalty
+}}
+
+\newskip\thinshrinkable
+\skip\thinshrinkable=.15em minus .15em
+
+\newbox\entryindexbox
+\def\insertindexentrybox{%
+  \ourunvbox\entryindexbox
+}
+
+% Use \lastbox to take apart vbox box by box, and add each sub-box
+% to the current vertical list.
+\def\ourunvbox#1{%
+\bgroup % for local binding of \delayedbox
+  % Remove the last box from box #1
+  \global\setbox#1=\vbox{%
+    \unvbox#1%
+    \unskip % remove any glue
+    \unpenalty
+    \global\setbox\interbox=\lastbox
+  }%
+  \setbox\delayedbox=\box\interbox
+  \ifdim\ht#1=0pt\else
+    \ourunvbox#1 % Repeat on what's left of the box
+    \nobreak
+  \fi
+  \box\delayedbox
+\egroup
+}
+\newbox\delayedbox
+\newbox\interbox
+
+% Default is no penalty
+\let\entrywidowpenalty\egroup
+
+% Used from \printindex.  \firsttoken should be the first token
+% after the \entry.  If it's not another \entry, we are at the last
+% line of a group of index entries, so insert a penalty to discourage
+% widowed index entries.
+\long\def\indexwidowpenalty{%
+  \def\isentry{\entry}%
+  \ifx\firsttoken\isentry
+  \else
+    \penalty 9000
+  \fi
+  \egroup % now comes the box added with \aftergroup
 }
 
 % Like plain.tex's \dotfill, except uses up at least 1 em.
+% The filll stretch here overpowers both the fil and fill stretch to push
+% the page number to the right.
 \def\indexdotfill{\cleaders
-  \hbox{$\mathsurround=0pt \mkern1.5mu.\mkern1.5mu$}\hskip 1em plus 1fill}
+  \hbox{$\mathsurround=0pt \mkern1.5mu.\mkern1.5mu$}\hskip 1em plus 1filll}
+
 
 \def\primary #1{\line{#1\hfil}}
 
@@ -4992,7 +5792,11 @@ end
   \ifpdf
     \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
   \else
-    #2
+    \ifx\XeTeXrevision\thisisundefined
+      #2
+    \else
+      \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
+    \fi
   \fi
   \par
 }}
@@ -5000,12 +5804,37 @@ end
 % Define two-column mode, which we use to typeset indexes.
 % Adapted from the TeXbook, page 416, which is to say,
 % the manmac.tex format used to print the TeXbook itself.
-\catcode`\@=11
+\catcode`\@=11  % private names
 
 \newbox\partialpage
 \newdimen\doublecolumnhsize
 
+% Use inside an output routine to save \topmark and \firstmark
+\def\savemarks{%
+  \global\savedtopmark=\expandafter{\topmark }%
+  \global\savedfirstmark=\expandafter{\firstmark }%
+}
+\newtoks\savedtopmark
+\newtoks\savedfirstmark
+
+% Set \topmark and \firstmark for next time \output runs.
+% Can't be run from withinside \output (because any material
+% added while an output routine is active, including 
+% penalties, is saved for after it finishes).  The page so far
+% should be empty, otherwise what's on it will be thrown away.
+\def\restoremarks{%
+  \mark{\the\savedtopmark}%
+  \bgroup\output = {%
+    \setbox\dummybox=\box\PAGE
+  }abc\eject\egroup
+  % "abc" because output routine doesn't fire for a completely empty page.
+  \mark{\the\savedfirstmark}%
+}
+
 \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
+  % If not much space left on page, start a new page.
+  \ifdim\pagetotal>0.8\vsize\vfill\eject\fi
+  %
   % Grab any single-column material above us.
   \output = {%
     %
@@ -5025,8 +5854,15 @@ end
       \unvbox\PAGE
       \kern-\topskip \kern\baselineskip
     }%
+    \savemarks
   }%
   \eject % run that output routine to set \partialpage
+  \restoremarks
+  %
+  % We recover the two marks that the last output routine saved in order
+  % to propagate the information in marks added around a chapter heading,
+  % which could be otherwise be lost by the time the final page is output.
+  %
   %
   % Use the double-column output routine for subsequent pages.
   \output = {\doublecolumnout}%
@@ -5055,12 +5891,16 @@ end
   % Double the \vsize as well.  (We don't need a separate register here,
   % since nobody clobbers \vsize.)
   \vsize = 2\vsize
+  %
+  % For the benefit of balancing columns
+  \advance\baselineskip by 0pt plus 0.5pt
 }
 
 % The double-column output routine for all double-column pages except
-% the last.
+% the last, which is done by \balancecolumns.
 %
 \def\doublecolumnout{%
+  %
   \splittopskip=\topskip \splitmaxdepth=\maxdepth
   % Get the available space for the double columns -- the normal
   % (undoubled) page height minus any material left over from the
@@ -5083,10 +5923,11 @@ end
   %
   \hsize = \doublecolumnhsize
   \wd0=\hsize \wd2=\hsize
-  \hbox to\pagewidth{\box0\hfil\box2}%
+  \hbox to\txipagewidth{\box0\hfil\box2}%
 }
-%
-% All done with double columns.
+
+
+% Finished with with double columns.
 \def\enddoublecolumns{%
   % The following penalty ensures that the page builder is exercised
   % _before_ we change the output routine.  This is necessary in the
@@ -5109,7 +5950,7 @@ end
   % goal.  When TeX sees \eject from below which follows the final
   % section, it invokes the new output routine that we've set after
   % \balancecolumns below; \onepageout will try to fit the two columns
-  % and the final section into the vbox of \pageheight (see
+  % and the final section into the vbox of \txipageheight (see
   % \pagebody), causing an overfull box.
   %
   % Note that glue won't work here, because glue does not exercise the
@@ -5117,21 +5958,21 @@ end
   \penalty0
   %
   \output = {%
-    % Split the last of the double-column material.  Leave it on the
-    % current page, no automatic page break.
+    % Split the last of the double-column material.
+    \savemarks
     \balancecolumns
     %
-    % If we end up splitting too much material for the current page,
-    % though, there will be another page break right after this \output
-    % invocation ends.  Having called \balancecolumns once, we do not
+    % Having called \balancecolumns once, we do not
     % want to call it again.  Therefore, reset \output to its normal
-    % definition right away.  (We hope \balancecolumns will never be
-    % called on to balance too much material, but if it is, this makes
-    % the output somewhat more palatable.)
+    % definition right away.
     \global\output = {\onepageout{\pagecontents\PAGE}}%
   }%
   \eject
   \endgroup % started in \begindoublecolumns
+  \restoremarks
+  % Leave the double-column material on the current page, no automatic
+  % page break.
+  \box\balancedcolumns
   %
   % \pagegoal was set to the doubled \vsize above, since we restarted
   % the current page.  We're now back to normal single-column
@@ -5139,31 +5980,59 @@ end
   % \endgroup where \vsize got restored).
   \pagegoal = \vsize
 }
+\newbox\balancedcolumns
+\setbox\balancedcolumns=\vbox{shouldnt see this}%
 %
-% Called at the end of the double column material.
+% Only called for the last of the double column material.  \doublecolumnout 
+% does the others.
 \def\balancecolumns{%
   \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
   \dimen@ = \ht0
   \advance\dimen@ by \topskip
   \advance\dimen@ by-\baselineskip
-  \divide\dimen@ by 2 % target to split to
-  %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
-  \splittopskip = \topskip
-  % Loop until we get a decent breakpoint.
-  {%
-    \vbadness = 10000
-    \loop
-      \global\setbox3 = \copy0
-      \global\setbox1 = \vsplit3 to \dimen@
-    \ifdim\ht3>\dimen@
-      \global\advance\dimen@ by 1pt
-    \repeat
-  }%
-  %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
-  \setbox0=\vbox to\dimen@{\unvbox1}%
-  \setbox2=\vbox to\dimen@{\unvbox3}%
+  \ifdim\dimen@<5\baselineskip
+    % Don't split a short final column in two.
+    \setbox2=\vbox{}%
+  \else
+    \divide\dimen@ by 2 % target to split to
+    \dimen@ii = \dimen@
+    \splittopskip = \topskip
+    % Loop until left column is at least as high as the right column.
+    {%
+      \vbadness = 10000
+      \loop
+        \global\setbox3 = \copy0
+        \global\setbox1 = \vsplit3 to \dimen@
+      \ifdim\ht1<\ht3
+        \global\advance\dimen@ by 1pt
+      \repeat
+    }%
+    % Now the left column is in box 1, and the right column in box 3.
+    % Check whether the left column has come out higher than the page itself.  
+    % (Note that we have doubled \vsize for the double columns, so
+    % the actual height of the page is 0.5\vsize).
+    \ifdim2\ht1>\vsize
+      % Just split the last of the double column material roughly in half.
+      \setbox2=\box0
+      \setbox0 = \vsplit2 to \dimen@ii
+      \setbox0=\vbox to \dimen@ii {\unvbox0\vfill}%
+      \setbox2=\vbox to \dimen@ii {\unvbox2\vfill}%
+    \else
+      % Compare the heights of the two columns.
+      \ifdim4\ht1>5\ht3
+        % Column heights are too different, so don't make their bottoms
+        % flush with each other.
+        \setbox2=\vbox to \ht1 {\unvbox3\vfill}%
+        \setbox0=\vbox to \ht1 {\unvbox1\vfill}%
+      \else
+        % Make column bottoms flush with each other.
+        \setbox2=\vbox to\ht1{\unvbox3\unskip}%
+        \setbox0=\vbox to\ht1{\unvbox1\unskip}%
+      \fi
+    \fi
+  \fi
   %
-  \pagesofar
+  \global\setbox\balancedcolumns=\vbox{\pagesofar}%
 }
 \catcode`\@ = \other
 
@@ -5178,10 +6047,14 @@ end
   \null
   \vskip.3\vsize  % move it down on the page a bit
   \begingroup
-    \noindent \titlefonts\rmisbold #1\par % the text
+    \noindent \titlefonts\rm #1\par % the text
     \let\lastnode=\empty      % no node to associate with
     \writetocentry{part}{#1}{}% but put it in the toc
     \headingsoff              % no headline or footline on the part page
+    % This outputs a mark at the end of the page that clears \thischapter
+    % and \thissection, as is done in \startcontents.
+    \let\pchapsepmacro\relax
+    \chapmacro{}{Yomitfromtoc}{}%
     \chapoddpage
   \endgroup
 }
@@ -5426,9 +6299,6 @@ end
 
 % @centerchap is like @unnumbered, but the heading is centered.
 \outer\parseargdef\centerchap{%
-  % Well, we could do the following in a group, but that would break
-  % an assumption that \chapmacro is called at the outermost level.
-  % Thus we are safer this way:		--kasal, 24feb04
   \let\centerparametersmaybe = \centerparameters
   \unnmhead0{#1}%
   \let\centerparametersmaybe = \relax
@@ -5520,14 +6390,6 @@ end
 
 % Define @majorheading, @heading and @subheading
 
-% NOTE on use of \vbox for chapter headings, section headings, and such:
-%       1) We use \vbox rather than the earlier \line to permit
-%          overlong headings to fold.
-%       2) \hyphenpenalty is set to 10000 because hyphenation in a
-%          heading is obnoxious; this forbids it.
-%       3) Likewise, headings look best if no \parindent is used, and
-%          if justification is not attempted.  Hence \raggedright.
-
 \def\majorheading{%
   {\advance\chapheadingskip by 10pt \chapbreak }%
   \parsearg\chapheadingzzz
@@ -5535,10 +6397,8 @@ end
 
 \def\chapheading{\chapbreak \parsearg\chapheadingzzz}
 \def\chapheadingzzz#1{%
-  {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
-                    \parindent=0pt\ptexraggedright
-                    \rmisbold #1\hfill}}%
-  \bigskip \par\penalty 200\relax
+  \vbox{\chapfonts \raggedtitlesettings #1\par}%
+  \nobreak\bigskip \nobreak
   \suppressfirstparagraphindent
 }
 
@@ -5562,7 +6422,11 @@ end
 
 % Define plain chapter starts, and page on/off switching for it.
 \def\chapbreak{\dobreak \chapheadingskip {-4000}}
+
+% Start a new page
 \def\chappager{\par\vfill\supereject}
+
+% \chapoddpage - start on an odd page for a new chapter
 % Because \domark is called before \chapoddpage, the filler page will
 % get the headings for the next chapter, which is wrong.  But we don't
 % care -- we just disable all headings on the filler page.
@@ -5577,7 +6441,7 @@ end
   \fi
 }
 
-\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
+\parseargdef\setchapternewpage{\csname CHAPPAG#1\endcsname}
 
 \def\CHAPPAGoff{%
 \global\let\contentsalignmacro = \chappager
@@ -5598,17 +6462,26 @@ end
 
 \CHAPPAGon
 
-% Chapter opening.
+% \chapmacro - Chapter opening.
 %
 % #1 is the text, #2 is the section type (Ynumbered, Ynothing,
 % Yappendix, Yomitfromtoc), #3 the chapter number.
+% Not used for @heading series.
 %
 % To test against our argument.
 \def\Ynothingkeyword{Ynothing}
-\def\Yomitfromtockeyword{Yomitfromtoc}
 \def\Yappendixkeyword{Yappendix}
+\def\Yomitfromtockeyword{Yomitfromtoc}
 %
 \def\chapmacro#1#2#3{%
+  \expandafter\ifx\thisenv\titlepage\else
+    \checkenv{}% chapters, etc., should not start inside an environment.
+  \fi
+  % FIXME: \chapmacro is currently called from inside \titlepage when
+  % \setcontentsaftertitlepage to print the "Table of Contents" heading, but
+  % this should probably be done by \sectionheading with an option to print
+  % in chapter size.
+  %
   % Insert the first mark before the heading break (see notes for \domark).
   \let\prevchapterdefs=\lastchapterdefs
   \let\prevsectiondefs=\lastsectiondefs
@@ -5660,7 +6533,8 @@ end
   \domark
   %
   {%
-    \chapfonts \rmisbold
+    \chapfonts \rm
+    \let\footnote=\errfootnoteheading % give better error message
     %
     % Have to define \lastsection before calling \donoderef, because the
     % xref code eventually uses it.  On the other hand, it has to be called
@@ -5697,8 +6571,7 @@ end
     %
     % Typeset the actual heading.
     \nobreak % Avoid page breaks at the interline glue.
-    \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright
-          \hangindent=\wd0 \centerparametersmaybe
+    \vbox{\raggedtitlesettings \hangindent=\wd0 \centerparametersmaybe
           \unhbox0 #1\par}%
   }%
   \nobreak\bigskip % no page break after a chapter title
@@ -5714,30 +6587,6 @@ end
 }
 
 
-% I don't think this chapter style is supported any more, so I'm not
-% updating it with the new noderef stuff.  We'll see.  --karl, 11aug03.
-%
-\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
-%
-\def\unnchfopen #1{%
-\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
-                       \parindent=0pt\ptexraggedright
-                       \rmisbold #1\hfill}}\bigskip \par\nobreak
-}
-\def\chfopen #1#2{\chapoddpage {\chapfonts
-\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
-\par\penalty 5000 %
-}
-\def\centerchfopen #1{%
-\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
-                       \parindent=0pt
-                       \hfill {\rmisbold #1}\hfill}}\bigskip \par\nobreak
-}
-\def\CHAPFopen{%
-  \global\let\chapmacro=\chfopen
-  \global\let\centerchapmacro=\centerchfopen}
-
-
 % Section titles.  These macros combine the section number parts and
 % call the generic \sectionheading to do the printing.
 %
@@ -5755,22 +6604,29 @@ end
 
 % Print any size, any type, section title.
 %
-% #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is
-% the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the
-% section number.
+% #1 is the text of the title,
+% #2 is the section level (sec/subsec/subsubsec),
+% #3 is the section type (Ynumbered, Ynothing, Yappendix, Yomitfromtoc),
+% #4 is the section number.
 %
 \def\seckeyword{sec}
 %
 \def\sectionheading#1#2#3#4{%
   {%
-    \checkenv{}% should not be in an environment.
-    %
-    % Switch to the right set of fonts.
-    \csname #2fonts\endcsname \rmisbold
-    %
     \def\sectionlevel{#2}%
     \def\temptype{#3}%
     %
+    % It is ok for the @heading series commands to appear inside an
+    % environment (it's been historically allowed, though the logic is
+    % dubious), but not the others.
+    \ifx\temptype\Yomitfromtockeyword\else
+      \checkenv{}% non-@*heading should not be in an environment.
+    \fi
+    \let\footnote=\errfootnoteheading
+    %
+    % Switch to the right set of fonts.
+    \csname #2fonts\endcsname \rm
+    %
     % Insert first mark before the heading break (see notes for \domark).
     \let\prevsectiondefs=\lastsectiondefs
     \ifx\temptype\Ynothingkeyword
@@ -5822,7 +6678,7 @@ end
     %
     % Now the second mark, after the heading break.  No break points
     % between here and the heading.
-    \let\prevsectiondefs=\lastsectiondefs
+    \global\let\prevsectiondefs=\lastsectiondefs
     \domark
     %
     % Only insert the space after the number if we have a section number.
@@ -5876,14 +6732,15 @@ end
   %
   % We'll almost certainly start a paragraph next, so don't let that
   % glue accumulate.  (Not a breakpoint because it's preceded by a
-  % discardable item.)
+  % discardable item.)  However, when a paragraph is not started next
+  % (\startdefun, \cartouche, \center, etc.), this needs to be wiped out
+  % or the negative glue will cause weirdly wrong output, typically
+  % obscuring the section heading with something else.
   \vskip-\parskip
   %
-  % This is purely so the last item on the list is a known \penalty >
-  % 10000.  This is so \startdefun can avoid allowing breakpoints after
-  % section headings.  Otherwise, it would insert a valid breakpoint between:
-  %   @section sec-whatever
-  %   @deffn def-whatever
+  % This is so the last item on the main vertical list is a known
+  % \penalty > 10000, so \startdefun, etc., can recognize the situation
+  % and do the needful.
   \penalty 10001
 }
 
@@ -5932,7 +6789,14 @@ end
   % 1 and 2 (the page numbers aren't printed), and so are the first
   % two pages of the document.  Thus, we'd have two destinations named
   % `1', and two named `2'.
-  \ifpdf \global\pdfmakepagedesttrue \fi
+  \ifpdf
+    \global\pdfmakepagedesttrue
+  \else
+    \ifx\XeTeXrevision\thisisundefined
+    \else
+      \global\pdfmakepagedesttrue
+    \fi
+  \fi
 }
 
 
@@ -5981,7 +6845,7 @@ end
   \savepageno = \pageno
   \begingroup                  % Set up to handle contents files properly.
     \raggedbottom              % Worry more about breakpoints than the bottom.
-    \advance\hsize by -\contentsrightmargin % Don't use the full line length.
+    \entryrightmargin=\contentsrightmargin % Don't use the full line length.
     %
     % Roman numerals for page numbers.
     \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi
@@ -6086,7 +6950,7 @@ end
 
 % Chapters, in the main contents.
 \def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}}
-%
+
 % Chapters, in the short toc.
 % See comments in \dochapentry re vbox and related settings.
 \def\shortchapentry#1#2#3#4{%
@@ -6101,7 +6965,7 @@ end
   \setbox0 = \hbox{\putwordAppendix{} M}%
   \hbox to \wd0{\putwordAppendix{} #1\hss}}
 %
-\def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}}
+\def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\hskip.7em#1}{#4}}
 
 % Unnumbered chapters.
 \def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}}
@@ -6134,6 +6998,8 @@ end
 \def\dochapentry#1#2{%
    \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
    \begingroup
+     % Move the page numbers slightly to the right
+     \advance\entryrightmargin by -0.05em
      \chapentryfonts
      \tocentry{#1}{\dopageno\bgroup#2\egroup}%
    \endgroup
@@ -6188,14 +7054,14 @@ end
   \catcode `\|=\other
   \catcode `\<=\other
   \catcode `\>=\other
-  \catcode`\`=\other
-  \catcode`\'=\other
-  \escapechar=`\\
+  \catcode `\`=\other
+  \catcode `\'=\other
   %
   % ' is active in math mode (mathcode"8000).  So reset it, and all our
   % other math active characters (just in case), to plain's definitions.
   \mathactive
   %
+  % Inverse of the list at the beginning of the file.
   \let\b=\ptexb
   \let\bullet=\ptexbullet
   \let\c=\ptexc
@@ -6211,9 +7077,11 @@ end
   \let\+=\tabalign
   \let\}=\ptexrbrace
   \let\/=\ptexslash
+  \let\sp=\ptexsp
   \let\*=\ptexstar
+  %\let\sup=\ptexsup % do not redefine, we want @sup to work in math mode
   \let\t=\ptext
-  \expandafter \let\csname top\endcsname=\ptextop  % outer
+  \expandafter \let\csname top\endcsname=\ptextop  % we've made it outer
   \let\frenchspacing=\plainfrenchspacing
   %
   \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
@@ -6250,6 +7118,24 @@ end
     \endgraf
     \ifdim\lastskip<\envskipamount
       \removelastskip
+      \ifnum\lastpenalty<10000
+        % Penalize breaking before the environment, because preceding text
+        % often leads into it.
+        \penalty100
+      \fi
+      \vskip\envskipamount
+    \fi
+  \fi
+}}
+
+\def\afterenvbreak{{%
+  % =10000 instead of <10000 because of a special case in \itemzzz and
+  % \sectionheading, q.v.
+  \ifnum \lastpenalty=10000 \else
+    \advance\envskipamount by \parskip
+    \endgraf
+    \ifdim\lastskip<\envskipamount
+      \removelastskip
       % it's not a good place to break if the last penalty was \nobreak
       % or better ...
       \ifnum\lastpenalty<10000 \penalty-50 \fi
@@ -6258,8 +7144,6 @@ end
   \fi
 }}
 
-\let\afterenvbreak = \aboveenvbreak
-
 % \nonarrowing is a flag.  If "set", @lisp etc don't narrow margins; it will
 % also clear it, so that its embedded environments do the narrowing again.
 \let\nonarrowing=\relax
@@ -6297,15 +7181,13 @@ end
 				% side, and for 6pt waste from
 				% each corner char, and rule thickness
   \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
-  % Flag to tell @lisp, etc., not to narrow margin.
-  \let\nonarrowing = t%
   %
   % If this cartouche directly follows a sectioning command, we need the
   % \parskip glue (backspaced over by default) or the cartouche can
   % collide with the section heading.
-  \ifnum\lastpenalty>10000 \vskip\parskip \fi
+  \ifnum\lastpenalty>10000 \vskip\parskip \penalty\lastpenalty \fi
   %
-  \vbox\bgroup
+  \setbox\groupbox=\vbox\bgroup
       \baselineskip=0pt\parskip=0pt\lineskip=0pt
       \carttop
       \hbox\bgroup
@@ -6329,6 +7211,7 @@ end
       \egroup
       \cartbot
   \egroup
+  \addgroupbox
   \checkinserts
 }
 
@@ -6338,7 +7221,7 @@ end
 \newdimen\nonfillparindent
 \def\nonfillstart{%
   \aboveenvbreak
-  \hfuzz = 12pt % Don't be fussy
+  \ifdim\hfuzz < 12pt \hfuzz = 12pt \fi % Don't be fussy
   \sepspaces % Make spaces be word-separators rather than space tokens.
   \let\par = \lisppar % don't ignore blank lines
   \obeylines % each line of input is a line of output
@@ -6465,9 +7348,13 @@ end
 
 
 % @raggedright does more-or-less normal line breaking but no right
-% justification.  From plain.tex.
+% justification.  From plain.tex.  Don't stretch around special
+% characters in urls in this environment, since the stretch at the right
+% should be enough.
 \envdef\raggedright{%
-  \rightskip0pt plus2em \spaceskip.3333em \xspaceskip.5em\relax
+  \rightskip0pt plus2.4em \spaceskip.3333em \xspaceskip.5em\relax
+  \def\urefprestretchamount{0pt}%
+  \def\urefpoststretchamount{0pt}%
 }
 \let\Eraggedright\par
 
@@ -6496,16 +7383,9 @@ end
 \makedispenvdef{quotation}{\quotationstart}
 %
 \def\quotationstart{%
-  {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
-  \parindent=0pt
-  %
-  % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
+  \indentedblockstart % same as \indentedblock, but increase right margin too.
   \ifx\nonarrowing\relax
-    \advance\leftskip by \lispnarrowing
     \advance\rightskip by \lispnarrowing
-    \exdentamount = \lispnarrowing
-  \else
-    \let\nonarrowing = \relax
   \fi
   \parsearg\quotationlabel
 }
@@ -6531,6 +7411,32 @@ end
   \fi
 }
 
+% @indentedblock is like @quotation, but indents only on the left and
+% has no optional argument.
+% 
+\makedispenvdef{indentedblock}{\indentedblockstart}
+%
+\def\indentedblockstart{%
+  {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
+  \parindent=0pt
+  %
+  % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
+  \ifx\nonarrowing\relax
+    \advance\leftskip by \lispnarrowing
+    \exdentamount = \lispnarrowing
+  \else
+    \let\nonarrowing = \relax
+  \fi
+}
+
+% Keep a nonzero parskip for the environment, since we're doing normal filling.
+%
+\def\Eindentedblock{%
+  \par
+  {\parskip=0pt \afterenvbreak}%
+}
+\def\Esmallindentedblock{\Eindentedblock}
+
 
 % LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>}
 % If we want to allow any <char> as delimiter,
@@ -6688,7 +7594,7 @@ end
 % typesetting commands (@smallbook, font changes, etc.) have to be done
 % beforehand -- and a) we want @copying to be done first in the source
 % file; b) letting users define the frontmatter in as flexible order as
-% possible is very desirable.
+% possible is desirable.
 %
 \def\copying{\checkenv{}\begingroup\scanargctxt\docopying}
 \def\docopying#1@end copying{\endgroup\def\copyingtext{#1}}
@@ -6783,7 +7689,7 @@ end
   \temp
 }
 
-% \domakedefun \deffn \deffnx \deffnheader
+% \domakedefun \deffn \deffnx \deffnheader { (defn. of \deffnheader) }
 %
 % Define \deffn and \deffnx, without parameters.
 % \deffnheader has to be defined explicitly.
@@ -6992,7 +7898,7 @@ end
     \fi           % no return type
     #3% output function name
   }%
-  {\rm\enskip}% hskip 0.5 em of \tenrm
+  {\rm\enskip}% hskip 0.5 em of \rmfont
   %
   \boldbrax
   % arguments will be output next, if any.
@@ -7009,7 +7915,10 @@ end
   \df \sl \hyphenchar\font=0
   %
   % On the other hand, if an argument has two dashes (for instance), we
-  % want a way to get ttsl.  Let's try @var for that.
+  % want a way to get ttsl.  We used to recommend @var for that, so
+  % leave the code in, but it's strange for @var to lead to typewriter.
+  % Nowadays we recommend @code, since the difference between a ttsl hyphen
+  % and a tt hyphen is pretty tiny.  @code also disables ?` !`.
   \def\var##1{{\setupmarkupstyle{var}\ttslanted{##1}}}%
   #1%
   \sl\hyphenchar\font=45
@@ -7118,34 +8027,41 @@ end
   }
 \fi
 
-\def\scanmacro#1{\begingroup
+% alias because \c means cedilla in @tex or @math
+\let\texinfoc=\c
+
+\newcount\savedcatcodeone
+\newcount\savedcatcodetwo
+
+% Used at the time of macro expansion.
+% Argument is macro body with arguments substituted
+\def\scanmacro#1{%
   \newlinechar`\^^M
-  \let\xeatspaces\eatspaces
+  \def\xeatspaces{\eatspaces}%
   %
-  % Undo catcode changes of \startcontents and \doprintindex
-  % When called from @insertcopying or (short)caption, we need active
-  % backslash to get it printed correctly.  Previously, we had
-  % \catcode`\\=\other instead.  We'll see whether a problem appears
-  % with macro expansion.				--kasal, 19aug04
-  \catcode`\@=0 \catcode`\\=\active \escapechar=`\@
+  % Temporarily undo catcode changes of \printindex.  Set catcode of @ to
+  % 0 so that @-commands in macro expansions aren't printed literally when 
+  % formatting an index file, where \ is used as the escape character.
+  \savedcatcodeone=\catcode`\@
+  \savedcatcodetwo=\catcode`\\
+  \catcode`\@=0
+  \catcode`\\=\active
   %
-  % ... and for \example:
-  \spaceisspace
+  % Process the macro body under the current catcode regime.
+  \scantokens{#1@texinfoc}%
   %
-  % The \empty here causes a following catcode 5 newline to be eaten as
-  % part of reading whitespace after a control sequence.  It does not
-  % eat a catcode 13 newline.  There's no good way to handle the two
-  % cases (untried: maybe e-TeX's \everyeof could help, though plain TeX
-  % would then have different behavior).  See the Macro Details node in
-  % the manual for the workaround we recommend for macros and
-  % line-oriented commands.
-  % 
-  \scantokens{#1\empty}%
-\endgroup}
+  \catcode`\@=\savedcatcodeone
+  \catcode`\\=\savedcatcodetwo
+  %
+  % The \texinfoc is to remove the \newlinechar added by \scantokens, and
+  % can be noticed by \parsearg.
+  %   We avoid surrounding the call to \scantokens with \bgroup and \egroup
+  % to allow macros to open or close groups themselves.
+}
 
+% Used for copying and captions
 \def\scanexp#1{%
-  \edef\temp{\noexpand\scanmacro{#1}}%
-  \temp
+  \expandafter\scanmacro\expandafter{#1}%
 }
 
 \newcount\paramno   % Count of parameters
@@ -7153,7 +8069,7 @@ end
 \newif\ifrecursive  % Is it recursive?
 
 % List of all defined macros in the form
-%    \definedummyword\macro1\definedummyword\macro2...
+%    \commondummyword\macro1\commondummyword\macro2...
 % Currently is also contains all @aliases; the list can be split
 % if there is a need.
 \def\macrolist{}
@@ -7161,7 +8077,7 @@ end
 % Add the macro to \macrolist
 \def\addtomacrolist#1{\expandafter \addtomacrolistxxx \csname#1\endcsname}
 \def\addtomacrolistxxx#1{%
-     \toks0 = \expandafter{\macrolist\definedummyword#1}%
+     \toks0 = \expandafter{\macrolist\commondummyword#1}%
      \xdef\macrolist{\the\toks0}%
 }
 
@@ -7211,48 +8127,45 @@ end
   \catcode`\+=\other
   \catcode`\<=\other
   \catcode`\>=\other
-  \catcode`\@=\other
   \catcode`\^=\other
   \catcode`\_=\other
   \catcode`\|=\other
   \catcode`\~=\other
-  \ifx\declaredencoding\ascii \else \setnonasciicharscatcodenonglobal\other \fi
+  \passthroughcharstrue
 }
 
 \def\scanargctxt{% used for copying and captions, not macros.
   \scanctxt
+  \catcode`\@=\other
   \catcode`\\=\other
   \catcode`\^^M=\other
 }
 
 \def\macrobodyctxt{% used for @macro definitions
   \scanctxt
+  \catcode`\ =\other
+  \catcode`\@=\other
   \catcode`\{=\other
   \catcode`\}=\other
   \catcode`\^^M=\other
   \usembodybackslash
 }
 
-\def\macroargctxt{% used when scanning invocations
+% Used when scanning braced macro arguments.  Note, however, that catcode
+% changes here are ineffectual if the macro invocation was nested inside
+% an argument to another Texinfo command.
+\def\macroargctxt{%
   \scanctxt
-  \catcode`\\=0
+  \catcode`\ =\active
+  \catcode`\^^M=\other
+  \catcode`\\=\active
 }
-% why catcode 0 for \ in the above?  To recognize \\ \{ \} as "escapes"
-% for the single characters \ { }.  Thus, we end up with the "commands"
-% that would be written @\ @{ @} in a Texinfo document.
-% 
-% We already have @{ and @}.  For @\, we define it here, and only for
-% this purpose, to produce a typewriter backslash (so, the @\ that we
-% define for @math can't be used with @macro calls):
-%
-\def\\{\normalbackslash}%
-% 
-% We would like to do this for \, too, since that is what makeinfo does.
-% But it is not possible, because Texinfo already has a command @, for a
-% cedilla accent.  Documents must use @comma{} instead.
-%
-% \anythingelse will almost certainly be an error of some kind.
 
+\def\macrolineargctxt{% used for whole-line arguments without braces
+  \scanctxt
+  \catcode`\{=\other
+  \catcode`\}=\other
+}
 
 % \mbodybackslash is the definition of \ in @macro bodies.
 % It maps \foo\ => \csname macarg.foo\endcsname => #N
@@ -7305,7 +8218,7 @@ end
     % Remove the macro name from \macrolist:
     \begingroup
       \expandafter\let\csname#1\endcsname \relax
-      \let\definedummyword\unmacrodo
+      \let\commondummyword\unmacrodo
       \xdef\macrolist{\macrolist}%
     \endgroup
   \else
@@ -7320,61 +8233,40 @@ end
   \ifx #1\relax
     % remove this
   \else
-    \noexpand\definedummyword \noexpand#1%
+    \noexpand\commondummyword \noexpand#1%
   \fi
 }
 
-% This makes use of the obscure feature that if the last token of a
-% <parameter list> is #, then the preceding argument is delimited by
-% an opening brace, and that opening brace is not consumed.
+% \getargs -- Parse the arguments to a @macro line.  Set \macname to
+% the name of the macro, and \argl to the braced argument list.
 \def\getargs#1{\getargsxxx#1{}}
 \def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
 \def\getmacname#1 #2\relax{\macname={#1}}
 \def\getmacargs#1{\def\argl{#1}}
+% This made use of the feature that if the last token of a
+% <parameter list> is #, then the preceding argument is delimited by
+% an opening brace, and that opening brace is not consumed.
 
-% For macro processing make @ a letter so that we can make Texinfo private macro names.
-\edef\texiatcatcode{\the\catcode`\@}
-\catcode `@=11\relax
-
-% Parse the optional {params} list.  Set up \paramno and \paramlist
-% so \defmacro knows what to do.  Define \macarg.BLAH for each BLAH
-% in the params list to some hook where the argument si to be expanded.  If
-% there are less than 10 arguments that hook is to be replaced by ##N where N
+% Parse the optional {params} list to @macro or @rmacro.
+% Set \paramno to the number of arguments,
+% and \paramlist to a parameter text for the macro (e.g. #1,#2,#3 for a
+% three-param macro.)  Define \macarg.BLAH for each BLAH in the params
+% list to some hook where the argument is to be expanded.  If there are
+% less than 10 arguments that hook is to be replaced by ##N where N
 % is the position in that list, that is to say the macro arguments are to be
 % defined `a la TeX in the macro body.  
 %
 % That gets used by \mbodybackslash (above).
 %
-% We need to get `macro parameter char #' into several definitions.
-% The technique used is stolen from LaTeX: let \hash be something
-% unexpandable, insert that wherever you need a #, and then redefine
-% it to # just before using the token list produced.
-%
-% The same technique is used to protect \eatspaces till just before
-% the macro is used.
-%
-% If there are 10 or more arguments, a different technique is used, where the
-% hook remains in the body, and when macro is to be expanded the body is
-% processed again to replace the arguments.
-%
-% In that case, the hook is \the\toks N-1, and we simply set \toks N-1 to the
-% argument N value and then \edef  the body (nothing else will expand because of
-% the catcode regime underwhich the body was input).
+% If there are 10 or more arguments, a different technique is used: see
+% \parsemmanyargdef.
 %
-% If you compile with TeX (not eTeX), and you have macros with 10 or more
-% arguments, you need that no macro has more than 256 arguments, otherwise an
-% error is produced.
 \def\parsemargdef#1;{%
   \paramno=0\def\paramlist{}%
   \let\hash\relax
+  % \hash is redefined to `#' later to get it into definitions
   \let\xeatspaces\relax
   \parsemargdefxxx#1,;,%
-  % In case that there are 10 or more arguments we parse again the arguments
-  % list to set new definitions for the \macarg.BLAH macros corresponding to
-  % each BLAH argument. It was anyhow needed to parse already once this list
-  % in order to count the arguments, and as macros with at most 9 arguments
-  % are by far more frequent than macro with 10 or more arguments, defining
-  % twice the \macarg.BLAH macros does not cost too much processing power.
   \ifnum\paramno<10\relax\else
     \paramno0\relax
     \parsemmanyargdef@@#1,;,% 10 or more arguments
@@ -7389,6 +8281,43 @@ end
     \edef\paramlist{\paramlist\hash\the\paramno,}%
   \fi\next}
 
+% \parsemacbody, \parsermacbody
+%
+% Read recursive and nonrecursive macro bodies. (They're different since
+% rec and nonrec macros end differently.)
+% 
+% We are in \macrobodyctxt, and the \xdef causes backslashshes in the macro 
+% body to be transformed.
+% Set \macrobody to the body of the macro, and call \defmacro.
+%
+{\catcode`\ =\other\long\gdef\parsemacbody#1@end macro{%
+\xdef\macrobody{\eatcr{#1}}\endgroup\defmacro}}%
+{\catcode`\ =\other\long\gdef\parsermacbody#1@end rmacro{%
+\xdef\macrobody{\eatcr{#1}}\endgroup\defmacro}}%
+
+% Make @ a letter, so that we can make private-to-Texinfo macro names.
+\edef\texiatcatcode{\the\catcode`\@}
+\catcode `@=11\relax
+
+%%%%%%%%%%%%%% Code for > 10 arguments only   %%%%%%%%%%%%%%%%%%
+
+% If there are 10 or more arguments, a different technique is used, where the
+% hook remains in the body, and when macro is to be expanded the body is
+% processed again to replace the arguments.
+%
+% In that case, the hook is \the\toks N-1, and we simply set \toks N-1 to the
+% argument N value and then \edef the body (nothing else will expand because of
+% the catcode regime under which the body was input).
+%
+% If you compile with TeX (not eTeX), and you have macros with 10 or more
+% arguments, no macro can have more than 256 arguments (else error).
+%
+% In case that there are 10 or more arguments we parse again the arguments
+% list to set new definitions for the \macarg.BLAH macros corresponding to
+% each BLAH argument. It was anyhow needed to parse already once this list
+% in order to count the arguments, and as macros with at most 9 arguments
+% are by far more frequent than macro with 10 or more arguments, defining
+% twice the \macarg.BLAH macros does not cost too much processing power.
 \def\parsemmanyargdef@@#1,{%
   \if#1;\let\next=\relax
   \else 
@@ -7404,16 +8333,6 @@ end
     \advance\paramno by 1\relax
   \fi\next}
 
-% These two commands read recursive and nonrecursive macro bodies.
-% (They're different since rec and nonrec macros end differently.)
-%
-
-\catcode `\@\texiatcatcode
-\long\def\parsemacbody#1@end macro%
-{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
-\long\def\parsermacbody#1@end rmacro%
-{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
-\catcode `\@=11\relax
 
 \let\endargs@\relax
 \let\nil@\relax
@@ -7421,7 +8340,7 @@ end
 \long\def\nillm@{\nil@}%
 
 % This macro is expanded during the Texinfo macro expansion, not during its
-% definition.  It gets all the arguments values and assigns them to macros
+% definition.  It gets all the arguments' values and assigns them to macros
 % macarg.ARGNAME
 %
 % #1 is the macro name
@@ -7442,8 +8361,6 @@ end
     \getargvals@@
   \fi
 }
-
-% 
 \def\getargvals@@{%
   \ifx\paramlist\nilm@
       % Some sanity check needed here that \argvaluelist is also empty.
@@ -7487,7 +8404,8 @@ end
 }
 
 % Replace arguments by their values in the macro body, and place the result
-% in macro \@tempa
+% in macro \@tempa.
+% 
 \def\macvalstoargs@{%
   %  To do this we use the property that token registers that are \the'ed
   % within an \edef  expand only once. So we are going to place all argument
@@ -7511,8 +8429,9 @@ end
   \expandafter\def\expandafter\@tempa\expandafter{\@tempc}%
   }
 
+% Define the named-macro outside of this group and then close this group. 
+% 
 \def\macargexpandinbody@{% 
-  %% Define the named-macro outside of this group and then close this group. 
   \expandafter
   \endgroup
   \macargdeflist@
@@ -7549,14 +8468,8 @@ end
   \next
 }
 
-% Save the token stack pointer into macro #1
-\def\texisavetoksstackpoint#1{\edef#1{\the\@cclvi}}
-% Restore the token stack pointer from number in macro #1
-\def\texirestoretoksstackpoint#1{\expandafter\mathchardef\expandafter\@cclvi#1\relax}
-% newtoks that can be used non \outer .
-\def\texinonouternewtoks{\alloc@ 5\toks \toksdef \@cclvi}
-
-% Tailing missing arguments are set to empty
+% Trailing missing arguments are set to empty.
+% 
 \def\setemptyargvalues@{%
   \ifx\paramlist\nilm@
     \let\next\macargexpandinbody@
@@ -7586,99 +8499,191 @@ end
    \long\def#2{#4}%
 }
 
-% This defines a Texinfo @macro. There are eight cases: recursive and
-% nonrecursive macros of zero, one, up to nine, and many arguments.
-% Much magic with \expandafter here.
+
+%%%%%%%%%%%%%% End of code for > 10 arguments %%%%%%%%%%%%%%%%%%
+
+
+% This defines a Texinfo @macro or @rmacro, called by \parsemacbody.
+%    \macrobody has the body of the macro in it, with placeholders for
+% its parameters, looking like "\xeatspaces{\hash 1}".
+%    \paramno is the number of parameters
+%    \paramlist is a TeX parameter text, e.g. "#1,#2,#3,"
+% There are four cases: macros of zero, one, up to nine, and many arguments.
 % \xdef is used so that macro definitions will survive the file
-% they're defined in; @include reads the file inside a group.
+% they're defined in: @include reads the file inside a group.
 %
 \def\defmacro{%
   \let\hash=##% convert placeholders to macro parameter chars
-  \ifrecursive
-    \ifcase\paramno
-    % 0
-      \expandafter\xdef\csname\the\macname\endcsname{%
-        \noexpand\scanmacro{\temp}}%
-    \or % 1
-      \expandafter\xdef\csname\the\macname\endcsname{%
-         \bgroup\noexpand\macroargctxt
-         \noexpand\braceorline
-         \expandafter\noexpand\csname\the\macname xxx\endcsname}%
-      \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
-         \egroup\noexpand\scanmacro{\temp}}%
-    \else
-      \ifnum\paramno<10\relax % at most 9
-        \expandafter\xdef\csname\the\macname\endcsname{%
-           \bgroup\noexpand\macroargctxt
-           \noexpand\csname\the\macname xx\endcsname}%
-        \expandafter\xdef\csname\the\macname xx\endcsname##1{%
-            \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
-        \expandafter\expandafter
-        \expandafter\xdef
-        \expandafter\expandafter
-          \csname\the\macname xxx\endcsname
-            \paramlist{\egroup\noexpand\scanmacro{\temp}}%
-      \else % 10 or more
-        \expandafter\xdef\csname\the\macname\endcsname{%
-          \noexpand\getargvals@{\the\macname}{\argl}%
-        }%    
-        \global\expandafter\let\csname mac.\the\macname .body\endcsname\temp
-        \global\expandafter\let\csname mac.\the\macname .recurse\endcsname\gobble
-      \fi
-    \fi
-  \else
-    \ifcase\paramno
-    % 0
+  \ifnum\paramno=1
+    \def\xeatspaces##1{##1}%
+    % This removes the pair of braces around the argument.  We don't
+    % use \eatspaces, because this can cause ends of lines to be lost
+    % when the argument to \eatspaces is read, leading to line-based
+    % commands like "@itemize" not being read correctly.
+  \else
+    \let\xeatspaces\relax % suppress expansion
+  \fi
+  \ifcase\paramno
+  % 0
+    \expandafter\xdef\csname\the\macname\endcsname{%
+      \bgroup
+        \noexpand\spaceisspace
+        \noexpand\endlineisspace
+        \noexpand\expandafter % skip any whitespace after the macro name.
+        \expandafter\noexpand\csname\the\macname @@@\endcsname}%
+    \expandafter\xdef\csname\the\macname @@@\endcsname{%
+      \egroup
+      \noexpand\scanmacro{\macrobody}}%
+  \or % 1
+    \expandafter\xdef\csname\the\macname\endcsname{%
+       \bgroup
+       \noexpand\braceorline
+       \expandafter\noexpand\csname\the\macname @@@\endcsname}%
+    \expandafter\xdef\csname\the\macname @@@\endcsname##1{%
+      \egroup
+      \noexpand\scanmacro{\macrobody}%
+      }%
+  \else % at most 9
+    \ifnum\paramno<10\relax
+      % @MACNAME sets the context for reading the macro argument
+      % @MACNAME@@ gets the argument, processes backslashes and appends a 
+      % comma.
+      % @MACNAME@@@ removes braces surrounding the argument list.
+      % @MACNAME@@@@ scans the macro body with arguments substituted.
       \expandafter\xdef\csname\the\macname\endcsname{%
-        \noexpand\norecurse{\the\macname}%
-        \noexpand\scanmacro{\temp}\egroup}%
-    \or % 1
+        \bgroup
+        \noexpand\expandafter  % This \expandafter skip any spaces after the
+        \noexpand\macroargctxt % macro before we change the catcode of space.
+        \noexpand\expandafter
+        \expandafter\noexpand\csname\the\macname @@\endcsname}%
+      \expandafter\xdef\csname\the\macname @@\endcsname##1{%
+          \noexpand\passargtomacro
+          \expandafter\noexpand\csname\the\macname @@@\endcsname{##1,}}%
+      \expandafter\xdef\csname\the\macname @@@\endcsname##1{%
+          \expandafter\noexpand\csname\the\macname @@@@\endcsname ##1}%
+      \expandafter\expandafter
+      \expandafter\xdef
+      \expandafter\expandafter
+        \csname\the\macname @@@@\endcsname\paramlist{%
+          \egroup\noexpand\scanmacro{\macrobody}}%
+    \else % 10 or more:
       \expandafter\xdef\csname\the\macname\endcsname{%
-         \bgroup\noexpand\macroargctxt
-         \noexpand\braceorline
-         \expandafter\noexpand\csname\the\macname xxx\endcsname}%
-      \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
-        \egroup
-        \noexpand\norecurse{\the\macname}%
-        \noexpand\scanmacro{\temp}\egroup}%
-    \else % at most 9
-      \ifnum\paramno<10\relax
-        \expandafter\xdef\csname\the\macname\endcsname{%
-           \bgroup\noexpand\macroargctxt
-           \expandafter\noexpand\csname\the\macname xx\endcsname}%
-        \expandafter\xdef\csname\the\macname xx\endcsname##1{%
-            \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
-        \expandafter\expandafter
-        \expandafter\xdef
-        \expandafter\expandafter
-        \csname\the\macname xxx\endcsname
-        \paramlist{%
-            \egroup
-            \noexpand\norecurse{\the\macname}%
-            \noexpand\scanmacro{\temp}\egroup}%
-      \else % 10 or more:
-        \expandafter\xdef\csname\the\macname\endcsname{%
-          \noexpand\getargvals@{\the\macname}{\argl}%
-        }%
-        \global\expandafter\let\csname mac.\the\macname .body\endcsname\temp
-        \global\expandafter\let\csname mac.\the\macname .recurse\endcsname\norecurse
-      \fi
+        \noexpand\getargvals@{\the\macname}{\argl}%
+      }%
+      \global\expandafter\let\csname mac.\the\macname .body\endcsname\macrobody
+      \global\expandafter\let\csname mac.\the\macname .recurse\endcsname\gobble
     \fi
   \fi}
 
-\catcode `\@\texiatcatcode\relax
+\catcode `\@\texiatcatcode\relax % end private-to-Texinfo catcodes
 
 \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
 
-% \braceorline decides whether the next nonwhitespace character is a
-% {.  If so it reads up to the closing }, if not, it reads the whole
-% line.  Whatever was read is then fed to the next control sequence
-% as an argument (by \parsebrace or \parsearg).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+{\catcode`\@=0 \catcode`\\=13  % We need to manipulate \ so use @ as escape
+@catcode`@_=11  % private names
+@catcode`@!=11  % used as argument separator
+
+% \passargtomacro#1#2 -
+% Call #1 with a list of tokens #2, with any doubled backslashes in #2
+% compressed to one.
+%
+% This implementation works by expansion, and not execution (so we cannot use 
+% \def or similar).  This reduces the risk of this failing in contexts where 
+% complete expansion is done with no execution (for example, in writing out to 
+% an auxiliary file for an index entry).
+% 
+% State is kept in the input stream: the argument passed to
+% @look_ahead, @gobble_and_check_finish and @add_segment is
+%
+% THE_MACRO ARG_RESULT ! {PENDING_BS} NEXT_TOKEN  (... rest of input)
+%
+% where:
+% THE_MACRO - name of the macro we want to call
+% ARG_RESULT - argument list we build to pass to that macro
+% PENDING_BS - either a backslash or nothing
+% NEXT_TOKEN - used to look ahead in the input stream to see what's coming next
+
+@gdef@passargtomacro#1#2{%
+  @add_segment #1!{}@relax#2\@_finish\%
+}
+@gdef@_finish{@_finishx} @global@let@_finishx@relax
+
+% #1 - THE_MACRO ARG_RESULT
+% #2 - PENDING_BS
+% #3 - NEXT_TOKEN
+% #4 used to look ahead
+%
+% If the next token is not a backslash, process the rest of the argument; 
+% otherwise, remove the next token.
+@gdef@look_ahead#1!#2#3#4{%
+  @ifx#4\%
+   @expandafter@gobble_and_check_finish 
+  @else
+   @expandafter@add_segment
+  @fi#1!{#2}#4#4%
+}
+
+% #1 - THE_MACRO ARG_RESULT
+% #2 - PENDING_BS
+% #3 - NEXT_TOKEN
+% #4 should be a backslash, which is gobbled.
+% #5 looks ahead
+%
+% Double backslash found.  Add a single backslash, and look ahead.
+@gdef@gobble_and_check_finish#1!#2#3#4#5{%
+  @add_segment#1\!{}#5#5%
+}
+
+@gdef@is_fi{@fi}
+
+% #1 - THE_MACRO ARG_RESULT
+% #2 - PENDING_BS
+% #3 - NEXT_TOKEN
+% #4 is input stream until next backslash
+%
+% Input stream is either at the start of the argument, or just after a 
+% backslash sequence, either a lone backslash, or a doubled backslash.  
+% NEXT_TOKEN contains the first token in the input stream: if it is \finish, 
+% finish; otherwise, append to ARG_RESULT the segment of the argument up until
+% the next backslash.  PENDING_BACKSLASH contains a backslash to represent
+% a backslash just before the start of the input stream that has not been
+% added to ARG_RESULT.
+@gdef@add_segment#1!#2#3#4\{%
+@ifx#3@_finish
+  @call_the_macro#1!%
+@else
+  % append the pending backslash to the result, followed by the next segment
+  @expandafter@is_fi@look_ahead#1#2#4!{\}@fi
+  % this @fi is discarded by @look_ahead.
+  % we can't get rid of it with \expandafter because we don't know how 
+  % long #4 is.
+}
+
+% #1 - THE_MACRO
+% #2 - ARG_RESULT
+% #3 discards the res of the conditional in @add_segment, and @is_fi ends the 
+% conditional.
+@gdef@call_the_macro#1#2!#3@fi{@is_fi #1{#2}}
+
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% \braceorline MAC is used for a one-argument macro MAC.  It checks
+% whether the next non-whitespace character is a {.  It sets the context
+% for reading the argument (slightly different in the two cases).  Then,
+% to read the argument, in the whole-line case, it then calls the regular
+% \parsearg MAC; in the lbrace case, it calls \passargtomacro MAC.
 % 
 \def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx}
 \def\braceorlinexxx{%
-  \ifx\nchar\bgroup\else
-    \expandafter\parsearg
+  \ifx\nchar\bgroup
+    \macroargctxt
+    \expandafter\passargtomacro
+  \else
+    \macrolineargctxt\expandafter\parsearg
   \fi \macnamexxx}
 
 
@@ -7760,7 +8765,10 @@ end
   \pdfmkdest{#1}%
   \iflinks
     {%
+      \requireauxfile
       \atdummies  % preserve commands, but don't expand them
+      % match definition in \xrdef, \refx, \xrefX.
+      \def\value##1{##1}%
       \edef\writexrdef##1##2{%
 	\write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef
 	  ##1}{##2}}% these are parameters of \writexrdef
@@ -7793,26 +8801,34 @@ end
   \fi\fi
 }
 
-
+% 
 % @xref, @pxref, and @ref generate cross-references.  For \xrefX, #1 is
 % the node name, #2 the name of the Info cross-reference, #3 the printed
 % node name, #4 the name of the Info file, #5 the name of the printed
 % manual.  All but the node name can be omitted.
 %
-\def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
-\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
-\def\ref#1{\xrefX[#1,,,,,,,]}
+\def\pxref{\putwordsee{} \xrefXX}
+\def\xref{\putwordSee{} \xrefXX}
+\def\ref{\xrefXX}
+
+\def\xrefXX#1{\def\xrefXXarg{#1}\futurelet\tokenafterxref\xrefXXX}
+\def\xrefXXX{\expandafter\xrefX\expandafter[\xrefXXarg,,,,,,,]}
 %
-\newbox\topbox
+\newbox\toprefbox
 \newbox\printedrefnamebox
+\newbox\infofilenamebox
 \newbox\printedmanualbox
 %
 \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
   \unsepspaces
   %
+  % Get args without leading/trailing spaces.
   \def\printedrefname{\ignorespaces #3}%
   \setbox\printedrefnamebox = \hbox{\printedrefname\unskip}%
   %
+  \def\infofilename{\ignorespaces #4}%
+  \setbox\infofilenamebox = \hbox{\infofilename\unskip}%
+  %
   \def\printedmanual{\ignorespaces #5}%
   \setbox\printedmanualbox  = \hbox{\printedmanual\unskip}%
   %
@@ -7843,37 +8859,85 @@ end
   %
   % Make link in pdf output.
   \ifpdf
+    % For pdfTeX and LuaTeX
     {\indexnofonts
+     \makevalueexpandable
      \turnoffactive
      % This expands tokens, so do it after making catcode changes, so _
-     % etc. don't get their TeX definitions.
+     % etc. don't get their TeX definitions.  This ignores all spaces in
+     % #4, including (wrongly) those in the middle of the filename.
      \getfilename{#4}%
      %
-     \edef\pdfxrefdest{#1}%
-     \txiescapepdf\pdfxrefdest
+     % This (wrongly) does not take account of leading or trailing
+     % spaces in #1, which should be ignored.
+     \setpdfdestname{#1}%
+     %
+     \ifx\pdfdestname\empty
+       \def\pdfdestname{Top}% no empty targets
+     \fi
      %
      \leavevmode
      \startlink attr{/Border [0 0 0]}%
      \ifnum\filenamelength>0
-       goto file{\the\filename.pdf} name{\pdfxrefdest}%
+       goto file{\the\filename.pdf} name{\pdfdestname}%
      \else
-       goto name{\pdfmkpgn{\pdfxrefdest}}%
+       goto name{\pdfmkpgn{\pdfdestname}}%
      \fi
     }%
     \setcolor{\linkcolor}%
+  \else
+    \ifx\XeTeXrevision\thisisundefined
+    \else
+      % For XeTeX
+      {\indexnofonts
+       \makevalueexpandable
+       \turnoffactive
+       % This expands tokens, so do it after making catcode changes, so _
+       % etc. don't get their TeX definitions.  This ignores all spaces in
+       % #4, including (wrongly) those in the middle of the filename.
+       \getfilename{#4}%
+       %
+       % This (wrongly) does not take account of leading or trailing
+       % spaces in #1, which should be ignored.
+       \setpdfdestname{#1}%
+       %
+       \ifx\pdfdestname\empty
+         \def\pdfdestname{Top}% no empty targets
+       \fi
+       %
+       \leavevmode
+       \ifnum\filenamelength>0
+         % With default settings,
+         % XeTeX (xdvipdfmx) replaces link destination names with integers.
+         % In this case, the replaced destination names of
+         % remote PDFs are no longer known.  In order to avoid a replacement,
+         % you can use xdvipdfmx's command line option `-C 0x0010'.
+         % If you use XeTeX 0.99996+ (TeX Live 2016+),
+         % this command line option is no longer necessary
+         % because we can use the `dvipdfmx:config' special.
+         \special{pdf:bann << /Border [0 0 0] /Type /Annot /Subtype /Link /A
+           << /S /GoToR /F (\the\filename.pdf) /D (\pdfdestname) >> >>}%
+       \else
+         \special{pdf:bann << /Border [0 0 0] /Type /Annot /Subtype /Link /A
+           << /S /GoTo /D (\pdfdestname) >> >>}%
+       \fi
+      }%
+      \setcolor{\linkcolor}%
+    \fi
   \fi
-  %
-  % Float references are printed completely differently: "Figure 1.2"
-  % instead of "[somenode], p.3".  We distinguish them by the
-  % LABEL-title being set to a magic string.
   {%
     % Have to otherify everything special to allow the \csname to
     % include an _ in the xref name, etc.
     \indexnofonts
     \turnoffactive
+    \def\value##1{##1}%
     \expandafter\global\expandafter\let\expandafter\Xthisreftitle
       \csname XR#1-title\endcsname
   }%
+  %
+  % Float references are printed completely differently: "Figure 1.2"
+  % instead of "[somenode], p.3".  \iffloat distinguishes them by
+  % \Xthisreftitle being set to a magic string.
   \iffloat\Xthisreftitle
     % If the user specified the print name (third arg) to the ref,
     % print it instead of our usual "Figure 1.2".
@@ -7883,7 +8947,7 @@ end
       \printedrefname
     \fi
     %
-    % if the user also gave the printed manual name (fifth arg), append
+    % If the user also gave the printed manual name (fifth arg), append
     % "in MANUALNAME".
     \ifdim \wd\printedmanualbox > 0pt
       \space \putwordin{} \cite{\printedmanual}%
@@ -7898,32 +8962,20 @@ end
     % this is a loss.  Therefore, we give the text of the node name
     % again, so it is as if TeX is seeing it for the first time.
     % 
-    % Cross-manual reference.  Only include the "Section ``foo'' in" if
-    % the foo is neither missing or Top.  Thus, @xref{,,,foo,The Foo Manual}
-    % outputs simply "see The Foo Manual".
     \ifdim \wd\printedmanualbox > 0pt
-      % What is the 7sp about?  The idea is that we also want to omit
-      % the Section part if we would be printing "Top", since they are
-      % clearly trying to refer to the whole manual.  But, this being
-      % TeX, we can't easily compare strings while ignoring the possible
-      % spaces before and after in the input.  By adding the arbitrary
-      % 7sp, we make it much less likely that a real node name would
-      % happen to have the same width as "Top" (e.g., in a monospaced font).
-      % I hope it will never happen in practice.
+      % Cross-manual reference with a printed manual name.
       % 
-      % For the same basic reason, we retypeset the "Top" at every
-      % reference, since the current font is indeterminate.
+      \crossmanualxref{\cite{\printedmanual\unskip}}%
+    %
+    \else\ifdim \wd\infofilenamebox > 0pt
+      % Cross-manual reference with only an info filename (arg 4), no
+      % printed manual name (arg 5).  This is essentially the same as
+      % the case above; we output the filename, since we have nothing else.
       % 
-      \setbox\topbox = \hbox{Top\kern7sp}%
-      \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
-      \ifdim \wd2 > 7sp
-        \ifdim \wd2 = \wd\topbox \else
-          \putwordSection{} ``\printedrefname'' \putwordin{}\space
-        \fi
-      \fi
-      \cite{\printedmanual}%
+      \crossmanualxref{\code{\infofilename\unskip}}%
+    %
     \else
-      % Reference in this manual.
+      % Reference within this manual.
       %
       % _ (for example) has to be the character _ for the purposes of the
       % control sequence corresponding to the node, but it has to expand
@@ -7944,11 +8996,46 @@ end
       %
       % output the `page 3'.
       \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
-    \fi
+      % Add a , if xref followed by a space
+      \if\space\noexpand\tokenafterxref ,%
+      \else\ifx\	\tokenafterxref ,% @TAB
+      \else\ifx\*\tokenafterxref ,%   @*
+      \else\ifx\ \tokenafterxref ,%   @SPACE
+      \else\ifx\
+                \tokenafterxref ,%    @NL
+      \else\ifx\tie\tokenafterxref ,% @tie
+      \fi\fi\fi\fi\fi\fi
+    \fi\fi
   \fi
   \endlink
 \endgroup}
 
+% Output a cross-manual xref to #1.  Used just above (twice).
+% 
+% Only include the text "Section ``foo'' in" if the foo is neither
+% missing or Top.  Thus, @xref{,,,foo,The Foo Manual} outputs simply
+% "see The Foo Manual", the idea being to refer to the whole manual.
+% 
+% But, this being TeX, we can't easily compare our node name against the
+% string "Top" while ignoring the possible spaces before and after in
+% the input.  By adding the arbitrary 7sp below, we make it much less
+% likely that a real node name would have the same width as "Top" (e.g.,
+% in a monospaced font).  Hopefully it will never happen in practice.
+% 
+% For the same basic reason, we retypeset the "Top" at every
+% reference, since the current font is indeterminate.
+% 
+\def\crossmanualxref#1{%
+  \setbox\toprefbox = \hbox{Top\kern7sp}%
+  \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
+  \ifdim \wd2 > 7sp  % nonempty?
+    \ifdim \wd2 = \wd\toprefbox \else  % same as Top?
+      \putwordSection{} ``\printedrefname'' \putwordin{}\space
+    \fi
+  \fi
+  #1%
+}
+
 % This macro is called from \xrefX for the `[nodename]' part of xref
 % output.  It's a separate macro only so it can be changed more easily,
 % since square brackets don't work well in some documents.  Particularly
@@ -7984,13 +9071,14 @@ end
   \fi\fi\fi
 }
 
-% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
-% If its value is nonempty, SUFFIX is output afterward.
-%
+% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME.  SUFFIX 
+% is output afterwards if non-empty.
 \def\refx#1#2{%
+  \requireauxfile
   {%
     \indexnofonts
     \otherbackslash
+    \def\value##1{##1}%
     \expandafter\global\expandafter\let\expandafter\thisrefX
       \csname XR#1\endcsname
   }%
@@ -8015,16 +9103,18 @@ end
   #2% Output the suffix in any case.
 }
 
-% This is the macro invoked by entries in the aux file.  Usually it's
-% just a \def (we prepend XR to the control sequence name to avoid
-% collisions).  But if this is a float type, we have more work to do.
+% This is the macro invoked by entries in the aux file.  Define a control 
+% sequence for a cross-reference target (we prepend XR to the control sequence 
+% name to avoid collisions).  The value is the page number.  If this is a float 
+% type, we have more work to do.
 %
 \def\xrdef#1#2{%
-  {% The node name might contain 8-bit characters, which in our current
-   % implementation are changed to commands like @'e.  Don't let these
-   % mess up the control sequence name.
+  {% Expand the node or anchor name to remove control sequences.
+   % \turnoffactive stops 8-bit characters being changed to commands
+   % like @'e.  \refx does the same to retrieve the value in the definition.
     \indexnofonts
     \turnoffactive
+    \def\value##1{##1}%
     \xdef\safexrefname{#1}%
   }%
   %
@@ -8051,6 +9141,23 @@ end
   \fi
 }
 
+% If working on a large document in chapters, it is convenient to
+% be able to disable indexing, cross-referencing, and contents, for test runs.
+% This is done with @novalidate at the beginning of the file.
+%
+\newif\iflinks \linkstrue % by default we want the aux files.
+\let\novalidate = \linksfalse
+
+% Used when writing to the aux file, or when using data from it.
+\def\requireauxfile{%
+  \iflinks
+    \tryauxfile
+    % Open the new aux file.  TeX will close it automatically at exit.
+    \immediate\openout\auxfile=\jobname.aux
+  \fi
+  \global\let\requireauxfile=\relax   % Only do this once.
+}
+
 % Read the last existing aux file, if any.  No error if none exists.
 %
 \def\tryauxfile{%
@@ -8129,16 +9236,6 @@ end
   % now.  --karl, 15jan04.
   \catcode`\\=\other
   %
-  % Make the characters 128-255 be printing characters.
-  {%
-    \count1=128
-    \def\loop{%
-      \catcode\count1=\other
-      \advance\count1 by 1
-      \ifnum \count1<256 \loop \fi
-    }%
-  }%
-  %
   % @ is our escape character in .aux files, and we need braces.
   \catcode`\{=1
   \catcode`\}=2
@@ -8171,8 +9268,6 @@ end
 %
 % Auto-number footnotes.  Otherwise like plain.
 \gdef\footnote{%
-  \let\indent=\ptexindent
-  \let\noindent=\ptexnoindent
   \global\advance\footnoteno by \@ne
   \edef\thisfootno{$^{\the\footnoteno}$}%
   %
@@ -8196,10 +9291,15 @@ end
 %
 \gdef\dofootnote{%
   \insert\footins\bgroup
+  %
+  % Nested footnotes are not supported in TeX, that would take a lot
+  % more work.  (\startsavinginserts does not suffice.)
+  \let\footnote=\errfootnotenest
+  %
   % We want to typeset this text as a normal paragraph, even if the
   % footnote reference occurs in (for example) a display environment.
   % So reset some parameters.
-  \hsize=\pagewidth
+  \hsize=\txipagewidth
   \interlinepenalty\interfootnotelinepenalty
   \splittopskip\ht\strutbox % top baseline for broken footnotes
   \splitmaxdepth\dp\strutbox
@@ -8233,13 +9333,24 @@ end
 }
 }%end \catcode `\@=11
 
+\def\errfootnotenest{%
+  \errhelp=\EMsimple
+  \errmessage{Nested footnotes not supported in texinfo.tex,
+    even though they work in makeinfo; sorry}
+}
+
+\def\errfootnoteheading{%
+  \errhelp=\EMsimple
+  \errmessage{Footnotes in chapters, sections, etc., are not supported}
+}
+
 % In case a @footnote appears in a vbox, save the footnote text and create
 % the real \insert just after the vbox finished.  Otherwise, the insertion
 % would be lost.
 % Similarly, if a @footnote appears inside an alignment, save the footnote
 % text to a box and make the \insert when a row of the table is finished.
 % And the same can be done for other insert classes.  --kasal, 16nov03.
-
+%
 % Replace the \insert primitive by a cheating macro.
 % Deeper inside, just make sure that the saved insertions are not spilled
 % out prematurely.
@@ -8316,7 +9427,7 @@ end
   it from ftp://tug.org/tex/epsf.tex.}
 %
 \def\image#1{%
-  \ifx\epsfbox\thisiundefined
+  \ifx\epsfbox\thisisundefined
     \ifwarnednoepsf \else
       \errhelp = \noepsfhelp
       \errmessage{epsf.tex not found, images will be ignored}%
@@ -8337,9 +9448,17 @@ end
 \def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup
   \catcode`\^^M = 5     % in case we're inside an example
   \normalturnoffactive  % allow _ et al. in names
+  \def\xprocessmacroarg{\eatspaces}% in case we are being used via a macro
   % If the image is by itself, center it.
   \ifvmode
     \imagevmodetrue
+  \else \ifx\centersub\centerV
+    % for @center @image, we need a vbox so we can have our vertical space
+    \imagevmodetrue
+    \vbox\bgroup % vbox has better behavior than vtop herev
+  \fi\fi
+  %
+  \ifimagevmode
     \nobreak\medskip
     % Usually we'll have text after the image which will insert
     % \parskip glue, so insert it here too to equalize the space
@@ -8349,21 +9468,37 @@ end
   \fi
   %
   % Leave vertical mode so that indentation from an enclosing
-  % environment such as @quotation is respected.  On the other hand, if
-  % it's at the top level, we don't want the normal paragraph indentation.
-  \noindent
+  %  environment such as @quotation is respected.
+  % However, if we're at the top level, we don't want the
+  %  normal paragraph indentation.
+  % On the other hand, if we are in the case of @center @image, we don't
+  %  want to start a paragraph, which will create a hsize-width box and
+  %  eradicate the centering.
+  \ifx\centersub\centerV\else \noindent \fi
   %
   % Output the image.
   \ifpdf
+    % For pdfTeX and LuaTeX <= 0.80
     \dopdfimage{#1}{#2}{#3}%
   \else
-    % \epsfbox itself resets \epsf?size at each figure.
-    \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
-    \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
-    \epsfbox{#1.eps}%
+    \ifx\XeTeXrevision\thisisundefined
+      % For epsf.tex
+      % \epsfbox itself resets \epsf?size at each figure.
+      \setbox0 = \hbox{\ignorespaces #2}%
+        \ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
+      \setbox0 = \hbox{\ignorespaces #3}%
+        \ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
+      \epsfbox{#1.eps}%
+    \else
+      % For XeTeX
+      \doxeteximage{#1}{#2}{#3}%
+    \fi
   \fi
   %
-  \ifimagevmode \medskip \fi  % space after the standalone image
+  \ifimagevmode
+    \medskip  % space after a standalone image
+  \fi  
+  \ifx\centersub\centerV \egroup \fi
 \endgroup}
 
 
@@ -8479,7 +9614,7 @@ end
     %
     \ifx\thiscaption\empty \else
       \ifx\floatident\empty \else
-	\appendtomacro\captionline{: }% had ident, so need a colon between
+        \appendtomacro\captionline{: }% had ident, so need a colon between
       \fi
       %
       % caption text.
@@ -8503,32 +9638,20 @@ end
       % \floatlabel-lof.  Besides \floatident, we include the short
       % caption if specified, else the full caption if specified, else nothing.
       {%
+        \requireauxfile
         \atdummies
         %
-        % since we read the caption text in the macro world, where ^^M
-        % is turned into a normal character, we have to scan it back, so
-        % we don't write the literal three characters "^^M" into the aux file.
-	\scanexp{%
-	  \xdef\noexpand\gtemp{%
-	    \ifx\thisshortcaption\empty
-	      \thiscaption
-	    \else
-	      \thisshortcaption
-	    \fi
-	  }%
-	}%
+        \ifx\thisshortcaption\empty
+          \def\gtemp{\thiscaption}%
+        \else
+          \def\gtemp{\thisshortcaption}%
+        \fi
         \immediate\write\auxfile{@xrdef{\floatlabel-lof}{\floatident
-	  \ifx\gtemp\empty \else : \gtemp \fi}}%
+          \ifx\gtemp\empty \else : \gtemp \fi}}%
       }%
     \fi
   \egroup  % end of \vtop
   %
-  % place the captured inserts
-  %
-  % BEWARE: when the floats start floating, we have to issue warning
-  % whenever an insert appears inside a float which could possibly
-  % float. --kasal, 26may04
-  %
   \checkinserts
 }
 
@@ -8642,20 +9765,20 @@ end
 {
   \catcode`\_ = \active
   \globaldefs=1
-\parseargdef\documentlanguage{\begingroup
-  \let_=\normalunderscore  % normal _ character for filenames
+\parseargdef\documentlanguage{%
   \tex % read txi-??.tex file in plain TeX.
     % Read the file by the name they passed if it exists.
+    \let_ = \normalunderscore  % normal _ character for filename test
     \openin 1 txi-#1.tex
     \ifeof 1
-      \documentlanguagetrywithoutunderscore{#1_\finish}%
+      \documentlanguagetrywithoutunderscore #1_\finish
     \else
       \globaldefs = 1  % everything in the txi-LL files needs to persist
       \input txi-#1.tex
     \fi
     \closein 1
   \endgroup % end raw TeX
-\endgroup}
+}
 %
 % If they passed de_DE, and txi-de_DE.tex doesn't exist,
 % try txi-de.tex.
@@ -8703,6 +9826,70 @@ directory should work if nowhere else do
   \global\righthyphenmin = #3\relax
 }
 
+% XeTeX and LuaTeX can handle Unicode natively.
+% Their default I/O uses UTF-8 sequences instead of a byte-wise operation.
+% Other TeX engines' I/O (pdfTeX, etc.) is byte-wise.
+%
+\newif\iftxinativeunicodecapable
+\newif\iftxiusebytewiseio
+
+\ifx\XeTeXrevision\thisisundefined
+  \ifx\luatexversion\thisisundefined
+    \txinativeunicodecapablefalse
+    \txiusebytewiseiotrue
+  \else
+    \txinativeunicodecapabletrue
+    \txiusebytewiseiofalse
+  \fi
+\else
+  \txinativeunicodecapabletrue
+  \txiusebytewiseiofalse
+\fi
+
+% Set I/O by bytes instead of UTF-8 sequence for XeTeX and LuaTex
+% for non-UTF-8 (byte-wise) encodings.
+%
+\def\setbytewiseio{%
+  \ifx\XeTeXrevision\thisisundefined
+  \else
+    \XeTeXdefaultencoding "bytes"  % For subsequent files to be read
+    \XeTeXinputencoding "bytes"  % For document root file
+    % Unfortunately, there seems to be no corresponding XeTeX command for
+    % output encoding.  This is a problem for auxiliary index and TOC files.
+    % The only solution would be perhaps to write out @U{...} sequences in
+    % place of non-ASCII characters.
+  \fi
+
+  \ifx\luatexversion\thisisundefined
+  \else
+    \directlua{
+    local utf8_char, byte, gsub = unicode.utf8.char, string.byte, string.gsub
+    local function convert_char (char)
+      return utf8_char(byte(char))
+    end
+
+    local function convert_line (line)
+      return gsub(line, ".", convert_char)
+    end
+
+    callback.register("process_input_buffer", convert_line)
+
+    local function convert_line_out (line)
+      local line_out = ""
+      for c in string.utfvalues(line) do
+         line_out = line_out .. string.char(c)
+      end
+      return line_out
+    end
+
+    callback.register("process_output_buffer", convert_line_out)
+    }
+  \fi
+
+  \txiusebytewiseiotrue
+}
+
+
 % Helpers for encodings.
 % Set the catcode of characters 128 through 255 to the specified number.
 %
@@ -8725,7 +9912,9 @@ directory should work if nowhere else do
 % @documentencoding sets the definition of non-ASCII characters
 % according to the specified encoding.
 %
-\parseargdef\documentencoding{%
+\def\documentencoding{\parseargusing\filenamecatcodes\documentencodingzzz}
+\def\documentencodingzzz#1{%
+  %
   % Encoding being declared for the document.
   \def\declaredencoding{\csname #1.enc\endcsname}%
   %
@@ -8741,35 +9930,66 @@ directory should work if nowhere else do
      \asciichardefs
   %
   \else \ifx \declaredencoding \lattwo
+     \iftxinativeunicodecapable
+       \setbytewiseio
+     \fi
      \setnonasciicharscatcode\active
      \lattwochardefs
   %
   \else \ifx \declaredencoding \latone
+     \iftxinativeunicodecapable
+       \setbytewiseio
+     \fi
      \setnonasciicharscatcode\active
      \latonechardefs
   %
   \else \ifx \declaredencoding \latnine
+     \iftxinativeunicodecapable
+       \setbytewiseio
+     \fi
      \setnonasciicharscatcode\active
      \latninechardefs
   %
   \else \ifx \declaredencoding \utfeight
-     \setnonasciicharscatcode\active
-     \utfeightchardefs
+     \iftxinativeunicodecapable
+       % For native Unicode handling (XeTeX and LuaTeX)
+       \nativeunicodechardefs
+     \else
+       % For treating UTF-8 as byte sequences (TeX, eTeX and pdfTeX)
+       \setnonasciicharscatcode\active
+       % since we already invoked \utfeightchardefs at the top level
+       % (below), do not re-invoke it, otherwise our check for duplicated
+       % definitions gets triggered.  Making non-ascii chars active is
+       % sufficient.
+     \fi
   %
   \else
-    \message{Unknown document encoding #1, ignoring.}%
+    \message{Ignoring unknown document encoding: #1.}%
   %
   \fi % utfeight
   \fi % latnine
   \fi % latone
   \fi % lattwo
   \fi % ascii
+  %
+  \ifx\XeTeXrevision\thisisundefined
+  \else
+    \ifx \declaredencoding \utfeight
+    \else
+      \ifx \declaredencoding \ascii
+      \else
+        \message{Warning: XeTeX with non-UTF-8 encodings cannot handle %
+        non-ASCII characters in auxiliary files.}%
+      \fi
+    \fi
+  \fi
 }
 
+% emacs-page
 % A message to be logged when using a character that isn't available
 % the default font encoding (OT1).
 %
-\def\missingcharmsg#1{\message{Character missing in OT1 encoding: #1.}}
+\def\missingcharmsg#1{\message{Character missing, sorry: #1.}}
 
 % Take account of \c (plain) vs. \, (Texinfo) difference.
 \def\cedilla#1{\ifx\c\ptexc\c{#1}\else\,{#1}\fi}
@@ -8779,111 +9999,119 @@ directory should work if nowhere else do
 % macros containing the character definitions.
 \setnonasciicharscatcode\active
 %
+
+\def\gdefchar#1#2{%
+\gdef#1{%
+   \ifpassthroughchars
+     \string#1%
+   \else
+     #2%
+   \fi
+}}
+
 % Latin1 (ISO-8859-1) character definitions.
 \def\latonechardefs{%
-  \gdef^^a0{\tie}
-  \gdef^^a1{\exclamdown}
-  \gdef^^a2{\missingcharmsg{CENT SIGN}}
-  \gdef^^a3{{\pounds}}
-  \gdef^^a4{\missingcharmsg{CURRENCY SIGN}}
-  \gdef^^a5{\missingcharmsg{YEN SIGN}}
-  \gdef^^a6{\missingcharmsg{BROKEN BAR}}
-  \gdef^^a7{\S}
-  \gdef^^a8{\"{}}
-  \gdef^^a9{\copyright}
-  \gdef^^aa{\ordf}
-  \gdef^^ab{\guillemetleft}
-  \gdef^^ac{$\lnot$}
-  \gdef^^ad{\-}
-  \gdef^^ae{\registeredsymbol}
-  \gdef^^af{\={}}
-  %
-  \gdef^^b0{\textdegree}
-  \gdef^^b1{$\pm$}
-  \gdef^^b2{$^2$}
-  \gdef^^b3{$^3$}
-  \gdef^^b4{\'{}}
-  \gdef^^b5{$\mu$}
-  \gdef^^b6{\P}
-  %
-  \gdef^^b7{$^.$}
-  \gdef^^b8{\cedilla\ }
-  \gdef^^b9{$^1$}
-  \gdef^^ba{\ordm}
-  %
-  \gdef^^bb{\guillemetright}
-  \gdef^^bc{$1\over4$}
-  \gdef^^bd{$1\over2$}
-  \gdef^^be{$3\over4$}
-  \gdef^^bf{\questiondown}
-  %
-  \gdef^^c0{\`A}
-  \gdef^^c1{\'A}
-  \gdef^^c2{\^A}
-  \gdef^^c3{\~A}
-  \gdef^^c4{\"A}
-  \gdef^^c5{\ringaccent A}
-  \gdef^^c6{\AE}
-  \gdef^^c7{\cedilla C}
-  \gdef^^c8{\`E}
-  \gdef^^c9{\'E}
-  \gdef^^ca{\^E}
-  \gdef^^cb{\"E}
-  \gdef^^cc{\`I}
-  \gdef^^cd{\'I}
-  \gdef^^ce{\^I}
-  \gdef^^cf{\"I}
-  %
-  \gdef^^d0{\DH}
-  \gdef^^d1{\~N}
-  \gdef^^d2{\`O}
-  \gdef^^d3{\'O}
-  \gdef^^d4{\^O}
-  \gdef^^d5{\~O}
-  \gdef^^d6{\"O}
-  \gdef^^d7{$\times$}
-  \gdef^^d8{\O}
-  \gdef^^d9{\`U}
-  \gdef^^da{\'U}
-  \gdef^^db{\^U}
-  \gdef^^dc{\"U}
-  \gdef^^dd{\'Y}
-  \gdef^^de{\TH}
-  \gdef^^df{\ss}
-  %
-  \gdef^^e0{\`a}
-  \gdef^^e1{\'a}
-  \gdef^^e2{\^a}
-  \gdef^^e3{\~a}
-  \gdef^^e4{\"a}
-  \gdef^^e5{\ringaccent a}
-  \gdef^^e6{\ae}
-  \gdef^^e7{\cedilla c}
-  \gdef^^e8{\`e}
-  \gdef^^e9{\'e}
-  \gdef^^ea{\^e}
-  \gdef^^eb{\"e}
-  \gdef^^ec{\`{\dotless i}}
-  \gdef^^ed{\'{\dotless i}}
-  \gdef^^ee{\^{\dotless i}}
-  \gdef^^ef{\"{\dotless i}}
-  %
-  \gdef^^f0{\dh}
-  \gdef^^f1{\~n}
-  \gdef^^f2{\`o}
-  \gdef^^f3{\'o}
-  \gdef^^f4{\^o}
-  \gdef^^f5{\~o}
-  \gdef^^f6{\"o}
-  \gdef^^f7{$\div$}
-  \gdef^^f8{\o}
-  \gdef^^f9{\`u}
-  \gdef^^fa{\'u}
-  \gdef^^fb{\^u}
-  \gdef^^fc{\"u}
-  \gdef^^fd{\'y}
-  \gdef^^fe{\th}
-  \gdef^^ff{\"y}
+  \gdefchar^^a0{\tie}
+  \gdefchar^^a1{\exclamdown}
+  \gdefchar^^a2{{\tcfont \char162}} % cent
+  \gdefchar^^a3{\pounds{}}
+  \gdefchar^^a4{{\tcfont \char164}} % currency
+  \gdefchar^^a5{{\tcfont \char165}} % yen
+  \gdefchar^^a6{{\tcfont \char166}} % broken bar
+  \gdefchar^^a7{\S}
+  \gdefchar^^a8{\"{}}
+  \gdefchar^^a9{\copyright{}}
+  \gdefchar^^aa{\ordf}
+  \gdefchar^^ab{\guillemetleft{}}
+  \gdefchar^^ac{\ensuremath\lnot}
+  \gdefchar^^ad{\-}
+  \gdefchar^^ae{\registeredsymbol{}}
+  \gdefchar^^af{\={}}
+  %
+  \gdefchar^^b0{\textdegree}
+  \gdefchar^^b1{$\pm$}
+  \gdefchar^^b2{$^2$}
+  \gdefchar^^b3{$^3$}
+  \gdefchar^^b4{\'{}}
+  \gdefchar^^b5{$\mu$}
+  \gdefchar^^b6{\P}
+  \gdefchar^^b7{\ensuremath\cdot}
+  \gdefchar^^b8{\cedilla\ }
+  \gdefchar^^b9{$^1$}
+  \gdefchar^^ba{\ordm}
+  \gdefchar^^bb{\guillemetright{}}
+  \gdefchar^^bc{$1\over4$}
+  \gdefchar^^bd{$1\over2$}
+  \gdefchar^^be{$3\over4$}
+  \gdefchar^^bf{\questiondown}
+  %
+  \gdefchar^^c0{\`A}
+  \gdefchar^^c1{\'A}
+  \gdefchar^^c2{\^A}
+  \gdefchar^^c3{\~A}
+  \gdefchar^^c4{\"A}
+  \gdefchar^^c5{\ringaccent A}
+  \gdefchar^^c6{\AE}
+  \gdefchar^^c7{\cedilla C}
+  \gdefchar^^c8{\`E}
+  \gdefchar^^c9{\'E}
+  \gdefchar^^ca{\^E}
+  \gdefchar^^cb{\"E}
+  \gdefchar^^cc{\`I}
+  \gdefchar^^cd{\'I}
+  \gdefchar^^ce{\^I}
+  \gdefchar^^cf{\"I}
+  %
+  \gdefchar^^d0{\DH}
+  \gdefchar^^d1{\~N}
+  \gdefchar^^d2{\`O}
+  \gdefchar^^d3{\'O}
+  \gdefchar^^d4{\^O}
+  \gdefchar^^d5{\~O}
+  \gdefchar^^d6{\"O}
+  \gdefchar^^d7{$\times$}
+  \gdefchar^^d8{\O}
+  \gdefchar^^d9{\`U}
+  \gdefchar^^da{\'U}
+  \gdefchar^^db{\^U}
+  \gdefchar^^dc{\"U}
+  \gdefchar^^dd{\'Y}
+  \gdefchar^^de{\TH}
+  \gdefchar^^df{\ss}
+  %
+  \gdefchar^^e0{\`a}
+  \gdefchar^^e1{\'a}
+  \gdefchar^^e2{\^a}
+  \gdefchar^^e3{\~a}
+  \gdefchar^^e4{\"a}
+  \gdefchar^^e5{\ringaccent a}
+  \gdefchar^^e6{\ae}
+  \gdefchar^^e7{\cedilla c}
+  \gdefchar^^e8{\`e}
+  \gdefchar^^e9{\'e}
+  \gdefchar^^ea{\^e}
+  \gdefchar^^eb{\"e}
+  \gdefchar^^ec{\`{\dotless i}}
+  \gdefchar^^ed{\'{\dotless i}}
+  \gdefchar^^ee{\^{\dotless i}}
+  \gdefchar^^ef{\"{\dotless i}}
+  %
+  \gdefchar^^f0{\dh}
+  \gdefchar^^f1{\~n}
+  \gdefchar^^f2{\`o}
+  \gdefchar^^f3{\'o}
+  \gdefchar^^f4{\^o}
+  \gdefchar^^f5{\~o}
+  \gdefchar^^f6{\"o}
+  \gdefchar^^f7{$\div$}
+  \gdefchar^^f8{\o}
+  \gdefchar^^f9{\`u}
+  \gdefchar^^fa{\'u}
+  \gdefchar^^fb{\^u}
+  \gdefchar^^fc{\"u}
+  \gdefchar^^fd{\'y}
+  \gdefchar^^fe{\th}
+  \gdefchar^^ff{\"y}
 }
 
 % Latin9 (ISO-8859-15) encoding character definitions.
@@ -8891,119 +10119,119 @@ directory should work if nowhere else do
   % Encoding is almost identical to Latin1.
   \latonechardefs
   %
-  \gdef^^a4{\euro}
-  \gdef^^a6{\v S}
-  \gdef^^a8{\v s}
-  \gdef^^b4{\v Z}
-  \gdef^^b8{\v z}
-  \gdef^^bc{\OE}
-  \gdef^^bd{\oe}
-  \gdef^^be{\"Y}
+  \gdefchar^^a4{\euro{}}
+  \gdefchar^^a6{\v S}
+  \gdefchar^^a8{\v s}
+  \gdefchar^^b4{\v Z}
+  \gdefchar^^b8{\v z}
+  \gdefchar^^bc{\OE}
+  \gdefchar^^bd{\oe}
+  \gdefchar^^be{\"Y}
 }
 
 % Latin2 (ISO-8859-2) character definitions.
 \def\lattwochardefs{%
-  \gdef^^a0{\tie}
-  \gdef^^a1{\ogonek{A}}
-  \gdef^^a2{\u{}}
-  \gdef^^a3{\L}
-  \gdef^^a4{\missingcharmsg{CURRENCY SIGN}}
-  \gdef^^a5{\v L}
-  \gdef^^a6{\'S}
-  \gdef^^a7{\S}
-  \gdef^^a8{\"{}}
-  \gdef^^a9{\v S}
-  \gdef^^aa{\cedilla S}
-  \gdef^^ab{\v T}
-  \gdef^^ac{\'Z}
-  \gdef^^ad{\-}
-  \gdef^^ae{\v Z}
-  \gdef^^af{\dotaccent Z}
-  %
-  \gdef^^b0{\textdegree}
-  \gdef^^b1{\ogonek{a}}
-  \gdef^^b2{\ogonek{ }}
-  \gdef^^b3{\l}
-  \gdef^^b4{\'{}}
-  \gdef^^b5{\v l}
-  \gdef^^b6{\'s}
-  \gdef^^b7{\v{}}
-  \gdef^^b8{\cedilla\ }
-  \gdef^^b9{\v s}
-  \gdef^^ba{\cedilla s}
-  \gdef^^bb{\v t}
-  \gdef^^bc{\'z}
-  \gdef^^bd{\H{}}
-  \gdef^^be{\v z}
-  \gdef^^bf{\dotaccent z}
-  %
-  \gdef^^c0{\'R}
-  \gdef^^c1{\'A}
-  \gdef^^c2{\^A}
-  \gdef^^c3{\u A}
-  \gdef^^c4{\"A}
-  \gdef^^c5{\'L}
-  \gdef^^c6{\'C}
-  \gdef^^c7{\cedilla C}
-  \gdef^^c8{\v C}
-  \gdef^^c9{\'E}
-  \gdef^^ca{\ogonek{E}}
-  \gdef^^cb{\"E}
-  \gdef^^cc{\v E}
-  \gdef^^cd{\'I}
-  \gdef^^ce{\^I}
-  \gdef^^cf{\v D}
-  %
-  \gdef^^d0{\DH}
-  \gdef^^d1{\'N}
-  \gdef^^d2{\v N}
-  \gdef^^d3{\'O}
-  \gdef^^d4{\^O}
-  \gdef^^d5{\H O}
-  \gdef^^d6{\"O}
-  \gdef^^d7{$\times$}
-  \gdef^^d8{\v R}
-  \gdef^^d9{\ringaccent U}
-  \gdef^^da{\'U}
-  \gdef^^db{\H U}
-  \gdef^^dc{\"U}
-  \gdef^^dd{\'Y}
-  \gdef^^de{\cedilla T}
-  \gdef^^df{\ss}
-  %
-  \gdef^^e0{\'r}
-  \gdef^^e1{\'a}
-  \gdef^^e2{\^a}
-  \gdef^^e3{\u a}
-  \gdef^^e4{\"a}
-  \gdef^^e5{\'l}
-  \gdef^^e6{\'c}
-  \gdef^^e7{\cedilla c}
-  \gdef^^e8{\v c}
-  \gdef^^e9{\'e}
-  \gdef^^ea{\ogonek{e}}
-  \gdef^^eb{\"e}
-  \gdef^^ec{\v e}
-  \gdef^^ed{\'{\dotless{i}}}
-  \gdef^^ee{\^{\dotless{i}}}
-  \gdef^^ef{\v d}
-  %
-  \gdef^^f0{\dh}
-  \gdef^^f1{\'n}
-  \gdef^^f2{\v n}
-  \gdef^^f3{\'o}
-  \gdef^^f4{\^o}
-  \gdef^^f5{\H o}
-  \gdef^^f6{\"o}
-  \gdef^^f7{$\div$}
-  \gdef^^f8{\v r}
-  \gdef^^f9{\ringaccent u}
-  \gdef^^fa{\'u}
-  \gdef^^fb{\H u}
-  \gdef^^fc{\"u}
-  \gdef^^fd{\'y}
-  \gdef^^fe{\cedilla t}
-  \gdef^^ff{\dotaccent{}}
+  \gdefchar^^a0{\tie}
+  \gdefchar^^a1{\ogonek{A}}
+  \gdefchar^^a2{\u{}}
+  \gdefchar^^a3{\L}
+  \gdefchar^^a4{\missingcharmsg{CURRENCY SIGN}}
+  \gdefchar^^a5{\v L}
+  \gdefchar^^a6{\'S}
+  \gdefchar^^a7{\S}
+  \gdefchar^^a8{\"{}}
+  \gdefchar^^a9{\v S}
+  \gdefchar^^aa{\cedilla S}
+  \gdefchar^^ab{\v T}
+  \gdefchar^^ac{\'Z}
+  \gdefchar^^ad{\-}
+  \gdefchar^^ae{\v Z}
+  \gdefchar^^af{\dotaccent Z}
+  %
+  \gdefchar^^b0{\textdegree{}}
+  \gdefchar^^b1{\ogonek{a}}
+  \gdefchar^^b2{\ogonek{ }}
+  \gdefchar^^b3{\l}
+  \gdefchar^^b4{\'{}}
+  \gdefchar^^b5{\v l}
+  \gdefchar^^b6{\'s}
+  \gdefchar^^b7{\v{}}
+  \gdefchar^^b8{\cedilla\ }
+  \gdefchar^^b9{\v s}
+  \gdefchar^^ba{\cedilla s}
+  \gdefchar^^bb{\v t}
+  \gdefchar^^bc{\'z}
+  \gdefchar^^bd{\H{}}
+  \gdefchar^^be{\v z}
+  \gdefchar^^bf{\dotaccent z}
+  %
+  \gdefchar^^c0{\'R}
+  \gdefchar^^c1{\'A}
+  \gdefchar^^c2{\^A}
+  \gdefchar^^c3{\u A}
+  \gdefchar^^c4{\"A}
+  \gdefchar^^c5{\'L}
+  \gdefchar^^c6{\'C}
+  \gdefchar^^c7{\cedilla C}
+  \gdefchar^^c8{\v C}
+  \gdefchar^^c9{\'E}
+  \gdefchar^^ca{\ogonek{E}}
+  \gdefchar^^cb{\"E}
+  \gdefchar^^cc{\v E}
+  \gdefchar^^cd{\'I}
+  \gdefchar^^ce{\^I}
+  \gdefchar^^cf{\v D}
+  %
+  \gdefchar^^d0{\DH}
+  \gdefchar^^d1{\'N}
+  \gdefchar^^d2{\v N}
+  \gdefchar^^d3{\'O}
+  \gdefchar^^d4{\^O}
+  \gdefchar^^d5{\H O}
+  \gdefchar^^d6{\"O}
+  \gdefchar^^d7{$\times$}
+  \gdefchar^^d8{\v R}
+  \gdefchar^^d9{\ringaccent U}
+  \gdefchar^^da{\'U}
+  \gdefchar^^db{\H U}
+  \gdefchar^^dc{\"U}
+  \gdefchar^^dd{\'Y}
+  \gdefchar^^de{\cedilla T}
+  \gdefchar^^df{\ss}
+  %
+  \gdefchar^^e0{\'r}
+  \gdefchar^^e1{\'a}
+  \gdefchar^^e2{\^a}
+  \gdefchar^^e3{\u a}
+  \gdefchar^^e4{\"a}
+  \gdefchar^^e5{\'l}
+  \gdefchar^^e6{\'c}
+  \gdefchar^^e7{\cedilla c}
+  \gdefchar^^e8{\v c}
+  \gdefchar^^e9{\'e}
+  \gdefchar^^ea{\ogonek{e}}
+  \gdefchar^^eb{\"e}
+  \gdefchar^^ec{\v e}
+  \gdefchar^^ed{\'{\dotless{i}}}
+  \gdefchar^^ee{\^{\dotless{i}}}
+  \gdefchar^^ef{\v d}
+  %
+  \gdefchar^^f0{\dh}
+  \gdefchar^^f1{\'n}
+  \gdefchar^^f2{\v n}
+  \gdefchar^^f3{\'o}
+  \gdefchar^^f4{\^o}
+  \gdefchar^^f5{\H o}
+  \gdefchar^^f6{\"o}
+  \gdefchar^^f7{$\div$}
+  \gdefchar^^f8{\v r}
+  \gdefchar^^f9{\ringaccent u}
+  \gdefchar^^fa{\'u}
+  \gdefchar^^fb{\H u}
+  \gdefchar^^fc{\"u}
+  \gdefchar^^fd{\'y}
+  \gdefchar^^fe{\cedilla t}
+  \gdefchar^^ff{\dotaccent{}}
 }
 
 % UTF-8 character definitions.
@@ -9033,38 +10261,94 @@ directory should work if nowhere else do
   \fi
 }
 
+% Give non-ASCII bytes the active definitions for processing UTF-8 sequences
 \begingroup
   \catcode`\~13
+  \catcode`\$12
   \catcode`\"12
 
+  % Loop from \countUTFx to \countUTFy, performing \UTFviiiTmp
+  % substituting ~ and $ with a character token of that value.
   \def\UTFviiiLoop{%
     \global\catcode\countUTFx\active
     \uccode`\~\countUTFx
+    \uccode`\$\countUTFx
     \uppercase\expandafter{\UTFviiiTmp}%
     \advance\countUTFx by 1
     \ifnum\countUTFx < \countUTFy
       \expandafter\UTFviiiLoop
     \fi}
 
+  % For bytes other than the first in a UTF-8 sequence.  Not expected to
+  % be expanded except when writing to auxiliary files.
+  \countUTFx = "80
+  \countUTFy = "C2
+  \def\UTFviiiTmp{%
+    \gdef~{%
+        \ifpassthroughchars $\fi}}%
+  \UTFviiiLoop
+
   \countUTFx = "C2
   \countUTFy = "E0
   \def\UTFviiiTmp{%
-    \xdef~{\noexpand\UTFviiiTwoOctets\string~}}
+    \gdef~{%
+        \ifpassthroughchars $%
+        \else\expandafter\UTFviiiTwoOctets\expandafter$\fi}}%
   \UTFviiiLoop
 
   \countUTFx = "E0
   \countUTFy = "F0
   \def\UTFviiiTmp{%
-    \xdef~{\noexpand\UTFviiiThreeOctets\string~}}
+    \gdef~{%
+        \ifpassthroughchars $%
+        \else\expandafter\UTFviiiThreeOctets\expandafter$\fi}}%
   \UTFviiiLoop
 
   \countUTFx = "F0
   \countUTFy = "F4
   \def\UTFviiiTmp{%
-    \xdef~{\noexpand\UTFviiiFourOctets\string~}}
+    \gdef~{%
+        \ifpassthroughchars $%
+        \else\expandafter\UTFviiiFourOctets\expandafter$\fi
+        }}%
   \UTFviiiLoop
 \endgroup
 
+\def\globallet{\global\let} % save some \expandafter's below
+
+% @U{xxxx} to produce U+xxxx, if we support it.
+\def\U#1{%
+  \expandafter\ifx\csname uni:#1\endcsname \relax
+    \iftxinativeunicodecapable
+      % All Unicode characters can be used if native Unicode handling is
+      % active.  However, if the font does not have the glyph,
+      % letters are missing.
+      \begingroup
+        \uccode`\.="#1\relax
+        \uppercase{.}
+      \endgroup
+    \else
+      \errhelp = \EMsimple	
+      \errmessage{Unicode character U+#1 not supported, sorry}%
+    \fi
+  \else
+    \csname uni:#1\endcsname
+  \fi
+}
+
+% These macros are used here to construct the name of a control
+% sequence to be defined.
+\def\UTFviiiTwoOctetsName#1#2{%
+  \csname u8:#1\string #2\endcsname}%
+\def\UTFviiiThreeOctetsName#1#2#3{%
+  \csname u8:#1\string #2\string #3\endcsname}%
+\def\UTFviiiFourOctetsName#1#2#3#4{%
+  \csname u8:#1\string #2\string #3\string #4\endcsname}%
+
+% For UTF-8 byte sequences (TeX, e-TeX and pdfTeX),
+% provide a definition macro to replace a Unicode character;
+% this gets used by the @U command
+%
 \begingroup
   \catcode`\"=12
   \catcode`\<=12
@@ -9073,459 +10357,849 @@ directory should work if nowhere else do
   \catcode`\;=12
   \catcode`\!=12
   \catcode`\~=13
-
-  \gdef\DeclareUnicodeCharacter#1#2{%
+  \gdef\DeclareUnicodeCharacterUTFviii#1#2{%
     \countUTFz = "#1\relax
-    %\wlog{\space\space defining Unicode char U+#1 (decimal \the\countUTFz)}%
     \begingroup
       \parseXMLCharref
-      \def\UTFviiiTwoOctets##1##2{%
-        \csname u8:##1\string ##2\endcsname}%
-      \def\UTFviiiThreeOctets##1##2##3{%
-        \csname u8:##1\string ##2\string ##3\endcsname}%
-      \def\UTFviiiFourOctets##1##2##3##4{%
-        \csname u8:##1\string ##2\string ##3\string ##4\endcsname}%
-      \expandafter\expandafter\expandafter\expandafter
-       \expandafter\expandafter\expandafter
-       \gdef\UTFviiiTmp{#2}%
+    
+      % Give \u8:... its definition.  The sequence of seven \expandafter's
+      % expands after the \gdef three times, e.g.
+      %
+      % 1.  \UTFviiTwoOctetsName B1 B2
+      % 2.  \csname u8:B1 \string B2 \endcsname
+      % 3.  \u8: B1 B2  (a single control sequence token)
+      %
+      \expandafter\expandafter
+      \expandafter\expandafter
+      \expandafter\expandafter
+      \expandafter\gdef       \UTFviiiTmp{#2}%
+      % 
+      \expandafter\ifx\csname uni:#1\endcsname \relax \else
+       \message{Internal error, already defined: #1}%
+      \fi
+      %
+      % define an additional control sequence for this code point.
+      \expandafter\globallet\csname uni:#1\endcsname \UTFviiiTmp
     \endgroup}
-
+  %
+  % Given the value in \countUTFz as a Unicode code point, set \UTFviiiTmp
+  % to the corresponding UTF-8 sequence.
   \gdef\parseXMLCharref{%
     \ifnum\countUTFz < "A0\relax
       \errhelp = \EMsimple
       \errmessage{Cannot define Unicode char value < 00A0}%
     \else\ifnum\countUTFz < "800\relax
       \parseUTFviiiA,%
-      \parseUTFviiiB C\UTFviiiTwoOctets.,%
+      \parseUTFviiiB C\UTFviiiTwoOctetsName.,%
     \else\ifnum\countUTFz < "10000\relax
       \parseUTFviiiA;%
       \parseUTFviiiA,%
-      \parseUTFviiiB E\UTFviiiThreeOctets.{,;}%
+      \parseUTFviiiB E\UTFviiiThreeOctetsName.{,;}%
     \else
       \parseUTFviiiA;%
       \parseUTFviiiA,%
       \parseUTFviiiA!%
-      \parseUTFviiiB F\UTFviiiFourOctets.{!,;}%
+      \parseUTFviiiB F\UTFviiiFourOctetsName.{!,;}%
     \fi\fi\fi
   }
 
+  % Extract a byte from the end of the UTF-8 representation of \countUTFx.
+  % It must be a non-initial byte in the sequence.
+  % Change \uccode of #1 for it to be used in \parseUTFviiiB as one
+  % of the bytes.
   \gdef\parseUTFviiiA#1{%
     \countUTFx = \countUTFz
     \divide\countUTFz by 64
-    \countUTFy = \countUTFz
+    \countUTFy = \countUTFz  % Save to be the future value of \countUTFz.
     \multiply\countUTFz by 64
+    
+    % \countUTFz is now \countUTFx with the last 5 bits cleared.  Subtract
+    % in order to get the last five bits.
     \advance\countUTFx by -\countUTFz
+
+    % Convert this to the byte in the UTF-8 sequence.
     \advance\countUTFx by 128
     \uccode `#1\countUTFx
     \countUTFz = \countUTFy}
 
+  % Used to put a UTF-8 byte sequence into \UTFviiiTmp
+  % #1 is the increment for \countUTFz to yield a the first byte of the UTF-8
+  %    sequence.
+  % #2 is one of the \UTFviii*OctetsName macros.
+  % #3 is always a full stop (.)
+  % #4 is a template for the other bytes in the sequence.  The values for these
+  %    bytes is substituted in here with \uppercase using the \uccode's.
   \gdef\parseUTFviiiB#1#2#3#4{%
     \advance\countUTFz by "#10\relax
     \uccode `#3\countUTFz
     \uppercase{\gdef\UTFviiiTmp{#2#3#4}}}
 \endgroup
 
+% For native Unicode handling (XeTeX and LuaTeX),
+% provide a definition macro that sets a catcode to `other' non-globally
+%
+\def\DeclareUnicodeCharacterNativeOther#1#2{%
+  \catcode"#1=\other
+}
+
+% https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_M
+% U+0000..U+007F = https://en.wikipedia.org/wiki/Basic_Latin_(Unicode_block)
+% U+0080..U+00FF = https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)
+% U+0100..U+017F = https://en.wikipedia.org/wiki/Latin_Extended-A
+% U+0180..U+024F = https://en.wikipedia.org/wiki/Latin_Extended-B
+% 
+% Many of our renditions are less than wonderful, and all the missing
+% characters are available somewhere.  Loading the necessary fonts
+% awaits user request.  We can't truly support Unicode without
+% reimplementing everything that's been done in LaTeX for many years,
+% plus probably using luatex or xetex, and who knows what else.
+% We won't be doing that here in this simple file.  But we can try to at
+% least make most of the characters not bomb out.
+%
+\def\unicodechardefs{%
+  \DeclareUnicodeCharacter{00A0}{\tie}%
+  \DeclareUnicodeCharacter{00A1}{\exclamdown}%
+  \DeclareUnicodeCharacter{00A2}{{\tcfont \char162}}% 0242=cent
+  \DeclareUnicodeCharacter{00A3}{\pounds{}}%
+  \DeclareUnicodeCharacter{00A4}{{\tcfont \char164}}% 0244=currency
+  \DeclareUnicodeCharacter{00A5}{{\tcfont \char165}}% 0245=yen
+  \DeclareUnicodeCharacter{00A6}{{\tcfont \char166}}% 0246=brokenbar
+  \DeclareUnicodeCharacter{00A7}{\S}%
+  \DeclareUnicodeCharacter{00A8}{\"{ }}%
+  \DeclareUnicodeCharacter{00A9}{\copyright{}}%
+  \DeclareUnicodeCharacter{00AA}{\ordf}%
+  \DeclareUnicodeCharacter{00AB}{\guillemetleft{}}%
+  \DeclareUnicodeCharacter{00AC}{\ensuremath\lnot}%
+  \DeclareUnicodeCharacter{00AD}{\-}%
+  \DeclareUnicodeCharacter{00AE}{\registeredsymbol{}}%
+  \DeclareUnicodeCharacter{00AF}{\={ }}%
+  %
+  \DeclareUnicodeCharacter{00B0}{\ringaccent{ }}%
+  \DeclareUnicodeCharacter{00B1}{\ensuremath\pm}%
+  \DeclareUnicodeCharacter{00B2}{$^2$}%
+  \DeclareUnicodeCharacter{00B3}{$^3$}%
+  \DeclareUnicodeCharacter{00B4}{\'{ }}%
+  \DeclareUnicodeCharacter{00B5}{$\mu$}%
+  \DeclareUnicodeCharacter{00B6}{\P}%
+  \DeclareUnicodeCharacter{00B7}{\ensuremath\cdot}%
+  \DeclareUnicodeCharacter{00B8}{\cedilla{ }}%
+  \DeclareUnicodeCharacter{00B9}{$^1$}%
+  \DeclareUnicodeCharacter{00BA}{\ordm}%
+  \DeclareUnicodeCharacter{00BB}{\guillemetright{}}%
+  \DeclareUnicodeCharacter{00BC}{$1\over4$}%
+  \DeclareUnicodeCharacter{00BD}{$1\over2$}%
+  \DeclareUnicodeCharacter{00BE}{$3\over4$}%
+  \DeclareUnicodeCharacter{00BF}{\questiondown}%
+  %
+  \DeclareUnicodeCharacter{00C0}{\`A}%
+  \DeclareUnicodeCharacter{00C1}{\'A}%
+  \DeclareUnicodeCharacter{00C2}{\^A}%
+  \DeclareUnicodeCharacter{00C3}{\~A}%
+  \DeclareUnicodeCharacter{00C4}{\"A}%
+  \DeclareUnicodeCharacter{00C5}{\AA}%
+  \DeclareUnicodeCharacter{00C6}{\AE}%
+  \DeclareUnicodeCharacter{00C7}{\cedilla{C}}%
+  \DeclareUnicodeCharacter{00C8}{\`E}%
+  \DeclareUnicodeCharacter{00C9}{\'E}%
+  \DeclareUnicodeCharacter{00CA}{\^E}%
+  \DeclareUnicodeCharacter{00CB}{\"E}%
+  \DeclareUnicodeCharacter{00CC}{\`I}%
+  \DeclareUnicodeCharacter{00CD}{\'I}%
+  \DeclareUnicodeCharacter{00CE}{\^I}%
+  \DeclareUnicodeCharacter{00CF}{\"I}%
+  %
+  \DeclareUnicodeCharacter{00D0}{\DH}%
+  \DeclareUnicodeCharacter{00D1}{\~N}%
+  \DeclareUnicodeCharacter{00D2}{\`O}%
+  \DeclareUnicodeCharacter{00D3}{\'O}%
+  \DeclareUnicodeCharacter{00D4}{\^O}%
+  \DeclareUnicodeCharacter{00D5}{\~O}%
+  \DeclareUnicodeCharacter{00D6}{\"O}%
+  \DeclareUnicodeCharacter{00D7}{\ensuremath\times}%
+  \DeclareUnicodeCharacter{00D8}{\O}%
+  \DeclareUnicodeCharacter{00D9}{\`U}%
+  \DeclareUnicodeCharacter{00DA}{\'U}%
+  \DeclareUnicodeCharacter{00DB}{\^U}%
+  \DeclareUnicodeCharacter{00DC}{\"U}%
+  \DeclareUnicodeCharacter{00DD}{\'Y}%
+  \DeclareUnicodeCharacter{00DE}{\TH}%
+  \DeclareUnicodeCharacter{00DF}{\ss}%
+  %
+  \DeclareUnicodeCharacter{00E0}{\`a}%
+  \DeclareUnicodeCharacter{00E1}{\'a}%
+  \DeclareUnicodeCharacter{00E2}{\^a}%
+  \DeclareUnicodeCharacter{00E3}{\~a}%
+  \DeclareUnicodeCharacter{00E4}{\"a}%
+  \DeclareUnicodeCharacter{00E5}{\aa}%
+  \DeclareUnicodeCharacter{00E6}{\ae}%
+  \DeclareUnicodeCharacter{00E7}{\cedilla{c}}%
+  \DeclareUnicodeCharacter{00E8}{\`e}%
+  \DeclareUnicodeCharacter{00E9}{\'e}%
+  \DeclareUnicodeCharacter{00EA}{\^e}%
+  \DeclareUnicodeCharacter{00EB}{\"e}%
+  \DeclareUnicodeCharacter{00EC}{\`{\dotless{i}}}%
+  \DeclareUnicodeCharacter{00ED}{\'{\dotless{i}}}%
+  \DeclareUnicodeCharacter{00EE}{\^{\dotless{i}}}%
+  \DeclareUnicodeCharacter{00EF}{\"{\dotless{i}}}%
+  %
+  \DeclareUnicodeCharacter{00F0}{\dh}%
+  \DeclareUnicodeCharacter{00F1}{\~n}%
+  \DeclareUnicodeCharacter{00F2}{\`o}%
+  \DeclareUnicodeCharacter{00F3}{\'o}%
+  \DeclareUnicodeCharacter{00F4}{\^o}%
+  \DeclareUnicodeCharacter{00F5}{\~o}%
+  \DeclareUnicodeCharacter{00F6}{\"o}%
+  \DeclareUnicodeCharacter{00F7}{\ensuremath\div}%
+  \DeclareUnicodeCharacter{00F8}{\o}%
+  \DeclareUnicodeCharacter{00F9}{\`u}%
+  \DeclareUnicodeCharacter{00FA}{\'u}%
+  \DeclareUnicodeCharacter{00FB}{\^u}%
+  \DeclareUnicodeCharacter{00FC}{\"u}%
+  \DeclareUnicodeCharacter{00FD}{\'y}%
+  \DeclareUnicodeCharacter{00FE}{\th}%
+  \DeclareUnicodeCharacter{00FF}{\"y}%
+  %
+  \DeclareUnicodeCharacter{0100}{\=A}%
+  \DeclareUnicodeCharacter{0101}{\=a}%
+  \DeclareUnicodeCharacter{0102}{\u{A}}%
+  \DeclareUnicodeCharacter{0103}{\u{a}}%
+  \DeclareUnicodeCharacter{0104}{\ogonek{A}}%
+  \DeclareUnicodeCharacter{0105}{\ogonek{a}}%
+  \DeclareUnicodeCharacter{0106}{\'C}%
+  \DeclareUnicodeCharacter{0107}{\'c}%
+  \DeclareUnicodeCharacter{0108}{\^C}%
+  \DeclareUnicodeCharacter{0109}{\^c}%
+  \DeclareUnicodeCharacter{010A}{\dotaccent{C}}%
+  \DeclareUnicodeCharacter{010B}{\dotaccent{c}}%
+  \DeclareUnicodeCharacter{010C}{\v{C}}%
+  \DeclareUnicodeCharacter{010D}{\v{c}}%
+  \DeclareUnicodeCharacter{010E}{\v{D}}%
+  \DeclareUnicodeCharacter{010F}{d'}%
+  %
+  \DeclareUnicodeCharacter{0110}{\DH}%
+  \DeclareUnicodeCharacter{0111}{\dh}%
+  \DeclareUnicodeCharacter{0112}{\=E}%
+  \DeclareUnicodeCharacter{0113}{\=e}%
+  \DeclareUnicodeCharacter{0114}{\u{E}}%
+  \DeclareUnicodeCharacter{0115}{\u{e}}%
+  \DeclareUnicodeCharacter{0116}{\dotaccent{E}}%
+  \DeclareUnicodeCharacter{0117}{\dotaccent{e}}%
+  \DeclareUnicodeCharacter{0118}{\ogonek{E}}%
+  \DeclareUnicodeCharacter{0119}{\ogonek{e}}%
+  \DeclareUnicodeCharacter{011A}{\v{E}}%
+  \DeclareUnicodeCharacter{011B}{\v{e}}%
+  \DeclareUnicodeCharacter{011C}{\^G}%
+  \DeclareUnicodeCharacter{011D}{\^g}%
+  \DeclareUnicodeCharacter{011E}{\u{G}}%
+  \DeclareUnicodeCharacter{011F}{\u{g}}%
+  %
+  \DeclareUnicodeCharacter{0120}{\dotaccent{G}}%
+  \DeclareUnicodeCharacter{0121}{\dotaccent{g}}%
+  \DeclareUnicodeCharacter{0122}{\cedilla{G}}%
+  \DeclareUnicodeCharacter{0123}{\cedilla{g}}%
+  \DeclareUnicodeCharacter{0124}{\^H}%
+  \DeclareUnicodeCharacter{0125}{\^h}%
+  \DeclareUnicodeCharacter{0126}{\missingcharmsg{H WITH STROKE}}%
+  \DeclareUnicodeCharacter{0127}{\missingcharmsg{h WITH STROKE}}%
+  \DeclareUnicodeCharacter{0128}{\~I}%
+  \DeclareUnicodeCharacter{0129}{\~{\dotless{i}}}%
+  \DeclareUnicodeCharacter{012A}{\=I}%
+  \DeclareUnicodeCharacter{012B}{\={\dotless{i}}}%
+  \DeclareUnicodeCharacter{012C}{\u{I}}%
+  \DeclareUnicodeCharacter{012D}{\u{\dotless{i}}}%
+  \DeclareUnicodeCharacter{012E}{\ogonek{I}}%
+  \DeclareUnicodeCharacter{012F}{\ogonek{i}}%
+  %
+  \DeclareUnicodeCharacter{0130}{\dotaccent{I}}%
+  \DeclareUnicodeCharacter{0131}{\dotless{i}}%
+  \DeclareUnicodeCharacter{0132}{IJ}%
+  \DeclareUnicodeCharacter{0133}{ij}%
+  \DeclareUnicodeCharacter{0134}{\^J}%
+  \DeclareUnicodeCharacter{0135}{\^{\dotless{j}}}%
+  \DeclareUnicodeCharacter{0136}{\cedilla{K}}%
+  \DeclareUnicodeCharacter{0137}{\cedilla{k}}%
+  \DeclareUnicodeCharacter{0138}{\ensuremath\kappa}%
+  \DeclareUnicodeCharacter{0139}{\'L}%
+  \DeclareUnicodeCharacter{013A}{\'l}%
+  \DeclareUnicodeCharacter{013B}{\cedilla{L}}%
+  \DeclareUnicodeCharacter{013C}{\cedilla{l}}%
+  \DeclareUnicodeCharacter{013D}{L'}% should kern
+  \DeclareUnicodeCharacter{013E}{l'}% should kern
+  \DeclareUnicodeCharacter{013F}{L\U{00B7}}%
+  %
+  \DeclareUnicodeCharacter{0140}{l\U{00B7}}%
+  \DeclareUnicodeCharacter{0141}{\L}%
+  \DeclareUnicodeCharacter{0142}{\l}%
+  \DeclareUnicodeCharacter{0143}{\'N}%
+  \DeclareUnicodeCharacter{0144}{\'n}%
+  \DeclareUnicodeCharacter{0145}{\cedilla{N}}%
+  \DeclareUnicodeCharacter{0146}{\cedilla{n}}%
+  \DeclareUnicodeCharacter{0147}{\v{N}}%
+  \DeclareUnicodeCharacter{0148}{\v{n}}%
+  \DeclareUnicodeCharacter{0149}{'n}%
+  \DeclareUnicodeCharacter{014A}{\missingcharmsg{ENG}}%
+  \DeclareUnicodeCharacter{014B}{\missingcharmsg{eng}}%
+  \DeclareUnicodeCharacter{014C}{\=O}%
+  \DeclareUnicodeCharacter{014D}{\=o}%
+  \DeclareUnicodeCharacter{014E}{\u{O}}%
+  \DeclareUnicodeCharacter{014F}{\u{o}}%
+  %
+  \DeclareUnicodeCharacter{0150}{\H{O}}%
+  \DeclareUnicodeCharacter{0151}{\H{o}}%
+  \DeclareUnicodeCharacter{0152}{\OE}%
+  \DeclareUnicodeCharacter{0153}{\oe}%
+  \DeclareUnicodeCharacter{0154}{\'R}%
+  \DeclareUnicodeCharacter{0155}{\'r}%
+  \DeclareUnicodeCharacter{0156}{\cedilla{R}}%
+  \DeclareUnicodeCharacter{0157}{\cedilla{r}}%
+  \DeclareUnicodeCharacter{0158}{\v{R}}%
+  \DeclareUnicodeCharacter{0159}{\v{r}}%
+  \DeclareUnicodeCharacter{015A}{\'S}%
+  \DeclareUnicodeCharacter{015B}{\'s}%
+  \DeclareUnicodeCharacter{015C}{\^S}%
+  \DeclareUnicodeCharacter{015D}{\^s}%
+  \DeclareUnicodeCharacter{015E}{\cedilla{S}}%
+  \DeclareUnicodeCharacter{015F}{\cedilla{s}}%
+  %
+  \DeclareUnicodeCharacter{0160}{\v{S}}%
+  \DeclareUnicodeCharacter{0161}{\v{s}}%
+  \DeclareUnicodeCharacter{0162}{\cedilla{T}}%
+  \DeclareUnicodeCharacter{0163}{\cedilla{t}}%
+  \DeclareUnicodeCharacter{0164}{\v{T}}%
+  \DeclareUnicodeCharacter{0165}{\v{t}}%
+  \DeclareUnicodeCharacter{0166}{\missingcharmsg{H WITH STROKE}}%
+  \DeclareUnicodeCharacter{0167}{\missingcharmsg{h WITH STROKE}}%
+  \DeclareUnicodeCharacter{0168}{\~U}%
+  \DeclareUnicodeCharacter{0169}{\~u}%
+  \DeclareUnicodeCharacter{016A}{\=U}%
+  \DeclareUnicodeCharacter{016B}{\=u}%
+  \DeclareUnicodeCharacter{016C}{\u{U}}%
+  \DeclareUnicodeCharacter{016D}{\u{u}}%
+  \DeclareUnicodeCharacter{016E}{\ringaccent{U}}%
+  \DeclareUnicodeCharacter{016F}{\ringaccent{u}}%
+  %
+  \DeclareUnicodeCharacter{0170}{\H{U}}%
+  \DeclareUnicodeCharacter{0171}{\H{u}}%
+  \DeclareUnicodeCharacter{0172}{\ogonek{U}}%
+  \DeclareUnicodeCharacter{0173}{\ogonek{u}}%
+  \DeclareUnicodeCharacter{0174}{\^W}%
+  \DeclareUnicodeCharacter{0175}{\^w}%
+  \DeclareUnicodeCharacter{0176}{\^Y}%
+  \DeclareUnicodeCharacter{0177}{\^y}%
+  \DeclareUnicodeCharacter{0178}{\"Y}%
+  \DeclareUnicodeCharacter{0179}{\'Z}%
+  \DeclareUnicodeCharacter{017A}{\'z}%
+  \DeclareUnicodeCharacter{017B}{\dotaccent{Z}}%
+  \DeclareUnicodeCharacter{017C}{\dotaccent{z}}%
+  \DeclareUnicodeCharacter{017D}{\v{Z}}%
+  \DeclareUnicodeCharacter{017E}{\v{z}}%
+  \DeclareUnicodeCharacter{017F}{\missingcharmsg{LONG S}}%
+  %
+  \DeclareUnicodeCharacter{01C4}{D\v{Z}}%
+  \DeclareUnicodeCharacter{01C5}{D\v{z}}%
+  \DeclareUnicodeCharacter{01C6}{d\v{z}}%
+  \DeclareUnicodeCharacter{01C7}{LJ}%
+  \DeclareUnicodeCharacter{01C8}{Lj}%
+  \DeclareUnicodeCharacter{01C9}{lj}%
+  \DeclareUnicodeCharacter{01CA}{NJ}%
+  \DeclareUnicodeCharacter{01CB}{Nj}%
+  \DeclareUnicodeCharacter{01CC}{nj}%
+  \DeclareUnicodeCharacter{01CD}{\v{A}}%
+  \DeclareUnicodeCharacter{01CE}{\v{a}}%
+  \DeclareUnicodeCharacter{01CF}{\v{I}}%
+  %
+  \DeclareUnicodeCharacter{01D0}{\v{\dotless{i}}}%
+  \DeclareUnicodeCharacter{01D1}{\v{O}}%
+  \DeclareUnicodeCharacter{01D2}{\v{o}}%
+  \DeclareUnicodeCharacter{01D3}{\v{U}}%
+  \DeclareUnicodeCharacter{01D4}{\v{u}}%
+  %
+  \DeclareUnicodeCharacter{01E2}{\={\AE}}%
+  \DeclareUnicodeCharacter{01E3}{\={\ae}}%
+  \DeclareUnicodeCharacter{01E6}{\v{G}}%
+  \DeclareUnicodeCharacter{01E7}{\v{g}}%
+  \DeclareUnicodeCharacter{01E8}{\v{K}}%
+  \DeclareUnicodeCharacter{01E9}{\v{k}}%
+  %
+  \DeclareUnicodeCharacter{01F0}{\v{\dotless{j}}}%
+  \DeclareUnicodeCharacter{01F1}{DZ}%
+  \DeclareUnicodeCharacter{01F2}{Dz}%
+  \DeclareUnicodeCharacter{01F3}{dz}%
+  \DeclareUnicodeCharacter{01F4}{\'G}%
+  \DeclareUnicodeCharacter{01F5}{\'g}%
+  \DeclareUnicodeCharacter{01F8}{\`N}%
+  \DeclareUnicodeCharacter{01F9}{\`n}%
+  \DeclareUnicodeCharacter{01FC}{\'{\AE}}%
+  \DeclareUnicodeCharacter{01FD}{\'{\ae}}%
+  \DeclareUnicodeCharacter{01FE}{\'{\O}}%
+  \DeclareUnicodeCharacter{01FF}{\'{\o}}%
+  %
+  \DeclareUnicodeCharacter{021E}{\v{H}}%
+  \DeclareUnicodeCharacter{021F}{\v{h}}%
+  %
+  \DeclareUnicodeCharacter{0226}{\dotaccent{A}}%
+  \DeclareUnicodeCharacter{0227}{\dotaccent{a}}%
+  \DeclareUnicodeCharacter{0228}{\cedilla{E}}%
+  \DeclareUnicodeCharacter{0229}{\cedilla{e}}%
+  \DeclareUnicodeCharacter{022E}{\dotaccent{O}}%
+  \DeclareUnicodeCharacter{022F}{\dotaccent{o}}%
+  %
+  \DeclareUnicodeCharacter{0232}{\=Y}%
+  \DeclareUnicodeCharacter{0233}{\=y}%
+  \DeclareUnicodeCharacter{0237}{\dotless{j}}%
+  %
+  \DeclareUnicodeCharacter{02DB}{\ogonek{ }}%
+  %
+  % Greek letters upper case
+  \DeclareUnicodeCharacter{0391}{{\it A}}%
+  \DeclareUnicodeCharacter{0392}{{\it B}}%
+  \DeclareUnicodeCharacter{0393}{\ensuremath{\mit\Gamma}}%
+  \DeclareUnicodeCharacter{0394}{\ensuremath{\mit\Delta}}%
+  \DeclareUnicodeCharacter{0395}{{\it E}}%
+  \DeclareUnicodeCharacter{0396}{{\it Z}}%
+  \DeclareUnicodeCharacter{0397}{{\it H}}%
+  \DeclareUnicodeCharacter{0398}{\ensuremath{\mit\Theta}}%
+  \DeclareUnicodeCharacter{0399}{{\it I}}%
+  \DeclareUnicodeCharacter{039A}{{\it K}}%
+  \DeclareUnicodeCharacter{039B}{\ensuremath{\mit\Lambda}}%
+  \DeclareUnicodeCharacter{039C}{{\it M}}%
+  \DeclareUnicodeCharacter{039D}{{\it N}}%
+  \DeclareUnicodeCharacter{039E}{\ensuremath{\mit\Xi}}%
+  \DeclareUnicodeCharacter{039F}{{\it O}}%
+  \DeclareUnicodeCharacter{03A0}{\ensuremath{\mit\Pi}}%
+  \DeclareUnicodeCharacter{03A1}{{\it P}}%
+  %\DeclareUnicodeCharacter{03A2}{} % none - corresponds to final sigma
+  \DeclareUnicodeCharacter{03A3}{\ensuremath{\mit\Sigma}}%
+  \DeclareUnicodeCharacter{03A4}{{\it T}}%
+  \DeclareUnicodeCharacter{03A5}{\ensuremath{\mit\Upsilon}}%
+  \DeclareUnicodeCharacter{03A6}{\ensuremath{\mit\Phi}}%
+  \DeclareUnicodeCharacter{03A7}{{\it X}}%
+  \DeclareUnicodeCharacter{03A8}{\ensuremath{\mit\Psi}}%
+  \DeclareUnicodeCharacter{03A9}{\ensuremath{\mit\Omega}}%
+  %
+  % Vowels with accents
+  \DeclareUnicodeCharacter{0390}{\ensuremath{\ddot{\acute\iota}}}%
+  \DeclareUnicodeCharacter{03AC}{\ensuremath{\acute\alpha}}%
+  \DeclareUnicodeCharacter{03AD}{\ensuremath{\acute\epsilon}}%
+  \DeclareUnicodeCharacter{03AE}{\ensuremath{\acute\eta}}%
+  \DeclareUnicodeCharacter{03AF}{\ensuremath{\acute\iota}}%
+  \DeclareUnicodeCharacter{03B0}{\ensuremath{\acute{\ddot\upsilon}}}%
+  %
+  % Standalone accent
+  \DeclareUnicodeCharacter{0384}{\ensuremath{\acute{\ }}}%
+  %
+  % Greek letters lower case
+  \DeclareUnicodeCharacter{03B1}{\ensuremath\alpha}%
+  \DeclareUnicodeCharacter{03B2}{\ensuremath\beta}%
+  \DeclareUnicodeCharacter{03B3}{\ensuremath\gamma}%
+  \DeclareUnicodeCharacter{03B4}{\ensuremath\delta}%
+  \DeclareUnicodeCharacter{03B5}{\ensuremath\epsilon}%
+  \DeclareUnicodeCharacter{03B6}{\ensuremath\zeta}%
+  \DeclareUnicodeCharacter{03B7}{\ensuremath\eta}%
+  \DeclareUnicodeCharacter{03B8}{\ensuremath\theta}%
+  \DeclareUnicodeCharacter{03B9}{\ensuremath\iota}%
+  \DeclareUnicodeCharacter{03BA}{\ensuremath\kappa}%
+  \DeclareUnicodeCharacter{03BB}{\ensuremath\lambda}%
+  \DeclareUnicodeCharacter{03BC}{\ensuremath\mu}%
+  \DeclareUnicodeCharacter{03BD}{\ensuremath\nu}%
+  \DeclareUnicodeCharacter{03BE}{\ensuremath\xi}%
+  \DeclareUnicodeCharacter{03BF}{{\it o}}% omicron
+  \DeclareUnicodeCharacter{03C0}{\ensuremath\pi}%
+  \DeclareUnicodeCharacter{03C1}{\ensuremath\rho}%
+  \DeclareUnicodeCharacter{03C2}{\ensuremath\varsigma}%
+  \DeclareUnicodeCharacter{03C3}{\ensuremath\sigma}%
+  \DeclareUnicodeCharacter{03C4}{\ensuremath\tau}%
+  \DeclareUnicodeCharacter{03C5}{\ensuremath\upsilon}%
+  \DeclareUnicodeCharacter{03C6}{\ensuremath\phi}%
+  \DeclareUnicodeCharacter{03C7}{\ensuremath\chi}%
+  \DeclareUnicodeCharacter{03C8}{\ensuremath\psi}%
+  \DeclareUnicodeCharacter{03C9}{\ensuremath\omega}%
+  %
+  % More Greek vowels with accents
+  \DeclareUnicodeCharacter{03CA}{\ensuremath{\ddot\iota}}%
+  \DeclareUnicodeCharacter{03CB}{\ensuremath{\ddot\upsilon}}%
+  \DeclareUnicodeCharacter{03CC}{\ensuremath{\acute o}}%
+  \DeclareUnicodeCharacter{03CD}{\ensuremath{\acute\upsilon}}%
+  \DeclareUnicodeCharacter{03CE}{\ensuremath{\acute\omega}}%
+  %
+  % Variant Greek letters
+  \DeclareUnicodeCharacter{03D1}{\ensuremath\vartheta}%
+  \DeclareUnicodeCharacter{03D6}{\ensuremath\varpi}%
+  \DeclareUnicodeCharacter{03F1}{\ensuremath\varrho}%
+  %
+  \DeclareUnicodeCharacter{1E02}{\dotaccent{B}}%
+  \DeclareUnicodeCharacter{1E03}{\dotaccent{b}}%
+  \DeclareUnicodeCharacter{1E04}{\udotaccent{B}}%
+  \DeclareUnicodeCharacter{1E05}{\udotaccent{b}}%
+  \DeclareUnicodeCharacter{1E06}{\ubaraccent{B}}%
+  \DeclareUnicodeCharacter{1E07}{\ubaraccent{b}}%
+  \DeclareUnicodeCharacter{1E0A}{\dotaccent{D}}%
+  \DeclareUnicodeCharacter{1E0B}{\dotaccent{d}}%
+  \DeclareUnicodeCharacter{1E0C}{\udotaccent{D}}%
+  \DeclareUnicodeCharacter{1E0D}{\udotaccent{d}}%
+  \DeclareUnicodeCharacter{1E0E}{\ubaraccent{D}}%
+  \DeclareUnicodeCharacter{1E0F}{\ubaraccent{d}}%
+  %
+  \DeclareUnicodeCharacter{1E1E}{\dotaccent{F}}%
+  \DeclareUnicodeCharacter{1E1F}{\dotaccent{f}}%
+  %
+  \DeclareUnicodeCharacter{1E20}{\=G}%
+  \DeclareUnicodeCharacter{1E21}{\=g}%
+  \DeclareUnicodeCharacter{1E22}{\dotaccent{H}}%
+  \DeclareUnicodeCharacter{1E23}{\dotaccent{h}}%
+  \DeclareUnicodeCharacter{1E24}{\udotaccent{H}}%
+  \DeclareUnicodeCharacter{1E25}{\udotaccent{h}}%
+  \DeclareUnicodeCharacter{1E26}{\"H}%
+  \DeclareUnicodeCharacter{1E27}{\"h}%
+  %
+  \DeclareUnicodeCharacter{1E30}{\'K}%
+  \DeclareUnicodeCharacter{1E31}{\'k}%
+  \DeclareUnicodeCharacter{1E32}{\udotaccent{K}}%
+  \DeclareUnicodeCharacter{1E33}{\udotaccent{k}}%
+  \DeclareUnicodeCharacter{1E34}{\ubaraccent{K}}%
+  \DeclareUnicodeCharacter{1E35}{\ubaraccent{k}}%
+  \DeclareUnicodeCharacter{1E36}{\udotaccent{L}}%
+  \DeclareUnicodeCharacter{1E37}{\udotaccent{l}}%
+  \DeclareUnicodeCharacter{1E3A}{\ubaraccent{L}}%
+  \DeclareUnicodeCharacter{1E3B}{\ubaraccent{l}}%
+  \DeclareUnicodeCharacter{1E3E}{\'M}%
+  \DeclareUnicodeCharacter{1E3F}{\'m}%
+  %
+  \DeclareUnicodeCharacter{1E40}{\dotaccent{M}}%
+  \DeclareUnicodeCharacter{1E41}{\dotaccent{m}}%
+  \DeclareUnicodeCharacter{1E42}{\udotaccent{M}}%
+  \DeclareUnicodeCharacter{1E43}{\udotaccent{m}}%
+  \DeclareUnicodeCharacter{1E44}{\dotaccent{N}}%
+  \DeclareUnicodeCharacter{1E45}{\dotaccent{n}}%
+  \DeclareUnicodeCharacter{1E46}{\udotaccent{N}}%
+  \DeclareUnicodeCharacter{1E47}{\udotaccent{n}}%
+  \DeclareUnicodeCharacter{1E48}{\ubaraccent{N}}%
+  \DeclareUnicodeCharacter{1E49}{\ubaraccent{n}}%
+  %
+  \DeclareUnicodeCharacter{1E54}{\'P}%
+  \DeclareUnicodeCharacter{1E55}{\'p}%
+  \DeclareUnicodeCharacter{1E56}{\dotaccent{P}}%
+  \DeclareUnicodeCharacter{1E57}{\dotaccent{p}}%
+  \DeclareUnicodeCharacter{1E58}{\dotaccent{R}}%
+  \DeclareUnicodeCharacter{1E59}{\dotaccent{r}}%
+  \DeclareUnicodeCharacter{1E5A}{\udotaccent{R}}%
+  \DeclareUnicodeCharacter{1E5B}{\udotaccent{r}}%
+  \DeclareUnicodeCharacter{1E5E}{\ubaraccent{R}}%
+  \DeclareUnicodeCharacter{1E5F}{\ubaraccent{r}}%
+  %
+  \DeclareUnicodeCharacter{1E60}{\dotaccent{S}}%
+  \DeclareUnicodeCharacter{1E61}{\dotaccent{s}}%
+  \DeclareUnicodeCharacter{1E62}{\udotaccent{S}}%
+  \DeclareUnicodeCharacter{1E63}{\udotaccent{s}}%
+  \DeclareUnicodeCharacter{1E6A}{\dotaccent{T}}%
+  \DeclareUnicodeCharacter{1E6B}{\dotaccent{t}}%
+  \DeclareUnicodeCharacter{1E6C}{\udotaccent{T}}%
+  \DeclareUnicodeCharacter{1E6D}{\udotaccent{t}}%
+  \DeclareUnicodeCharacter{1E6E}{\ubaraccent{T}}%
+  \DeclareUnicodeCharacter{1E6F}{\ubaraccent{t}}%
+  %
+  \DeclareUnicodeCharacter{1E7C}{\~V}%
+  \DeclareUnicodeCharacter{1E7D}{\~v}%
+  \DeclareUnicodeCharacter{1E7E}{\udotaccent{V}}%
+  \DeclareUnicodeCharacter{1E7F}{\udotaccent{v}}%
+  %
+  \DeclareUnicodeCharacter{1E80}{\`W}%
+  \DeclareUnicodeCharacter{1E81}{\`w}%
+  \DeclareUnicodeCharacter{1E82}{\'W}%
+  \DeclareUnicodeCharacter{1E83}{\'w}%
+  \DeclareUnicodeCharacter{1E84}{\"W}%
+  \DeclareUnicodeCharacter{1E85}{\"w}%
+  \DeclareUnicodeCharacter{1E86}{\dotaccent{W}}%
+  \DeclareUnicodeCharacter{1E87}{\dotaccent{w}}%
+  \DeclareUnicodeCharacter{1E88}{\udotaccent{W}}%
+  \DeclareUnicodeCharacter{1E89}{\udotaccent{w}}%
+  \DeclareUnicodeCharacter{1E8A}{\dotaccent{X}}%
+  \DeclareUnicodeCharacter{1E8B}{\dotaccent{x}}%
+  \DeclareUnicodeCharacter{1E8C}{\"X}%
+  \DeclareUnicodeCharacter{1E8D}{\"x}%
+  \DeclareUnicodeCharacter{1E8E}{\dotaccent{Y}}%
+  \DeclareUnicodeCharacter{1E8F}{\dotaccent{y}}%
+  %
+  \DeclareUnicodeCharacter{1E90}{\^Z}%
+  \DeclareUnicodeCharacter{1E91}{\^z}%
+  \DeclareUnicodeCharacter{1E92}{\udotaccent{Z}}%
+  \DeclareUnicodeCharacter{1E93}{\udotaccent{z}}%
+  \DeclareUnicodeCharacter{1E94}{\ubaraccent{Z}}%
+  \DeclareUnicodeCharacter{1E95}{\ubaraccent{z}}%
+  \DeclareUnicodeCharacter{1E96}{\ubaraccent{h}}%
+  \DeclareUnicodeCharacter{1E97}{\"t}%
+  \DeclareUnicodeCharacter{1E98}{\ringaccent{w}}%
+  \DeclareUnicodeCharacter{1E99}{\ringaccent{y}}%
+  %
+  \DeclareUnicodeCharacter{1EA0}{\udotaccent{A}}%
+  \DeclareUnicodeCharacter{1EA1}{\udotaccent{a}}%
+  %
+  \DeclareUnicodeCharacter{1EB8}{\udotaccent{E}}%
+  \DeclareUnicodeCharacter{1EB9}{\udotaccent{e}}%
+  \DeclareUnicodeCharacter{1EBC}{\~E}%
+  \DeclareUnicodeCharacter{1EBD}{\~e}%
+  %
+  \DeclareUnicodeCharacter{1ECA}{\udotaccent{I}}%
+  \DeclareUnicodeCharacter{1ECB}{\udotaccent{i}}%
+  \DeclareUnicodeCharacter{1ECC}{\udotaccent{O}}%
+  \DeclareUnicodeCharacter{1ECD}{\udotaccent{o}}%
+  %
+  \DeclareUnicodeCharacter{1EE4}{\udotaccent{U}}%
+  \DeclareUnicodeCharacter{1EE5}{\udotaccent{u}}%
+  %
+  \DeclareUnicodeCharacter{1EF2}{\`Y}%
+  \DeclareUnicodeCharacter{1EF3}{\`y}%
+  \DeclareUnicodeCharacter{1EF4}{\udotaccent{Y}}%
+  %
+  \DeclareUnicodeCharacter{1EF8}{\~Y}%
+  \DeclareUnicodeCharacter{1EF9}{\~y}%
+  %
+  % Punctuation
+  \DeclareUnicodeCharacter{2013}{--}%
+  \DeclareUnicodeCharacter{2014}{---}%
+  \DeclareUnicodeCharacter{2018}{\quoteleft{}}%
+  \DeclareUnicodeCharacter{2019}{\quoteright{}}%
+  \DeclareUnicodeCharacter{201A}{\quotesinglbase{}}%
+  \DeclareUnicodeCharacter{201C}{\quotedblleft{}}%
+  \DeclareUnicodeCharacter{201D}{\quotedblright{}}%
+  \DeclareUnicodeCharacter{201E}{\quotedblbase{}}%
+  \DeclareUnicodeCharacter{2020}{\ensuremath\dagger}%
+  \DeclareUnicodeCharacter{2021}{\ensuremath\ddagger}%
+  \DeclareUnicodeCharacter{2022}{\bullet{}}%
+  \DeclareUnicodeCharacter{202F}{\thinspace}%
+  \DeclareUnicodeCharacter{2026}{\dots{}}%
+  \DeclareUnicodeCharacter{2039}{\guilsinglleft{}}%
+  \DeclareUnicodeCharacter{203A}{\guilsinglright{}}%
+  %
+  \DeclareUnicodeCharacter{20AC}{\euro{}}%
+  %
+  \DeclareUnicodeCharacter{2192}{\expansion{}}%
+  \DeclareUnicodeCharacter{21D2}{\result{}}%
+  %
+  % Mathematical symbols
+  \DeclareUnicodeCharacter{2200}{\ensuremath\forall}%
+  \DeclareUnicodeCharacter{2203}{\ensuremath\exists}%
+  \DeclareUnicodeCharacter{2208}{\ensuremath\in}%
+  \DeclareUnicodeCharacter{2212}{\minus{}}%
+  \DeclareUnicodeCharacter{2217}{\ast}%
+  \DeclareUnicodeCharacter{221E}{\ensuremath\infty}%
+  \DeclareUnicodeCharacter{2225}{\ensuremath\parallel}%
+  \DeclareUnicodeCharacter{2227}{\ensuremath\wedge}%
+  \DeclareUnicodeCharacter{2229}{\ensuremath\cap}%
+  \DeclareUnicodeCharacter{2261}{\equiv{}}%
+  \DeclareUnicodeCharacter{2264}{\ensuremath\leq}%
+  \DeclareUnicodeCharacter{2265}{\ensuremath\geq}%
+  \DeclareUnicodeCharacter{2282}{\ensuremath\subset}%
+  \DeclareUnicodeCharacter{2287}{\ensuremath\supseteq}%
+  %
+  \DeclareUnicodeCharacter{2016}{\ensuremath\Vert}%
+  \DeclareUnicodeCharacter{2032}{\ensuremath\prime}%
+  \DeclareUnicodeCharacter{210F}{\ensuremath\hbar}%
+  \DeclareUnicodeCharacter{2111}{\ensuremath\Im}%
+  \DeclareUnicodeCharacter{2113}{\ensuremath\ell}%
+  \DeclareUnicodeCharacter{2118}{\ensuremath\wp}%
+  \DeclareUnicodeCharacter{211C}{\ensuremath\Re}%
+  \DeclareUnicodeCharacter{2127}{\ensuremath\mho}%
+  \DeclareUnicodeCharacter{2135}{\ensuremath\aleph}%
+  \DeclareUnicodeCharacter{2190}{\ensuremath\leftarrow}%
+  \DeclareUnicodeCharacter{2191}{\ensuremath\uparrow}%
+  \DeclareUnicodeCharacter{2193}{\ensuremath\downarrow}%
+  \DeclareUnicodeCharacter{2194}{\ensuremath\leftrightarrow}%
+  \DeclareUnicodeCharacter{2195}{\ensuremath\updownarrow}%
+  \DeclareUnicodeCharacter{2196}{\ensuremath\nwarrow}%
+  \DeclareUnicodeCharacter{2197}{\ensuremath\nearrow}%
+  \DeclareUnicodeCharacter{2198}{\ensuremath\searrow}%
+  \DeclareUnicodeCharacter{2199}{\ensuremath\swarrow}%
+  \DeclareUnicodeCharacter{21A6}{\ensuremath\mapsto}%
+  \DeclareUnicodeCharacter{21A9}{\ensuremath\hookleftarrow}%
+  \DeclareUnicodeCharacter{21AA}{\ensuremath\hookrightarrow}%
+  \DeclareUnicodeCharacter{21BC}{\ensuremath\leftharpoonup}%
+  \DeclareUnicodeCharacter{21BD}{\ensuremath\leftharpoondown}%
+  \DeclareUnicodeCharacter{21BE}{\ensuremath\upharpoonright}%
+  \DeclareUnicodeCharacter{21C0}{\ensuremath\rightharpoonup}%
+  \DeclareUnicodeCharacter{21C1}{\ensuremath\rightharpoondown}%
+  \DeclareUnicodeCharacter{21CC}{\ensuremath\rightleftharpoons}%
+  \DeclareUnicodeCharacter{21D0}{\ensuremath\Leftarrow}%
+  \DeclareUnicodeCharacter{21D1}{\ensuremath\Uparrow}%
+  \DeclareUnicodeCharacter{21D3}{\ensuremath\Downarrow}%
+  \DeclareUnicodeCharacter{21D4}{\ensuremath\Leftrightarrow}%
+  \DeclareUnicodeCharacter{21D5}{\ensuremath\Updownarrow}%
+  \DeclareUnicodeCharacter{21DD}{\ensuremath\leadsto}%
+  \DeclareUnicodeCharacter{2201}{\ensuremath\complement}%
+  \DeclareUnicodeCharacter{2202}{\ensuremath\partial}%
+  \DeclareUnicodeCharacter{2205}{\ensuremath\emptyset}%
+  \DeclareUnicodeCharacter{2207}{\ensuremath\nabla}%
+  \DeclareUnicodeCharacter{2209}{\ensuremath\notin}%
+  \DeclareUnicodeCharacter{220B}{\ensuremath\owns}%
+  \DeclareUnicodeCharacter{220F}{\ensuremath\prod}%
+  \DeclareUnicodeCharacter{2210}{\ensuremath\coprod}%
+  \DeclareUnicodeCharacter{2211}{\ensuremath\sum}%
+  \DeclareUnicodeCharacter{2213}{\ensuremath\mp}%
+  \DeclareUnicodeCharacter{2218}{\ensuremath\circ}%
+  \DeclareUnicodeCharacter{221A}{\ensuremath\surd}%
+  \DeclareUnicodeCharacter{221D}{\ensuremath\propto}%
+  \DeclareUnicodeCharacter{2220}{\ensuremath\angle}%
+  \DeclareUnicodeCharacter{2223}{\ensuremath\mid}%
+  \DeclareUnicodeCharacter{2228}{\ensuremath\vee}%
+  \DeclareUnicodeCharacter{222A}{\ensuremath\cup}%
+  \DeclareUnicodeCharacter{222B}{\ensuremath\smallint}%
+  \DeclareUnicodeCharacter{222E}{\ensuremath\oint}%
+  \DeclareUnicodeCharacter{223C}{\ensuremath\sim}%
+  \DeclareUnicodeCharacter{2240}{\ensuremath\wr}%
+  \DeclareUnicodeCharacter{2243}{\ensuremath\simeq}%
+  \DeclareUnicodeCharacter{2245}{\ensuremath\cong}%
+  \DeclareUnicodeCharacter{2248}{\ensuremath\approx}%
+  \DeclareUnicodeCharacter{224D}{\ensuremath\asymp}%
+  \DeclareUnicodeCharacter{2250}{\ensuremath\doteq}%
+  \DeclareUnicodeCharacter{2260}{\ensuremath\neq}%
+  \DeclareUnicodeCharacter{226A}{\ensuremath\ll}%
+  \DeclareUnicodeCharacter{226B}{\ensuremath\gg}%
+  \DeclareUnicodeCharacter{227A}{\ensuremath\prec}%
+  \DeclareUnicodeCharacter{227B}{\ensuremath\succ}%
+  \DeclareUnicodeCharacter{2283}{\ensuremath\supset}%
+  \DeclareUnicodeCharacter{2286}{\ensuremath\subseteq}%
+  \DeclareUnicodeCharacter{228E}{\ensuremath\uplus}%
+  \DeclareUnicodeCharacter{228F}{\ensuremath\sqsubset}%
+  \DeclareUnicodeCharacter{2290}{\ensuremath\sqsupset}%
+  \DeclareUnicodeCharacter{2291}{\ensuremath\sqsubseteq}%
+  \DeclareUnicodeCharacter{2292}{\ensuremath\sqsupseteq}%
+  \DeclareUnicodeCharacter{2293}{\ensuremath\sqcap}%
+  \DeclareUnicodeCharacter{2294}{\ensuremath\sqcup}%
+  \DeclareUnicodeCharacter{2295}{\ensuremath\oplus}%
+  \DeclareUnicodeCharacter{2296}{\ensuremath\ominus}%
+  \DeclareUnicodeCharacter{2297}{\ensuremath\otimes}%
+  \DeclareUnicodeCharacter{2298}{\ensuremath\oslash}%
+  \DeclareUnicodeCharacter{2299}{\ensuremath\odot}%
+  \DeclareUnicodeCharacter{22A2}{\ensuremath\vdash}%
+  \DeclareUnicodeCharacter{22A3}{\ensuremath\dashv}%
+  \DeclareUnicodeCharacter{22A4}{\ensuremath\ptextop}%
+  \DeclareUnicodeCharacter{22A5}{\ensuremath\bot}%
+  \DeclareUnicodeCharacter{22A8}{\ensuremath\models}%
+  \DeclareUnicodeCharacter{22B4}{\ensuremath\unlhd}%
+  \DeclareUnicodeCharacter{22B5}{\ensuremath\unrhd}%
+  \DeclareUnicodeCharacter{22C0}{\ensuremath\bigwedge}%
+  \DeclareUnicodeCharacter{22C1}{\ensuremath\bigvee}%
+  \DeclareUnicodeCharacter{22C2}{\ensuremath\bigcap}%
+  \DeclareUnicodeCharacter{22C3}{\ensuremath\bigcup}%
+  \DeclareUnicodeCharacter{22C4}{\ensuremath\diamond}%
+  \DeclareUnicodeCharacter{22C5}{\ensuremath\cdot}%
+  \DeclareUnicodeCharacter{22C6}{\ensuremath\star}%
+  \DeclareUnicodeCharacter{22C8}{\ensuremath\bowtie}%
+  \DeclareUnicodeCharacter{2308}{\ensuremath\lceil}%
+  \DeclareUnicodeCharacter{2309}{\ensuremath\rceil}%
+  \DeclareUnicodeCharacter{230A}{\ensuremath\lfloor}%
+  \DeclareUnicodeCharacter{230B}{\ensuremath\rfloor}%
+  \DeclareUnicodeCharacter{2322}{\ensuremath\frown}%
+  \DeclareUnicodeCharacter{2323}{\ensuremath\smile}%
+  %
+  \DeclareUnicodeCharacter{25A1}{\ensuremath\Box}%
+  \DeclareUnicodeCharacter{25B3}{\ensuremath\triangle}%
+  \DeclareUnicodeCharacter{25B7}{\ensuremath\triangleright}%
+  \DeclareUnicodeCharacter{25BD}{\ensuremath\bigtriangledown}%
+  \DeclareUnicodeCharacter{25C1}{\ensuremath\triangleleft}%
+  \DeclareUnicodeCharacter{25C7}{\ensuremath\Diamond}%
+  \DeclareUnicodeCharacter{2660}{\ensuremath\spadesuit}%
+  \DeclareUnicodeCharacter{2661}{\ensuremath\heartsuit}%
+  \DeclareUnicodeCharacter{2662}{\ensuremath\diamondsuit}%
+  \DeclareUnicodeCharacter{2663}{\ensuremath\clubsuit}%
+  \DeclareUnicodeCharacter{266D}{\ensuremath\flat}%
+  \DeclareUnicodeCharacter{266E}{\ensuremath\natural}%
+  \DeclareUnicodeCharacter{266F}{\ensuremath\sharp}%
+  \DeclareUnicodeCharacter{26AA}{\ensuremath\bigcirc}%
+  \DeclareUnicodeCharacter{27B9}{\ensuremath\rangle}%
+  \DeclareUnicodeCharacter{27C2}{\ensuremath\perp}%
+  \DeclareUnicodeCharacter{27E8}{\ensuremath\langle}%
+  \DeclareUnicodeCharacter{27F5}{\ensuremath\longleftarrow}%
+  \DeclareUnicodeCharacter{27F6}{\ensuremath\longrightarrow}%
+  \DeclareUnicodeCharacter{27F7}{\ensuremath\longleftrightarrow}%
+  \DeclareUnicodeCharacter{27FC}{\ensuremath\longmapsto}%
+  \DeclareUnicodeCharacter{29F5}{\ensuremath\setminus}%
+  \DeclareUnicodeCharacter{2A00}{\ensuremath\bigodot}%
+  \DeclareUnicodeCharacter{2A01}{\ensuremath\bigoplus}%
+  \DeclareUnicodeCharacter{2A02}{\ensuremath\bigotimes}%
+  \DeclareUnicodeCharacter{2A04}{\ensuremath\biguplus}%
+  \DeclareUnicodeCharacter{2A06}{\ensuremath\bigsqcup}%
+  \DeclareUnicodeCharacter{2A1D}{\ensuremath\Join}%
+  \DeclareUnicodeCharacter{2A3F}{\ensuremath\amalg}%
+  \DeclareUnicodeCharacter{2AAF}{\ensuremath\preceq}%
+  \DeclareUnicodeCharacter{2AB0}{\ensuremath\succeq}%
+  %
+  \global\mathchardef\checkmark="1370% actually the square root sign
+  \DeclareUnicodeCharacter{2713}{\ensuremath\checkmark}%
+}% end of \unicodechardefs
+
+% UTF-8 byte sequence (pdfTeX) definitions (replacing and @U command)
+% It makes the setting that replace UTF-8 byte sequence.
 \def\utfeightchardefs{%
-  \DeclareUnicodeCharacter{00A0}{\tie}
-  \DeclareUnicodeCharacter{00A1}{\exclamdown}
-  \DeclareUnicodeCharacter{00A3}{\pounds}
-  \DeclareUnicodeCharacter{00A8}{\"{ }}
-  \DeclareUnicodeCharacter{00A9}{\copyright}
-  \DeclareUnicodeCharacter{00AA}{\ordf}
-  \DeclareUnicodeCharacter{00AB}{\guillemetleft}
-  \DeclareUnicodeCharacter{00AD}{\-}
-  \DeclareUnicodeCharacter{00AE}{\registeredsymbol}
-  \DeclareUnicodeCharacter{00AF}{\={ }}
-
-  \DeclareUnicodeCharacter{00B0}{\ringaccent{ }}
-  \DeclareUnicodeCharacter{00B4}{\'{ }}
-  \DeclareUnicodeCharacter{00B8}{\cedilla{ }}
-  \DeclareUnicodeCharacter{00BA}{\ordm}
-  \DeclareUnicodeCharacter{00BB}{\guillemetright}
-  \DeclareUnicodeCharacter{00BF}{\questiondown}
-
-  \DeclareUnicodeCharacter{00C0}{\`A}
-  \DeclareUnicodeCharacter{00C1}{\'A}
-  \DeclareUnicodeCharacter{00C2}{\^A}
-  \DeclareUnicodeCharacter{00C3}{\~A}
-  \DeclareUnicodeCharacter{00C4}{\"A}
-  \DeclareUnicodeCharacter{00C5}{\AA}
-  \DeclareUnicodeCharacter{00C6}{\AE}
-  \DeclareUnicodeCharacter{00C7}{\cedilla{C}}
-  \DeclareUnicodeCharacter{00C8}{\`E}
-  \DeclareUnicodeCharacter{00C9}{\'E}
-  \DeclareUnicodeCharacter{00CA}{\^E}
-  \DeclareUnicodeCharacter{00CB}{\"E}
-  \DeclareUnicodeCharacter{00CC}{\`I}
-  \DeclareUnicodeCharacter{00CD}{\'I}
-  \DeclareUnicodeCharacter{00CE}{\^I}
-  \DeclareUnicodeCharacter{00CF}{\"I}
-
-  \DeclareUnicodeCharacter{00D0}{\DH}
-  \DeclareUnicodeCharacter{00D1}{\~N}
-  \DeclareUnicodeCharacter{00D2}{\`O}
-  \DeclareUnicodeCharacter{00D3}{\'O}
-  \DeclareUnicodeCharacter{00D4}{\^O}
-  \DeclareUnicodeCharacter{00D5}{\~O}
-  \DeclareUnicodeCharacter{00D6}{\"O}
-  \DeclareUnicodeCharacter{00D8}{\O}
-  \DeclareUnicodeCharacter{00D9}{\`U}
-  \DeclareUnicodeCharacter{00DA}{\'U}
-  \DeclareUnicodeCharacter{00DB}{\^U}
-  \DeclareUnicodeCharacter{00DC}{\"U}
-  \DeclareUnicodeCharacter{00DD}{\'Y}
-  \DeclareUnicodeCharacter{00DE}{\TH}
-  \DeclareUnicodeCharacter{00DF}{\ss}
-
-  \DeclareUnicodeCharacter{00E0}{\`a}
-  \DeclareUnicodeCharacter{00E1}{\'a}
-  \DeclareUnicodeCharacter{00E2}{\^a}
-  \DeclareUnicodeCharacter{00E3}{\~a}
-  \DeclareUnicodeCharacter{00E4}{\"a}
-  \DeclareUnicodeCharacter{00E5}{\aa}
-  \DeclareUnicodeCharacter{00E6}{\ae}
-  \DeclareUnicodeCharacter{00E7}{\cedilla{c}}
-  \DeclareUnicodeCharacter{00E8}{\`e}
-  \DeclareUnicodeCharacter{00E9}{\'e}
-  \DeclareUnicodeCharacter{00EA}{\^e}
-  \DeclareUnicodeCharacter{00EB}{\"e}
-  \DeclareUnicodeCharacter{00EC}{\`{\dotless{i}}}
-  \DeclareUnicodeCharacter{00ED}{\'{\dotless{i}}}
-  \DeclareUnicodeCharacter{00EE}{\^{\dotless{i}}}
-  \DeclareUnicodeCharacter{00EF}{\"{\dotless{i}}}
-
-  \DeclareUnicodeCharacter{00F0}{\dh}
-  \DeclareUnicodeCharacter{00F1}{\~n}
-  \DeclareUnicodeCharacter{00F2}{\`o}
-  \DeclareUnicodeCharacter{00F3}{\'o}
-  \DeclareUnicodeCharacter{00F4}{\^o}
-  \DeclareUnicodeCharacter{00F5}{\~o}
-  \DeclareUnicodeCharacter{00F6}{\"o}
-  \DeclareUnicodeCharacter{00F8}{\o}
-  \DeclareUnicodeCharacter{00F9}{\`u}
-  \DeclareUnicodeCharacter{00FA}{\'u}
-  \DeclareUnicodeCharacter{00FB}{\^u}
-  \DeclareUnicodeCharacter{00FC}{\"u}
-  \DeclareUnicodeCharacter{00FD}{\'y}
-  \DeclareUnicodeCharacter{00FE}{\th}
-  \DeclareUnicodeCharacter{00FF}{\"y}
-
-  \DeclareUnicodeCharacter{0100}{\=A}
-  \DeclareUnicodeCharacter{0101}{\=a}
-  \DeclareUnicodeCharacter{0102}{\u{A}}
-  \DeclareUnicodeCharacter{0103}{\u{a}}
-  \DeclareUnicodeCharacter{0104}{\ogonek{A}}
-  \DeclareUnicodeCharacter{0105}{\ogonek{a}}
-  \DeclareUnicodeCharacter{0106}{\'C}
-  \DeclareUnicodeCharacter{0107}{\'c}
-  \DeclareUnicodeCharacter{0108}{\^C}
-  \DeclareUnicodeCharacter{0109}{\^c}
-  \DeclareUnicodeCharacter{0118}{\ogonek{E}}
-  \DeclareUnicodeCharacter{0119}{\ogonek{e}}
-  \DeclareUnicodeCharacter{010A}{\dotaccent{C}}
-  \DeclareUnicodeCharacter{010B}{\dotaccent{c}}
-  \DeclareUnicodeCharacter{010C}{\v{C}}
-  \DeclareUnicodeCharacter{010D}{\v{c}}
-  \DeclareUnicodeCharacter{010E}{\v{D}}
-
-  \DeclareUnicodeCharacter{0112}{\=E}
-  \DeclareUnicodeCharacter{0113}{\=e}
-  \DeclareUnicodeCharacter{0114}{\u{E}}
-  \DeclareUnicodeCharacter{0115}{\u{e}}
-  \DeclareUnicodeCharacter{0116}{\dotaccent{E}}
-  \DeclareUnicodeCharacter{0117}{\dotaccent{e}}
-  \DeclareUnicodeCharacter{011A}{\v{E}}
-  \DeclareUnicodeCharacter{011B}{\v{e}}
-  \DeclareUnicodeCharacter{011C}{\^G}
-  \DeclareUnicodeCharacter{011D}{\^g}
-  \DeclareUnicodeCharacter{011E}{\u{G}}
-  \DeclareUnicodeCharacter{011F}{\u{g}}
-
-  \DeclareUnicodeCharacter{0120}{\dotaccent{G}}
-  \DeclareUnicodeCharacter{0121}{\dotaccent{g}}
-  \DeclareUnicodeCharacter{0124}{\^H}
-  \DeclareUnicodeCharacter{0125}{\^h}
-  \DeclareUnicodeCharacter{0128}{\~I}
-  \DeclareUnicodeCharacter{0129}{\~{\dotless{i}}}
-  \DeclareUnicodeCharacter{012A}{\=I}
-  \DeclareUnicodeCharacter{012B}{\={\dotless{i}}}
-  \DeclareUnicodeCharacter{012C}{\u{I}}
-  \DeclareUnicodeCharacter{012D}{\u{\dotless{i}}}
-
-  \DeclareUnicodeCharacter{0130}{\dotaccent{I}}
-  \DeclareUnicodeCharacter{0131}{\dotless{i}}
-  \DeclareUnicodeCharacter{0132}{IJ}
-  \DeclareUnicodeCharacter{0133}{ij}
-  \DeclareUnicodeCharacter{0134}{\^J}
-  \DeclareUnicodeCharacter{0135}{\^{\dotless{j}}}
-  \DeclareUnicodeCharacter{0139}{\'L}
-  \DeclareUnicodeCharacter{013A}{\'l}
-
-  \DeclareUnicodeCharacter{0141}{\L}
-  \DeclareUnicodeCharacter{0142}{\l}
-  \DeclareUnicodeCharacter{0143}{\'N}
-  \DeclareUnicodeCharacter{0144}{\'n}
-  \DeclareUnicodeCharacter{0147}{\v{N}}
-  \DeclareUnicodeCharacter{0148}{\v{n}}
-  \DeclareUnicodeCharacter{014C}{\=O}
-  \DeclareUnicodeCharacter{014D}{\=o}
-  \DeclareUnicodeCharacter{014E}{\u{O}}
-  \DeclareUnicodeCharacter{014F}{\u{o}}
-
-  \DeclareUnicodeCharacter{0150}{\H{O}}
-  \DeclareUnicodeCharacter{0151}{\H{o}}
-  \DeclareUnicodeCharacter{0152}{\OE}
-  \DeclareUnicodeCharacter{0153}{\oe}
-  \DeclareUnicodeCharacter{0154}{\'R}
-  \DeclareUnicodeCharacter{0155}{\'r}
-  \DeclareUnicodeCharacter{0158}{\v{R}}
-  \DeclareUnicodeCharacter{0159}{\v{r}}
-  \DeclareUnicodeCharacter{015A}{\'S}
-  \DeclareUnicodeCharacter{015B}{\'s}
-  \DeclareUnicodeCharacter{015C}{\^S}
-  \DeclareUnicodeCharacter{015D}{\^s}
-  \DeclareUnicodeCharacter{015E}{\cedilla{S}}
-  \DeclareUnicodeCharacter{015F}{\cedilla{s}}
-
-  \DeclareUnicodeCharacter{0160}{\v{S}}
-  \DeclareUnicodeCharacter{0161}{\v{s}}
-  \DeclareUnicodeCharacter{0162}{\cedilla{t}}
-  \DeclareUnicodeCharacter{0163}{\cedilla{T}}
-  \DeclareUnicodeCharacter{0164}{\v{T}}
-
-  \DeclareUnicodeCharacter{0168}{\~U}
-  \DeclareUnicodeCharacter{0169}{\~u}
-  \DeclareUnicodeCharacter{016A}{\=U}
-  \DeclareUnicodeCharacter{016B}{\=u}
-  \DeclareUnicodeCharacter{016C}{\u{U}}
-  \DeclareUnicodeCharacter{016D}{\u{u}}
-  \DeclareUnicodeCharacter{016E}{\ringaccent{U}}
-  \DeclareUnicodeCharacter{016F}{\ringaccent{u}}
-
-  \DeclareUnicodeCharacter{0170}{\H{U}}
-  \DeclareUnicodeCharacter{0171}{\H{u}}
-  \DeclareUnicodeCharacter{0174}{\^W}
-  \DeclareUnicodeCharacter{0175}{\^w}
-  \DeclareUnicodeCharacter{0176}{\^Y}
-  \DeclareUnicodeCharacter{0177}{\^y}
-  \DeclareUnicodeCharacter{0178}{\"Y}
-  \DeclareUnicodeCharacter{0179}{\'Z}
-  \DeclareUnicodeCharacter{017A}{\'z}
-  \DeclareUnicodeCharacter{017B}{\dotaccent{Z}}
-  \DeclareUnicodeCharacter{017C}{\dotaccent{z}}
-  \DeclareUnicodeCharacter{017D}{\v{Z}}
-  \DeclareUnicodeCharacter{017E}{\v{z}}
-
-  \DeclareUnicodeCharacter{01C4}{D\v{Z}}
-  \DeclareUnicodeCharacter{01C5}{D\v{z}}
-  \DeclareUnicodeCharacter{01C6}{d\v{z}}
-  \DeclareUnicodeCharacter{01C7}{LJ}
-  \DeclareUnicodeCharacter{01C8}{Lj}
-  \DeclareUnicodeCharacter{01C9}{lj}
-  \DeclareUnicodeCharacter{01CA}{NJ}
-  \DeclareUnicodeCharacter{01CB}{Nj}
-  \DeclareUnicodeCharacter{01CC}{nj}
-  \DeclareUnicodeCharacter{01CD}{\v{A}}
-  \DeclareUnicodeCharacter{01CE}{\v{a}}
-  \DeclareUnicodeCharacter{01CF}{\v{I}}
-
-  \DeclareUnicodeCharacter{01D0}{\v{\dotless{i}}}
-  \DeclareUnicodeCharacter{01D1}{\v{O}}
-  \DeclareUnicodeCharacter{01D2}{\v{o}}
-  \DeclareUnicodeCharacter{01D3}{\v{U}}
-  \DeclareUnicodeCharacter{01D4}{\v{u}}
-
-  \DeclareUnicodeCharacter{01E2}{\={\AE}}
-  \DeclareUnicodeCharacter{01E3}{\={\ae}}
-  \DeclareUnicodeCharacter{01E6}{\v{G}}
-  \DeclareUnicodeCharacter{01E7}{\v{g}}
-  \DeclareUnicodeCharacter{01E8}{\v{K}}
-  \DeclareUnicodeCharacter{01E9}{\v{k}}
-
-  \DeclareUnicodeCharacter{01F0}{\v{\dotless{j}}}
-  \DeclareUnicodeCharacter{01F1}{DZ}
-  \DeclareUnicodeCharacter{01F2}{Dz}
-  \DeclareUnicodeCharacter{01F3}{dz}
-  \DeclareUnicodeCharacter{01F4}{\'G}
-  \DeclareUnicodeCharacter{01F5}{\'g}
-  \DeclareUnicodeCharacter{01F8}{\`N}
-  \DeclareUnicodeCharacter{01F9}{\`n}
-  \DeclareUnicodeCharacter{01FC}{\'{\AE}}
-  \DeclareUnicodeCharacter{01FD}{\'{\ae}}
-  \DeclareUnicodeCharacter{01FE}{\'{\O}}
-  \DeclareUnicodeCharacter{01FF}{\'{\o}}
-
-  \DeclareUnicodeCharacter{021E}{\v{H}}
-  \DeclareUnicodeCharacter{021F}{\v{h}}
-
-  \DeclareUnicodeCharacter{0226}{\dotaccent{A}}
-  \DeclareUnicodeCharacter{0227}{\dotaccent{a}}
-  \DeclareUnicodeCharacter{0228}{\cedilla{E}}
-  \DeclareUnicodeCharacter{0229}{\cedilla{e}}
-  \DeclareUnicodeCharacter{022E}{\dotaccent{O}}
-  \DeclareUnicodeCharacter{022F}{\dotaccent{o}}
-
-  \DeclareUnicodeCharacter{0232}{\=Y}
-  \DeclareUnicodeCharacter{0233}{\=y}
-  \DeclareUnicodeCharacter{0237}{\dotless{j}}
-
-  \DeclareUnicodeCharacter{02DB}{\ogonek{ }}
-
-  \DeclareUnicodeCharacter{1E02}{\dotaccent{B}}
-  \DeclareUnicodeCharacter{1E03}{\dotaccent{b}}
-  \DeclareUnicodeCharacter{1E04}{\udotaccent{B}}
-  \DeclareUnicodeCharacter{1E05}{\udotaccent{b}}
-  \DeclareUnicodeCharacter{1E06}{\ubaraccent{B}}
-  \DeclareUnicodeCharacter{1E07}{\ubaraccent{b}}
-  \DeclareUnicodeCharacter{1E0A}{\dotaccent{D}}
-  \DeclareUnicodeCharacter{1E0B}{\dotaccent{d}}
-  \DeclareUnicodeCharacter{1E0C}{\udotaccent{D}}
-  \DeclareUnicodeCharacter{1E0D}{\udotaccent{d}}
-  \DeclareUnicodeCharacter{1E0E}{\ubaraccent{D}}
-  \DeclareUnicodeCharacter{1E0F}{\ubaraccent{d}}
-
-  \DeclareUnicodeCharacter{1E1E}{\dotaccent{F}}
-  \DeclareUnicodeCharacter{1E1F}{\dotaccent{f}}
-
-  \DeclareUnicodeCharacter{1E20}{\=G}
-  \DeclareUnicodeCharacter{1E21}{\=g}
-  \DeclareUnicodeCharacter{1E22}{\dotaccent{H}}
-  \DeclareUnicodeCharacter{1E23}{\dotaccent{h}}
-  \DeclareUnicodeCharacter{1E24}{\udotaccent{H}}
-  \DeclareUnicodeCharacter{1E25}{\udotaccent{h}}
-  \DeclareUnicodeCharacter{1E26}{\"H}
-  \DeclareUnicodeCharacter{1E27}{\"h}
-
-  \DeclareUnicodeCharacter{1E30}{\'K}
-  \DeclareUnicodeCharacter{1E31}{\'k}
-  \DeclareUnicodeCharacter{1E32}{\udotaccent{K}}
-  \DeclareUnicodeCharacter{1E33}{\udotaccent{k}}
-  \DeclareUnicodeCharacter{1E34}{\ubaraccent{K}}
-  \DeclareUnicodeCharacter{1E35}{\ubaraccent{k}}
-  \DeclareUnicodeCharacter{1E36}{\udotaccent{L}}
-  \DeclareUnicodeCharacter{1E37}{\udotaccent{l}}
-  \DeclareUnicodeCharacter{1E3A}{\ubaraccent{L}}
-  \DeclareUnicodeCharacter{1E3B}{\ubaraccent{l}}
-  \DeclareUnicodeCharacter{1E3E}{\'M}
-  \DeclareUnicodeCharacter{1E3F}{\'m}
-
-  \DeclareUnicodeCharacter{1E40}{\dotaccent{M}}
-  \DeclareUnicodeCharacter{1E41}{\dotaccent{m}}
-  \DeclareUnicodeCharacter{1E42}{\udotaccent{M}}
-  \DeclareUnicodeCharacter{1E43}{\udotaccent{m}}
-  \DeclareUnicodeCharacter{1E44}{\dotaccent{N}}
-  \DeclareUnicodeCharacter{1E45}{\dotaccent{n}}
-  \DeclareUnicodeCharacter{1E46}{\udotaccent{N}}
-  \DeclareUnicodeCharacter{1E47}{\udotaccent{n}}
-  \DeclareUnicodeCharacter{1E48}{\ubaraccent{N}}
-  \DeclareUnicodeCharacter{1E49}{\ubaraccent{n}}
-
-  \DeclareUnicodeCharacter{1E54}{\'P}
-  \DeclareUnicodeCharacter{1E55}{\'p}
-  \DeclareUnicodeCharacter{1E56}{\dotaccent{P}}
-  \DeclareUnicodeCharacter{1E57}{\dotaccent{p}}
-  \DeclareUnicodeCharacter{1E58}{\dotaccent{R}}
-  \DeclareUnicodeCharacter{1E59}{\dotaccent{r}}
-  \DeclareUnicodeCharacter{1E5A}{\udotaccent{R}}
-  \DeclareUnicodeCharacter{1E5B}{\udotaccent{r}}
-  \DeclareUnicodeCharacter{1E5E}{\ubaraccent{R}}
-  \DeclareUnicodeCharacter{1E5F}{\ubaraccent{r}}
-
-  \DeclareUnicodeCharacter{1E60}{\dotaccent{S}}
-  \DeclareUnicodeCharacter{1E61}{\dotaccent{s}}
-  \DeclareUnicodeCharacter{1E62}{\udotaccent{S}}
-  \DeclareUnicodeCharacter{1E63}{\udotaccent{s}}
-  \DeclareUnicodeCharacter{1E6A}{\dotaccent{T}}
-  \DeclareUnicodeCharacter{1E6B}{\dotaccent{t}}
-  \DeclareUnicodeCharacter{1E6C}{\udotaccent{T}}
-  \DeclareUnicodeCharacter{1E6D}{\udotaccent{t}}
-  \DeclareUnicodeCharacter{1E6E}{\ubaraccent{T}}
-  \DeclareUnicodeCharacter{1E6F}{\ubaraccent{t}}
-
-  \DeclareUnicodeCharacter{1E7C}{\~V}
-  \DeclareUnicodeCharacter{1E7D}{\~v}
-  \DeclareUnicodeCharacter{1E7E}{\udotaccent{V}}
-  \DeclareUnicodeCharacter{1E7F}{\udotaccent{v}}
-
-  \DeclareUnicodeCharacter{1E80}{\`W}
-  \DeclareUnicodeCharacter{1E81}{\`w}
-  \DeclareUnicodeCharacter{1E82}{\'W}
-  \DeclareUnicodeCharacter{1E83}{\'w}
-  \DeclareUnicodeCharacter{1E84}{\"W}
-  \DeclareUnicodeCharacter{1E85}{\"w}
-  \DeclareUnicodeCharacter{1E86}{\dotaccent{W}}
-  \DeclareUnicodeCharacter{1E87}{\dotaccent{w}}
-  \DeclareUnicodeCharacter{1E88}{\udotaccent{W}}
-  \DeclareUnicodeCharacter{1E89}{\udotaccent{w}}
-  \DeclareUnicodeCharacter{1E8A}{\dotaccent{X}}
-  \DeclareUnicodeCharacter{1E8B}{\dotaccent{x}}
-  \DeclareUnicodeCharacter{1E8C}{\"X}
-  \DeclareUnicodeCharacter{1E8D}{\"x}
-  \DeclareUnicodeCharacter{1E8E}{\dotaccent{Y}}
-  \DeclareUnicodeCharacter{1E8F}{\dotaccent{y}}
-
-  \DeclareUnicodeCharacter{1E90}{\^Z}
-  \DeclareUnicodeCharacter{1E91}{\^z}
-  \DeclareUnicodeCharacter{1E92}{\udotaccent{Z}}
-  \DeclareUnicodeCharacter{1E93}{\udotaccent{z}}
-  \DeclareUnicodeCharacter{1E94}{\ubaraccent{Z}}
-  \DeclareUnicodeCharacter{1E95}{\ubaraccent{z}}
-  \DeclareUnicodeCharacter{1E96}{\ubaraccent{h}}
-  \DeclareUnicodeCharacter{1E97}{\"t}
-  \DeclareUnicodeCharacter{1E98}{\ringaccent{w}}
-  \DeclareUnicodeCharacter{1E99}{\ringaccent{y}}
-
-  \DeclareUnicodeCharacter{1EA0}{\udotaccent{A}}
-  \DeclareUnicodeCharacter{1EA1}{\udotaccent{a}}
-
-  \DeclareUnicodeCharacter{1EB8}{\udotaccent{E}}
-  \DeclareUnicodeCharacter{1EB9}{\udotaccent{e}}
-  \DeclareUnicodeCharacter{1EBC}{\~E}
-  \DeclareUnicodeCharacter{1EBD}{\~e}
-
-  \DeclareUnicodeCharacter{1ECA}{\udotaccent{I}}
-  \DeclareUnicodeCharacter{1ECB}{\udotaccent{i}}
-  \DeclareUnicodeCharacter{1ECC}{\udotaccent{O}}
-  \DeclareUnicodeCharacter{1ECD}{\udotaccent{o}}
-
-  \DeclareUnicodeCharacter{1EE4}{\udotaccent{U}}
-  \DeclareUnicodeCharacter{1EE5}{\udotaccent{u}}
-
-  \DeclareUnicodeCharacter{1EF2}{\`Y}
-  \DeclareUnicodeCharacter{1EF3}{\`y}
-  \DeclareUnicodeCharacter{1EF4}{\udotaccent{Y}}
-
-  \DeclareUnicodeCharacter{1EF8}{\~Y}
-  \DeclareUnicodeCharacter{1EF9}{\~y}
-
-  \DeclareUnicodeCharacter{2013}{--}
-  \DeclareUnicodeCharacter{2014}{---}
-  \DeclareUnicodeCharacter{2018}{\quoteleft}
-  \DeclareUnicodeCharacter{2019}{\quoteright}
-  \DeclareUnicodeCharacter{201A}{\quotesinglbase}
-  \DeclareUnicodeCharacter{201C}{\quotedblleft}
-  \DeclareUnicodeCharacter{201D}{\quotedblright}
-  \DeclareUnicodeCharacter{201E}{\quotedblbase}
-  \DeclareUnicodeCharacter{2022}{\bullet}
-  \DeclareUnicodeCharacter{2026}{\dots}
-  \DeclareUnicodeCharacter{2039}{\guilsinglleft}
-  \DeclareUnicodeCharacter{203A}{\guilsinglright}
-  \DeclareUnicodeCharacter{20AC}{\euro}
-
-  \DeclareUnicodeCharacter{2192}{\expansion}
-  \DeclareUnicodeCharacter{21D2}{\result}
-
-  \DeclareUnicodeCharacter{2212}{\minus}
-  \DeclareUnicodeCharacter{2217}{\point}
-  \DeclareUnicodeCharacter{2261}{\equiv}
-}% end of \utfeightchardefs
+  \let\DeclareUnicodeCharacter\DeclareUnicodeCharacterUTFviii
+  \unicodechardefs
+}
+
+% Whether the active definitions of non-ASCII characters expand to
+% non-active tokens with the same character code.  This is used to
+% write characters literally, instead of using active definitions for
+% printing the correct glyphs.
+\newif\ifpassthroughchars
+\passthroughcharsfalse
+
+% For native Unicode handling (XeTeX and LuaTeX),
+% provide a definition macro to replace/pass-through a Unicode character
+%
+\def\DeclareUnicodeCharacterNative#1#2{%
+  \catcode"#1=\active
+  \def\dodeclareunicodecharacternative##1##2##3{%
+    \begingroup
+      \uccode`\~="##2\relax
+      \uppercase{\gdef~}{%
+        \ifpassthroughchars
+          ##1%
+        \else
+          ##3%
+        \fi
+      }
+    \endgroup
+  }
+  \begingroup
+    \uccode`\.="#1\relax
+    \uppercase{\def\UTFNativeTmp{.}}%
+    \expandafter\dodeclareunicodecharacternative\UTFNativeTmp{#1}{#2}%
+  \endgroup
+}
 
+% Native Unicode handling (XeTeX and LuaTeX) character replacing definition.
+% It activates the setting that replaces Unicode characters.
+\def\nativeunicodechardefs{%
+  \let\DeclareUnicodeCharacter\DeclareUnicodeCharacterNative
+  \unicodechardefs
+}
+
+% For native Unicode handling (XeTeX and LuaTeX),
+% make the character token expand
+% to the sequences given in \unicodechardefs for printing.
+\def\DeclareUnicodeCharacterNativeAtU#1#2{%
+  \def\UTFAtUTmp{#2}
+  \expandafter\globallet\csname uni:#1\endcsname \UTFAtUTmp
+}
+
+% @U command definitions for native Unicode handling (XeTeX and LuaTeX).
+\def\nativeunicodechardefsatu{%
+  \let\DeclareUnicodeCharacter\DeclareUnicodeCharacterNativeAtU
+  \unicodechardefs
+}
 
 % US-ASCII character definitions.
 \def\asciichardefs{% nothing need be done
    \relax
 }
 
+% define all Unicode characters we know about, for the sake of @U.
+\iftxinativeunicodecapable
+  \nativeunicodechardefsatu
+\else
+  \utfeightchardefs
+\fi
+
+
 % Make non-ASCII characters printable again for compatibility with
 % existing Texinfo documents that may use them, even without declaring a
 % document encoding.
@@ -9581,12 +11255,12 @@ directory should work if nowhere else do
   \advance\vsize by \topskip
   \outervsize = \vsize
   \advance\outervsize by 2\topandbottommargin
-  \pageheight = \vsize
+  \txipageheight = \vsize
   %
   \hsize = #2\relax
   \outerhsize = \hsize
   \advance\outerhsize by 0.5in
-  \pagewidth = \hsize
+  \txipagewidth = \hsize
   %
   \normaloffset = #4\relax
   \bindingoffset = #5\relax
@@ -9598,6 +11272,13 @@ directory should work if nowhere else do
     % whatever layout pdftex was dumped with.
     \pdfhorigin = 1 true in
     \pdfvorigin = 1 true in
+  \else
+    \ifx\XeTeXrevision\thisisundefined
+    \else
+      \pdfpageheight #7\relax
+      \pdfpagewidth #8\relax
+      % XeTeX does not have \pdfhorigin and \pdfvorigin.
+    \fi
   \fi
   %
   \setleading{\textleading}
@@ -9785,44 +11466,47 @@ directory should work if nowhere else do
 % this is not a problem.
 \def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
 
-% Turn off all special characters except @
-% (and those which the user can use as if they were ordinary).
+% Set catcodes for Texinfo file
+
+% Active characters for printing the wanted glyph.
 % Most of these we simply print from the \tt font, but for some, we can
 % use math or other variants that look better in normal text.
-
+%
 \catcode`\"=\active
 \def\activedoublequote{{\tt\char34}}
 \let"=\activedoublequote
-\catcode`\~=\active
-\def~{{\tt\char126}}
-\chardef\hat=`\^
-\catcode`\^=\active
-\def^{{\tt \hat}}
+\catcode`\~=\active \def\activetilde{{\tt\char126}} \let~ = \activetilde
+\chardef\hatchar=`\^
+\catcode`\^=\active \def\activehat{{\tt \hatchar}} \let^ = \activehat
 
 \catcode`\_=\active
 \def_{\ifusingtt\normalunderscore\_}
-\let\realunder=_
-% Subroutine for the previous macro.
 \def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }
+\let\realunder=_
+
+\catcode`\|=\active \def|{{\tt\char124}}
 
-\catcode`\|=\active
-\def|{{\tt\char124}}
 \chardef \less=`\<
-\catcode`\<=\active
-\def<{{\tt \less}}
+\catcode`\<=\active \def\activeless{{\tt \less}}\let< = \activeless
 \chardef \gtr=`\>
-\catcode`\>=\active
-\def>{{\tt \gtr}}
-\catcode`\+=\active
-\def+{{\tt \char 43}}
-\catcode`\$=\active
-\def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
-
-% If a .fmt file is being used, characters that might appear in a file
-% name cannot be active until we have parsed the command line.
-% So turn them off again, and have \everyjob (or @setfilename) turn them on.
-% \otherifyactive is called near the end of this file.
-\def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
+\catcode`\>=\active \def\activegtr{{\tt \gtr}}\let> = \activegtr
+\catcode`\+=\active \def+{{\tt \char 43}}
+\catcode`\$=\active \def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
+\catcode`\-=\active \let-=\normaldash
+
+
+% used for headline/footline in the output routine, in case the page
+% breaks in the middle of an @tex block.
+\def\texinfochars{%
+  \let< = \activeless
+  \let> = \activegtr
+  \let~ = \activetilde 
+  \let^ = \activehat
+  \markupsetuplqdefault \markupsetuprqdefault 
+  \let\b = \strong
+  \let\i = \smartitalic
+  % in principle, all other definitions in \tex have to be undone too.
+}
 
 % Used sometimes to turn off (effectively) the active characters even after
 % parsing them.
@@ -9842,23 +11526,22 @@ directory should work if nowhere else do
 % \doublebackslash is two of them (for the pdf outlines).
 {\catcode`\\=\other @gdef@realbackslash{\} @gdef@doublebackslash{\\}}
 
-% In texinfo, backslash is an active character; it prints the backslash
+% In Texinfo, backslash is an active character; it prints the backslash
 % in fixed width font.
 \catcode`\\=\active  % @ for escape char from now on.
 
-% The story here is that in math mode, the \char of \backslashcurfont
-% ends up printing the roman \ from the math symbol font (because \char
-% in math mode uses the \mathcode, and plain.tex sets
-% \mathcode`\\="026E).  It seems better for @backslashchar{} to always
-% print a typewriter backslash, hence we use an explicit \mathchar,
+% Print a typewriter backslash.  For math mode, we can't simply use
+% \backslashcurfont: the story here is that in math mode, the \char
+% of \backslashcurfont ends up printing the roman \ from the math symbol
+% font (because \char in math mode uses the \mathcode, and plain.tex
+% sets \mathcode`\\="026E).  Hence we use an explicit \mathchar,
 % which is the decimal equivalent of "715c (class 7, e.g., use \fam;
 % ignored family value; char position "5C).  We can't use " for the
 % usual hex value because it has already been made active.
-@def@normalbackslash{{@tt @ifmmode @mathchar29020 @else @backslashcurfont @fi}}
-@let@backslashchar = @normalbackslash % @backslashchar{} is for user documents.
 
-% On startup, @fixbackslash assigns:
-%  @let \ = @normalbackslash
+@def@ttbackslash{{@tt @ifmmode @mathchar29020 @else @backslashcurfont @fi}}
+@let@backslashchar = @ttbackslash % @backslashchar{} is for user documents.
+
 % \rawbackslash defines an active \ to do \backslashcurfont.
 % \otherbackslash defines an active \ to be a literal `\' character with
 % catcode other.  We switch back and forth between these.
@@ -9868,45 +11551,87 @@ directory should work if nowhere else do
 % Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of
 % the literal character `\'.
 %
-@def@normalturnoffactive{%
-  @let"=@normaldoublequote
-  @let$=@normaldollar %$ font-lock fix
-  @let+=@normalplus
-  @let<=@normalless
-  @let>=@normalgreater
-  @let\=@normalbackslash
-  @let^=@normalcaret
-  @let_=@normalunderscore
-  @let|=@normalverticalbar
-  @let~=@normaltilde
-  @markupsetuplqdefault
-  @markupsetuprqdefault
-  @unsepspaces
-}
-
-% Make _ and + \other characters, temporarily.
-% This is canceled by @fixbackslash.
-@otherifyactive
+{@catcode`- = @active
+ @gdef@normalturnoffactive{%
+   @passthroughcharstrue
+   @let-=@normaldash
+   @let"=@normaldoublequote
+   @let$=@normaldollar %$ font-lock fix
+   @let+=@normalplus
+   @let<=@normalless
+   @let>=@normalgreater
+   @let^=@normalcaret
+   @let_=@normalunderscore
+   @let|=@normalverticalbar
+   @let~=@normaltilde
+   @let\=@ttbackslash
+   @markupsetuplqdefault
+   @markupsetuprqdefault
+   @unsepspaces
+ }
+}
+
+% If a .fmt file is being used, characters that might appear in a file
+% name cannot be active until we have parsed the command line.
+% So turn them off again, and have @fixbackslash turn them back on.
+@catcode`+=@other @catcode`@_=@other
 
+% \enablebackslashhack - allow file to begin `\input texinfo'
+%
 % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
 % That is what \eatinput is for; after that, the `\' should revert to printing
 % a backslash.
-%
-@gdef@eatinput input texinfo{@fixbackslash}
-@global@let\ = @eatinput
+% If the file did not have a `\input texinfo', then it is turned off after
+% the first line; otherwise the first `\' in the file would cause an error.
+% This is used on the very last line of this file, texinfo.tex.
+% We also use @c to call @fixbackslash, in case ends of lines are hidden.
+{
+@catcode`@^=7
+@catcode`@^^M=13@gdef@enablebackslashhack{%
+  @global@let\ = @eatinput%
+  @catcode`@^^M=13%
+  @def@c{@fixbackslash@c}%
+  % Definition for the newline at the end of this file.
+  @def ^^M{@let^^M@secondlinenl}%
+  % Definition for a newline in the main Texinfo file.
+  @gdef @secondlinenl{@fixbackslash}%
+}}
+
+{@catcode`@^=7 @catcode`@^^M=13%
+@gdef@eatinput input texinfo#1^^M{@fixbackslash}}
+
+% Emergency active definition of newline, in case an active newline token
+% appears by mistake.
+{@catcode`@^=7 @catcode13=13%
+@gdef@enableemergencynewline{%
+  @gdef^^M{%
+    @par%
+    %<warning: active newline>@par%
+}}}
+
 
-% On the other hand, perhaps the file did not have a `\input texinfo'. Then
-% the first `\' in the file would cause an error. This macro tries to fix
-% that, assuming it is called before the first `\' could plausibly occur.
-% Also turn back on active characters that might appear in the input
-% file name, in case not using a pre-dumped format.
-%
 @gdef@fixbackslash{%
-  @ifx\@eatinput @let\ = @normalbackslash @fi
+  @ifx\@eatinput @let\ = @ttbackslash @fi
+  @catcode13=5 % regular end of line
+  @enableemergencynewline
+  @let@c=@texinfoc
+  % Also turn back on active characters that might appear in the input
+  % file name, in case not using a pre-dumped format.
   @catcode`+=@active
   @catcode`@_=@active
+  %
+  % If texinfo.cnf is present on the system, read it.
+  % Useful for site-wide @afourpaper, etc.  This macro, @fixbackslash, gets
+  % called at the beginning of every Texinfo file.  Not opening texinfo.cnf
+  % directly in this file, texinfo.tex, makes it possible to make a format
+  % file for Texinfo.
+  %
+  @openin 1 texinfo.cnf
+  @ifeof 1 @else @input texinfo.cnf @fi
+  @closein 1
 }
 
+
 % Say @foo, not \foo, in error messages.
 @escapechar = `@@
 
@@ -9935,7 +11660,7 @@ directory should work if nowhere else do
 
 @c Local variables:
 @c eval: (add-hook 'write-file-hooks 'time-stamp)
-@c page-delimiter: "^\\\\message"
+@c page-delimiter: "^\\\\message\\|emacs-page"
 @c time-stamp-start: "def\\\\texinfoversion{"
 @c time-stamp-format: "%:y-%02m-%02d.%02H"
 @c time-stamp-end: "}"
@@ -9943,6 +11668,4 @@ directory should work if nowhere else do
 
 @c vim:sw=2:
 
-@ignore
-   arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115
-@end ignore
+@enablebackslashhack
diff -pruN 4.6+git20120811-4/build-aux/update-copyright 4.6.21+20171216ss6cdfd-1/build-aux/update-copyright
--- 4.6+git20120811-4/build-aux/update-copyright	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/update-copyright	2017-01-20 07:05:41.000000000 +0000
@@ -1,11 +1,11 @@
-eval '(exit $?0)' && eval 'exec perl -wS -0777 -pi "$0" ${1+"$@"}'
+eval '(exit $?0)' && eval 'exec perl -wS -0777 -pi "$0" "$@"'
   & eval 'exec perl -wS -0777 -pi "$0" $argv:q'
     if 0;
 # Update an FSF copyright year list to include the current year.
 
-my $VERSION = '2012-01-27.09:18'; # UTC
+my $VERSION = '2016-01-12.23:13'; # UTC
 
-# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017 Free Software Foundation, Inc.
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,7 +24,7 @@ my $VERSION = '2012-01-27.09:18'; # UTC
 
 # The arguments to this script should be names of files that contain
 # copyright statements to be updated.  The copyright holder's name
-# defaults to "Free Softward Foundation, Inc." but may be changed to
+# defaults to "Free Software Foundation, Inc." but may be changed to
 # any other name by using the "UPDATE_COPYRIGHT_HOLDER" environment
 # variable.
 #
@@ -43,7 +43,7 @@ my $VERSION = '2012-01-27.09:18'; # UTC
 # A warning is printed for every file for which no copyright
 # statement is recognized.
 #
-# Each file's copyright statement must be formated correctly in
+# Each file's copyright statement must be formatted correctly in
 # order to be recognized.  For example, each of these is fine:
 #
 #   Copyright @copyright{} 1990-2005, 2007-2009 Free Software
@@ -124,7 +124,7 @@ use strict;
 use warnings;
 
 my $copyright_re = 'Copyright';
-my $circle_c_re = '(?:\([cC]\)|@copyright{}|&copy;)';
+my $circle_c_re = '(?:\([cC]\)|@copyright\{}|\\\\\(co|&copy;)';
 my $holder = $ENV{UPDATE_COPYRIGHT_HOLDER};
 $holder ||= 'Free Software Foundation, Inc.';
 my $prefix_max = 5;
@@ -192,7 +192,7 @@ if (defined $stmt_re)
     if ($final_year != $this_year)
       {
         # Update the year.
-        $stmt =~ s/$final_year_orig/$final_year, $this_year/;
+        $stmt =~ s/\b$final_year_orig\b/$final_year, $this_year/;
       }
     if ($final_year != $this_year || $ENV{'UPDATE_COPYRIGHT_FORCE'})
       {
@@ -269,6 +269,6 @@ else
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "my $VERSION = '"
 # time-stamp-format: "%:y-%02m-%02d.%02H:%02M"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "'; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/build-aux/useless-if-before-free 4.6.21+20171216ss6cdfd-1/build-aux/useless-if-before-free
--- 4.6+git20120811-4/build-aux/useless-if-before-free	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/useless-if-before-free	2017-01-20 07:05:41.000000000 +0000
@@ -1,16 +1,16 @@
-eval '(exit $?0)' && eval 'exec perl -wST "$0" ${1+"$@"}'
+eval '(exit $?0)' && eval 'exec perl -wST "$0" "$@"'
   & eval 'exec perl -wST "$0" $argv:q'
     if 0;
 # Detect instances of "if (p) free (p);".
 # Likewise "if (p != 0)", "if (0 != p)", or with NULL; and with braces.
 
-my $VERSION = '2012-01-06 07:23'; # UTC
+my $VERSION = '2016-08-01 17:47'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
 # do its job.  Otherwise, update this string manually.
 
-# Copyright (C) 2008-2012 Free Software Foundation, Inc.
+# Copyright (C) 2008-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -129,6 +129,9 @@ sub is_NULL ($)
           $err = EXIT_ERROR, next;
       while (defined (my $line = <FH>))
         {
+          # Skip non-matching lines early to save time
+          $line =~ /\bif\b/
+            or next;
           while ($line =~
               /\b(if\s*\(\s*([^)]+?)(?:\s*!=\s*([^)]+?))?\s*\)
               #  1          2                  3
@@ -202,6 +205,6 @@ EOF
 ## eval: (add-hook 'write-file-hooks 'time-stamp)
 ## time-stamp-start: "my $VERSION = '"
 ## time-stamp-format: "%:y-%02m-%02d %02H:%02M"
-## time-stamp-time-zone: "UTC"
+## time-stamp-time-zone: "UTC0"
 ## time-stamp-end: "'; # UTC"
 ## End:
diff -pruN 4.6+git20120811-4/build-aux/vc-list-files 4.6.21+20171216ss6cdfd-1/build-aux/vc-list-files
--- 4.6+git20120811-4/build-aux/vc-list-files	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/build-aux/vc-list-files	2017-01-20 07:05:41.000000000 +0000
@@ -2,9 +2,9 @@
 # List version-controlled file names.
 
 # Print a version string.
-scriptversion=2011-05-16.22; # UTC
+scriptversion=2016-01-11.22; # UTC
 
-# Copyright (C) 2006-2012 Free Software Foundation, Inc.
+# Copyright (C) 2006-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -108,6 +108,6 @@ done
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
+# time-stamp-time-zone: "UTC0"
 # time-stamp-end: "; # UTC"
 # End:
diff -pruN 4.6+git20120811-4/cfg.mk 4.6.21+20171216ss6cdfd-1/cfg.mk
--- 4.6+git20120811-4/cfg.mk	2013-08-18 20:23:29.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/cfg.mk	2017-01-20 07:10:05.000000000 +0000
@@ -1,5 +1,5 @@
 # Customize maint.mk.                           -*- makefile -*-
-# Copyright (C) 2003-2012 Free Software Foundation, Inc.
+# Copyright (C) 2003-2017 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff -pruN 4.6+git20120811-4/ChangeLog 4.6.21+20171216ss6cdfd-1/ChangeLog
--- 4.6+git20120811-4/ChangeLog	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/ChangeLog	2017-12-17 01:03:38.000000000 +0000
@@ -1,5 +1,131 @@
+2017-11-23  Jim Meyering  <meyering@fb.com>
+
+	fix handling of 64-bit ino_t
+	The dev/inode hashing code used only four bytes of each inode number,
+	and thus could malfunction:
+	  mkid: warning: `f1' and `f1' are the same file, but yield different scans!
+	* libidu/walker.c (dev_ino_hash_1, dev_ino_hash_2): Adjust to use all bytes
+	of device and inode numbers.
+	* NEWS (Bugs): Mention it.
+	Reported by Curt McDowell in https://bugs.gnu.org/29092
+
+2017-11-07  Jim Meyering  <meyering@fb.com>
+
+	lid: fix invalid fallthrough after failed exec
+	gcc's -Wimplicit-fallthrough detected a bug: lid would
+	fall through it's "case 0" after a failed execvp.
+	* src/lid.c: Include "die.h".
+	Use "die (EXIT_FAILURE,...", not "error (0,..."
+
+	build: add die.h from coreutils
+	* src/die.h: New file. From coreutils.
+	* src/Makefile.am (noinst_HEADERS): Add it.
+
+	build: address -Wimplicit-fallthrough= warnings
+	* src/mkid.c (FALLTHROUGH): Define.
+	(main): Mark two case statements as such.
+
+	build: fix type-vs-format-string mismatches
+	* libidu/idread.c (io_read): As above.
+	* libidu/idu-hash.c (hash_init, hash_print_stats): Likewise.
+	* libidu/idwrite.c (io_write): Likewise.
+	* libidu/scanners.c (ARGS): Likewise.
+	* libidu/walker.c (print_member_file, langs_excluded): Likewise.
+	* src/lid.c (main): Likewise.
+	* src/mkid.c (scan_files, report_statistics, summarize): Likewise.
+
+2017-01-19  Jim Meyering  <meyering@fb.com>
+
+	maint: update copyright dates
+
+	gnulib: update to latest; and update bootstrap and init.sh
+
+2014-02-13  Jim Meyering  <meyering@fb.com>
+
+	gnulib: update to latest
+
+	maint: update copyright years
+
+2014-02-13  Tom Tromey  <tromey@redhat.com>
+
+	doc: change the manual to build with texinfo 5.1
+	* doc/idutils.texi (Top): Rearrange menu.
+	(Quick start): Use @itemize and @item.
+	(Common options): Rearrange menu.
+	(Walker options): Use @item, not @itemx.
+	(Past and Future): Use @itemize and @item.
+
+2013-08-11  Jim Meyering  <meyering@fb.com>
+
+	doc: remove idutils.texi front- and back-cover text requirements
+	* doc/idutils.texi: Do not require front- or back-cover text,
+	thus making this section the same as gzip's, so this may be
+	included in Debian's "free" (rather than non-free) archive.
+
+2012-10-23  Jim Meyering  <meyering@redhat.com>
+
+	build: update gnulib, bootstrap and init.sh
+
+2012-10-23  Eric Blake  <eblake@redhat.com>
+
+	build: default to --enable-gcc-warnings in a git tree
+	Anyone building from cloned sources can be assumed to have a new
+	enough environment, such that enabling gcc warnings by default will
+	be useful.  Tarballs still default to no warnings, and the default
+	can still be overridden with --disable-gcc-warnings.
+	* configure.ac (gl_gcc_warnings): Set default based on environment.
+
+2012-10-23  Jim Meyering  <jim@meyering.net>
+
+	lid: avoid reading beyond end of buffer for a long name
+	* libidu/idfile.h (stzncpy): Define, from coreutils.
+	* src/lid.c (query_ambiguous_prefix): Avoid buffer overrun.
+	Using strncpy to copy a too-long name would result in a "name"
+	that is not NUL-terminated, yet that name would be treated as
+	a NUL-terminated string immediately afterwards, via report_func,
+	which attempts to print it.
+	* libidu/fnprint.c (root_name): Use stzncpy in place of strncpy.
+	* NEWS (Bug fixes): Mention the bug fix.
+
+2012-05-11  Jim Meyering  <meyering@redhat.com>
+
+	maint: arrange for "make distcheck" to run the syntax-check rules
+	* Makefile.am (ALL_RECURSIVE_TARGETS): Define.
+	(distcheck-hook): Depend on syntax-check.
+
+	maint: avoid new syntax-check failures
+	* cfg.mk (old_NEWS_hash): Update to reflect typo fix in old NEWS.
+	* doc/idutils.texi: Add "." before @xref.
+
+	build: update gnulib submodule to latest
+
+2012-04-17  Jim Meyering  <meyering@redhat.com>
+
+	maint: fix comment/doc typos
+	Found using https://github.com/lyda/misspell-check
+	* ChangeLog-2007: As above.
+	* NEWS: Likewise.
+	* src/mkid.c: Likewise.
+
+2012-02-04  Jim Meyering  <meyering@redhat.com>
+
+	maint: reenable gnulib's get-rusage-as-tests
+	* bootstrap.conf (avoided_gnulib_modules): Don't exclude
+	get-rusage-as-tests.  That test has now been fixed.
+	* gnulib: Update to latest, for fixed get-rusage-as-tests.
+
 2012-02-03  Jim Meyering  <meyering@redhat.com>
 
+	maint: adjust the URL that will appear in the generated announcement
+	* cfg.mk (url_dir_list): Use this http://ftp.gnu.org/gnu/$(PACKAGE)
+	for the first link listed in the generated announcement.
+	announce-gen now provides the faster mirror link automatically.
+
+	maint: post-release administrivia
+	* NEWS: Add header line for next release.
+	* .prev-version: Record previous version.
+	* cfg.mk (old_NEWS_hash): Auto-update.
+
 	version 4.6
 	* NEWS: Record release date.
 
@@ -161,14 +287,14 @@
 	* cfg.mk (local-checks-to-skip): Add sc_prohibit_path_max_allocation
 	to the list of skipped syntax-check rules.  This is temporary.
 
-2011-05-25  Jim Meyering  <meyering@redhat.com>
+2011-05-24  Jim Meyering  <meyering@redhat.com>
 
 	maint: update gnulib to latest with accompanying tight-scope tweak
 	* cfg.mk: Include $(srcdir)/dist-check.mk using "-include",
 	to accommodate the new sc_tight_scope rule.
 	* gnulib: Update to latest.
 
-2011-05-24  Jim Meyering  <meyering@redhat.com>
+2011-05-23  Jim Meyering  <meyering@redhat.com>
 
 	tests: add tests for the lid -F ..N bug
 	* testsuite/lid-range: New file with tests based on a report by Shigio
@@ -176,7 +302,7 @@
 	* testsuite/Makefile.am (TESTS): Add it.
 	* NEWS (Bug fixes): Mention the bug fix.
 
-2011-05-24  Shigio YAMAGUCHI  <shigio@gnu.org>
+2011-05-23  Shigio YAMAGUCHI  <shigio@gnu.org>
 
 	lid -F RANGE: fix a bug in handling open-ended ranges
 	* src/lid.c (parse_frequency_arg): lid -F 2.. would mistakenly
@@ -250,6 +376,8 @@
 
 	build: update gnulib submodule to latest
 
+2010-09-03  Jim Meyering  <meyering@redhat.com>
+
 	build: use gettext-h, not gettext
 	* bootstrap.conf (gnulib_modules): Use gettext-h, not gettext.
 	The latter is overkill for a package that uses
@@ -262,15 +390,13 @@
 	Add a little to the history.  Remove mention of cscope plans.
 	Richard Lloyd reported that README was out of date.
 
-2010-06-19  Jim Meyering  <meyering@redhat.com>
+2010-06-18  Jim Meyering  <meyering@redhat.com>
 
 	maint: mention the GPLv3 update in NEWS
 	* NEWS (4.3.92): Note when we switched to GPLv3.
 	* cfg.mk (old_NEWS_hash): Update to reflect addition to old NEWS.
 	Suggested by Karl Berry.
 
-2010-06-18  Jim Meyering  <meyering@redhat.com>
-
 	tests: avoid "make check" failure with Solaris 10's "fmt"
 	* man/Makefile.am (check-x-vs-1): Use "fmt -w 1", not "fmt -w1",
 	since the latter fails on Solaris 10 with "fmt: bad width: 0".
@@ -285,6 +411,8 @@
 	* libidu/id-lang.map: Teach mkid about the .xz suffix.
 	Tell mkid to use the "xz" program on .lzma files.
 
+2010-06-16  Jim Meyering  <meyering@redhat.com>
+
 	post-release administrivia
 	* NEWS: Add header line for next release.
 	* .prev-version: Record previous version.
@@ -296,8 +424,6 @@
 	maint: use gnulib's do-release-commit-and-tag module
 	* bootstrap.conf (gnulib_modules): Add do-release-commit-and-tag.
 
-2010-06-16  Jim Meyering  <meyering@redhat.com>
-
 	tests: fix "make distcheck" failure
 	* testsuite/help-version (mkid_setup): Tell mkid not to access
 	the not-yet-installed id-lang.map file.
@@ -316,6 +442,8 @@
 	* libidu/walker.c [! HAVE_LSTAT] (lstat): Remove definition.
 	Gnulib already handles that.
 
+2010-06-15  Jim Meyering  <meyering@redhat.com>
+
 	maint: update bootstrap and init.sh from gnulib
 	* bootstrap: Update from gnulib.
 	* testsuite/init.sh: Likewise.
@@ -372,6 +500,8 @@
 	for help-version's cross check.
 	(built_programs): Adjust to work, and to accommodate $(EXEEXT).
 
+2010-04-30  Jim Meyering  <meyering@redhat.com>
+
 	maint: accommodate new syntax-check rules
 	* bootstrap.conf (gnulib_modules): Add sys_ioctl
 	* src/lid.c: Include <sys/ioctl.h> unconditionally.
@@ -488,12 +618,10 @@
 
 	build: update gnulib submodule to latest
 
-2009-10-19  Jim Meyering  <meyering@redhat.com>
+2009-10-18  Jim Meyering  <meyering@redhat.com>
 
 	build: update gnulib submodule to latest
 
-2009-10-18  Jim Meyering  <meyering@redhat.com>
-
 	build: update bootstrap from coreutils
 	* bootstrap: Update from coreutils.
 	* bootstrap.conf: Likewise.
@@ -730,6 +858,8 @@
 	* src/xtokid.c: (usage): Likewise.
 	* src/mkid.c (sum_files): Remove unused macro.
 
+2009-04-29  Jim Meyering  <meyering@redhat.com>
+
 	build: suppress warnings about ignored return value from fread/fwrite
 	* libidu/idwrite.c: include "ignore-value.h".
 	(io_write): Ignore fwrite return value.
@@ -752,8 +882,6 @@
 	(AM_CFLAGS): Define to $(WARN_CFLAGS) $(WERROR_CFLAGS).
 	* src/Makefile.am (AM_CPPFLAGS): Remove bogus -I.../intl
 
-2009-04-29  Jim Meyering  <meyering@redhat.com>
-
 	build: address automake warning
 	* lib/Makefile.am (AM_CFLAGS): Increment, rather than assigning,
 	so as not to override settings from just-included gnulib.mk.
@@ -838,7 +966,7 @@
 	avoid a start-up leak
 	* libidu/walker.c (get_current_dir_link): Don't leak cwd_0.
 
-2008-10-22  Pedro J. Ruiz Lopez  <holzplatten@es.gnu.org>
+2008-10-21  Pedro J. Ruiz Lopez  <holzplatten@es.gnu.org>
 
 	accommodate gnulib header removals
 	* libidu/idfile.c: Include <sys/stat.h>, not "lstat.h".
@@ -945,7 +1073,7 @@
 
 	* bootstrap.conf (gnulib_modules): Add autobuild.
 
-2008-05-28  Jim Meyering  <meyering@redhat.com>
+2008-05-27  Jim Meyering  <meyering@redhat.com>
 
 	* maint.mk: Merge from coreutils.
 
@@ -962,8 +1090,6 @@
 	* man/Makefile.am (aid.1, eid.1, gid.1): Adjust dependencies.
 	* .gitignore: Add src/aid, src/eid, src/gid.
 
-2008-05-27  Jim Meyering  <meyering@redhat.com>
-
 	enforce --help and --version compliance
 	* configure.ac (AM_INIT_AUTOMAKE): Add std-options.
 
@@ -1098,7 +1224,7 @@
 	* Makefile.maint: Likewise.
 	* configure.ac: Likewise.
 
-2008-03-03  Jim Meyering  <meyering@redhat.com>
+2008-03-02  Jim Meyering  <meyering@redhat.com>
 
 	Update .tarball-version-related rules from coreutils.
 	* GNUmakefile: Support VPATH "make dist".  Namespace clean-up.
diff -pruN 4.6+git20120811-4/ChangeLog-2007 4.6.21+20171216ss6cdfd-1/ChangeLog-2007
--- 4.6+git20120811-4/ChangeLog-2007	2013-08-18 20:23:29.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/ChangeLog-2007	1970-01-01 00:00:00.000000000 +0000
@@ -1,699 +0,0 @@
-2007-08-18  Pedro J. Ruiz Lopez  <holzplatten@es.gnu.org>
-
-	* License upgrade to "GPL-3 or later".
-
-	* po/pl.po: new version of this file.
-
-2007-07-11  Jim Meyering  <jim@meyering.net>
-
-	Ensure that idutils.el's "Version:" comment stays up to date.
-	* Makefile.am (distcheck-hook): New rule.
-
-2007-07-10  Tom Tromey  <tromey@redhat.com>
-
-	Adjust idutils.el comments to work with package.el.
-	* lisp/idutils.el: Fix comments.
-	(gid): Add autoload comment.
-
-2007-06-26  Tom Tromey  <tromey@redhat.com>
-
-	Don't treat the last line in the gid buffer as a match.
-	* lisp/idutils.el (gid-mode-font-lock-keywords): Also match "finished".
-
-2007-06-19  Tom Tromey  <tromey@redhat.com>
-
-	* lisp/idutils.el: Require thingatpt.
-	(gid-mode-font-lock-keywords): New variable.
-	(gid-use-search-in-buffer-name): New variable.
-	(gid-mode): New mode.
-	(gid): Use compilation-start, thing-at-point.
-	(word-around-point): Removed.
-	Details in <http://thread.gmane.org/gmane.comp.gnu.idutils.bugs/70>.
-
-2007-02-19  Pedro J. Ruiz Lopez  <holzplatten@es.gnu.org>
-
-	* Upgraded gnulib.
-	* Upgraded gettext.
-
-	* lib/regex_internal.h: fix warnings about redefined cpp macros.
-
-2007-01-19  Jim Meyering  <jim@meyering.net>
-
-	temporary fix simply to avoid the infloop.
-	* libidu/scanners.c (get_token_lisp): Disable the code that
-	treats '[]' as part of a kawa identifier.  It could call ungetc
-	two or three times in a row.  One is the maximum.
-	* testsuite/infloop-kawa-el: New file.  Test for the above.
-	* testsuite/Makefile.am (TESTS): Add infloop-kawa-el.
-	(TESTS_ENVIRONMENT): Prepend build directory to PATH so that
-	invoking e.g., "mkid" runs the just-built version of the tool.
-
-2006-11-25  Claudio Fontana  <claudio@gnu.org>
-
-	* libidu/scanners.c (get_token_lisp): provide rough support for
-	  character constants.
-
-2006-10-19  Claudio Fontana  <claudio@gnu.org>
-
-	* libidu/scanners.c (get_token_lisp): (tiny) fix bug in double
-	  quoted string parsing (fix provided by Walter Sosa).
-
-2006-08-22  Claudio Fontana  <claudio@gnu.org>
-
-	* doc/idutils.texi: fix wrong example .emacs entry, where
-	  a nonexistent 'gid' lisp is loaded instead of 'idutils'.
-
-2006-08-05  Claudio Fontana  <claudio@gnu.org>
-
-	version 4.2 released.
-
-2006-07-22  Claudio Fontana  <claudio@gnu.org>
-
-	* configure.ac: add header checks for terminal-related stuff.
-	* configure.ac: add check for lstat, bumped to 4.2
-
-	* libidu/idfile.c: replace include sys/stat.h with lstat.h.
-	* libidu/scanners.c: likewise.
-	* libidu/walker.c: likewise.
-	* src/mkid.c: likewise.
-
-	* libidu/walker.c: provide replacement function for lstat
-	  in a somewhat convoluted way, using plain stat.
-
-2006-07-22  Claudio Fontana  <claudio@gnu.org>
-
-	* configure.ac: add check for sbrk
-
-	* src/mkid.c (get_process_heap): new function.
-	  Calls sbrk() if available, or NULL if unsupported.
-
-	* src/mkid.c (report_statistics): (nochange)
-	  the reported heap usage is 0+0 if sbrk is
-	  not available.
-
-2006-07-22  Claudio Fontana  <claudio@gnu.org>
-
-	upgraded gnulib.
-
-2006-07-22  Claudio Fontana  <claudio@gnu.org>
-
-	removed generated files from CVS
-
-	* src/lid.c (get_editor_argv): new function that
-	  tokenizes EDITOR environment variable.
-
-	* src/lid.c (report_edit): use get_editor_argv;
-	  some cleanup; set using_vi for vim too.
-
-2006-07-06  Claudio Fontana  <claudio@gnu.org>
-
-	* src/Makefile.in: regenerated.
-	* src/mkid.c: remove useless (and wrong) const.
-
-2006-06-26  Claudio Fontana  <claudio@gnu.org>
-
-	* libidu/walker.c (walk_flink): add missing #ifdef HAVE_LINK before
-	  calling hard-link specific code (patch #5165).
-
-	* libidu/scanners.c (get_token_perl): fix problem in perl support
-	  with comments and quotation.
-	  Patch appended to patch #2775 by Madhu Gogulapati.
-
-2006-03-12  Claudio Fontana  <claudio@gnu.org>
-
-	version 4.1 released.
-
-2006-03-05  Claudio Fontana  <claudio@gnu.org>
-
-	* src/lid.c::isnumber(): fixed bug in pattern recognition.
-	  A single 'l' or 'u' does not make a pattern a number.
-	  It must come after ciphers.
-
-	* src/lid.c::help_me(): add bug report string
-	* src/mkid.c: likewise
-	* src/xtokid.c: likewise
-	* src/fid.c: likewise
-	* src/fnid.c: likewise
-
-2006-02-15  Jim Meyering  <jim@meyering.net>
-
-	* lib/verify.h: New file, from gnulib.
-
-2006-02-15  Claudio Fontana  <claudio@gnu.org>
-
-	* libidu/scanners.c: integrated a lisp+java support patch,
-	  based on the original work by Edouard G. Parmelan
-
-2006-01-11  Claudio Fontana  <claudio@gnu.org>
-
-	* lib/fnmatch.c, lib/fnmatch_loop.c: included workaround for a
-	  possible gcc bug in handling multibyte char sequences.
-	  Fix by Paul Eggert <eggert@gnu.org>, problems reported by
-	  Nelson H. F. Beebe <beebe@math.utah.edu>
-
-	* src/mkid.c, src/lid.c: replace dirname() and basename() usage
-	  with dir_name() and base_name() to fix a portability problem
-	  spotted by Nelson H. F. Beebe <beebe@math.utah.edu>
-
-2006-01-08  Claudio Fontana  <claudio@gnu.org>
-
-	* src/mkid.c: fixed bad offtostr usage (now uses return value)
-
-2006-01-06  Claudio Fontana  <claudio@gnu.org>
-
-	* configure.ac: reverted change to "conditionally add -I ../intl to the
-	  CFLAGS to let all subdirs find the included libintl.h"
-	* m4/gettext.m4: offer a more general solution to the above problem,
-	  by automatically adding the internal intl directory to the CPPFLAGS
-	  when used.
-	* lib/regex_internal.h: apply workaround for buggy pgcc preprocessor
-	  handling large unsigned 64 bit values as signed, and thus breaking
-	  compilation. Fix by Paul Eggert <eggert@gnu.org>, catch by
-	  Nelson H. F. Beebe <beebe@math.utah.edu>
-
-	* distribute.sh: changed id-utils to idutils
-	* distribute-alpha.sh: likewise
-	* BLURB: likewise
-	* README-alpha: likewise
-
-	* configure.ac: changed bug report address to bug-idutils@gnu.org
-
-	* doc/id-utils.texi: renamed to doc/idutils.texi, and fixed content
-	  accordingly
-	* doc/Makefile.am: reflect filename change
-
-	* lisp/id-utils.el: renamed to lisp/idutils.el, and fixed content
-	  accordingly
-	* lisp/Makefile.am: reflect filename change
-
-	* po/*.po: replaced bug-id-utils@gnu.org with bug-idutils@gnu.org
-
-
-2005-12-27  Claudio Fontana  <claudio@gnu.org>
-
-	* README-alpha: added information about successful builds
-	* configure.ac: fixed unwanted change in bugs mailing list address
-	* configure.ac: moved development to version 4.1
-	* configure.ac: conditionally add -I ../intl to the CFLAGS,
-	  to let all subdirs find the included libintl.h
-
-	* m4/extra_dist.sh: added script to autogenerate extra dist Makefile.am
-	* src/Makefile.am: pass libgnu to the linker before and after libintl
-	  to solve mutual dependencies problems caused by gnulib modules
-	  getopt and regex, which include libintl.h
-
-	* lib/dirname.c, lib/dirname.h [new files]: added dirname module
-	* lib/basename.c [new file]: likewise
-	* lib/stripslash.c [new file]: likewise
-	* lib/Makefile.am: likewise (gnulib-generated)
-	* m4/dirname.m4, m4/dos.m4 [new files]: likewise
-
-	* libidu/idfile.c: add missing include directive for strsep.h
-	* libidu/scanners.c: likewise
-	* libidu/walker.c: likewise
-
-	* libidu/scanners.c: add missing include for alloca.h
-	* libidu/walker.c: likewise
-
-	* src/mkid.c: add include directive for dirname.h
-	* src/lid.c: likewise
-
-	* src/*.c, libidu/*.c: enforce <> for system includes or their gnulib
-	  replacements, and "" for program specific headers
-
-2005-12-24  Claudio Fontana  <claudio@gnu.org>
-
-	version 4.0 released.
-
-2005-12-15  Claudio Fontana  <claudio@gnu.org>
-	* src/mkid.c: tweak alloc-ed size of token signature to a minimum
-	  of 1 byte. Fixes assertion failure filed as savannah support request
-	  sr #104712.
-
-	* testsuite/consistency: added test case for this bug
-	* testsuite/single_file_token_bug.c [new file]: needed for new test
-	* testsuite/Makefile.am: add new file to distribution
-
-2005-12-11  Claudio Fontana  <claudio@gnu.org>
-	* libidu/scanners.c: Fixed signed/unsigned char* assignments by
-	  making both 'scanner_buffer' and 'id' unsigned char*.
-	  characters from scanner_buffer are first assigned to an int prior
-	  to checking with the class-macros;
-
-	* src/mkid.c, configure.ac, libidu/iduglobal.h:
-	  print an off_t value portably by using offtostr (gnulib)
-
-	* intl/*, po/*: updated to latest version
-
-2005-12-10  Claudio Fontana  <claudio@gnu.org>
-	* applied savannah patch 2775: include scanner for the perl language
-
-2005-11-01  Claudio Fontana  <claudio@gnu.org>
-	* libidu/scanners.c: applied (with changes) savannah patch 2702:
-	  Fix language options handling bugs, and removed redundant C options
-	  help.
-
-2005-05-31  Claudio Fontana  <sick_soul@users.sourceforge.net>
-	* configure.in: moved to configure.ac
-	* configure.ac (new file): rewritten using gnulib and new macros
-	* Makefile.am: all makefiles revisited
-
-	* lib/: removed everything and replaced with gnulib imports
-	* m4/: removed everything and replaced with gnulib imports
-
-	* i18n support updated to gettext 0.14.1
-	* po/fr.po: fixed broken headers. FRENCH TRANSLATOR MARKED UNKNOWN.
-	* intl/: updated - Did some nasty things to make libintl work in
-	  most circumstances
-	* libidu/iduglobal.h (new file): common definitions moved here
-	* *.c, *.h: updated to use gnulib functions, removed redundant
-	  definitions and checks
-	* *.c, *.h: reverted __P() macro introduction, and assume prototypes.
-	  Times are mature for that, and I follow gnulib in this.
-
-2000-06-06  Jim Meyering  <meyering@lucent.com>
-
-	* po/POTFILES.in: Add libidu/fnprint.c and remove libidu/xnls.h.
-
-	* mkinstalldirs: Update.
-	* missing: Update.
-
-	* depcomp: New file.
-	* lib/malloc.c: New file.
-	* lib/realloc.c: New file.
-
-	* configure.in: Require 2.14a.
-	Check for declaration of strsep.
-	* libidu/idfile.c: Declare strsep if necessary.
-	* libidu/scanners.c: Likewise.
-	* libidu/walker.c: Likewise.
-
-2000-04-26  Greg McGary  <gkm@gnu.org>
-
-	* lid.c (add_regexp_word_delimiters): Rename from
-	maybe_add_word_delimiters--action is now unconditional.
-	(query_literal_word): Call query_literal_substring if ignoring case.
-	(query_literal_prefix): Call query_regexp if ignoring case.
-	(query_regexp): Test delimiter_style before calling
-	add_regexp_word_delimiters.
-	(query_literal_substring): Add local var arg_length.
-	Handle word matches which can happen when ignoring case.
-	Add local var match.
-
-1999-04-10  Greg McGary  <gkm@gnu.org>
-
-	* walker.c (classify_link): Only return 0 for zero-length files.
-	Keep directories, no matter what their size.  DOS always
-	returns zero size for directories.
-	[From tbisp@uswest.net]
-
-1999-04-09  Greg McGary  <gkm@gnu.org>
-
-	* po/Makefile.in.in (DISTFILES): Remove ChangeLog.
-	* po/ChangeLog: Remove empty file.
-
-1999-04-08  Greg McGary  <gkm@gnu.org>
-
-	* libidu/idread.c (maybe_read_id_file): Add `b' for binary
-	to fopen mode string.  [From tbisp@uswest.net]
-	* src/lid.c (report_grep): Change name of gid_FILE to source_FILE.
-
-	* src/mkid.c (write_id_file): Complain if fclose fails.
-	[From jbb6@acpub.duke.edu]
-
-	* src/lid.c (limits.h): Include earlier to avoid RE_DUP_MAX
-	conflict. [From Erick.Branderhorst@asml.nl]
-	(search_flinkv): Bash terminating newline.  [From marc@snafu.org]
-	* lisp/elisp-comp: Import more recent version from automake.
-	* libidu/scanners.c (SCAN_CPP_DIRECTIVE): Tolerate
-	leading whitespace before first '#' [From rodneybrown@pmsc.com]
-	(get_token_asm, get_token_c): Move some common leading context
-	into SCAN_CPP_DIRECTIVE.
-
-	* po/pl.po, po/nl.po: Add files.
-	* configure.in (ALL_LINGUAS): Add pl & nl.
-
-1999-04-06  Greg McGary  <gkm@gnu.org>
-
-	* Version 3.2d released.
-
-	* libidu/idfile.h (largest_member_file): Add variable decl.
-	(MAX_LARGEST_MEMBER_FILE): Add constant.
-	* libidu/scanners.h (scanner_buffer): Add variable decl.
-	* libidu/scanners.c (scanner_buffer): Rename from id_0.
-	* libidu/walker.c (largest_member_file): Add veriable defn.
-	(walk_flink): Maintain largest_member_file.
-	Call print_member_file.
-	(maybe_get_member_file): Don't call print_member_file.
-	(classify_link): Return 0 if file size is zero.
-	* src/mkid.c (scan_files): Report size of largest file.
-	Cap scanner_buffer size at MAX_LARGEST_MEMBER_FILE.
-	Allocate scanner_buffer.
-	* src/xtokid.c (scan_files): Cap scanner_buffer size at
-	MAX_LARGEST_MEMBER_FILE.  Allocate scanner_buffer.
-
-1999-04-04  Greg McGary  <gkm@gnu.org>
-
-	* configure.in: Check for regcomp and compile lib/regex.c
-	if the system doesn't provide it.
-	* lisp/Makefile.am (lisp_LISP): Add variable.  Remove all
-	other obsolete contents.
-	* src/lid.c (search_flinkv): Replace `gets' with `fgets'.
-
-1999-04-03  Greg McGary  <gkm@gnu.org>
-
-	* Version 3.2c released.
-
-	* libidu/id-file.h (walker_verbose_flag): Add extern variable decl.
-	* libidu/scanners.c (SCAN_CPP_DIRECTIVE): Add macro.
-	(get_token_c, get_token_asm): Call SCAN_CPP_DIRECTIVE.
-	* libidu/walker.c (walker_verbose_flag): Add variable defn.
-	(print_member_file): Add function.
-	(maybe_get_member_file): Call print_member_file in verbose mode.
-	* src/mkid.c: Add coments.  (ceil_log_2): Add function.
-	(main): Handle 'V' option for extra verbosity.
-	(scan_files): Use MAX (1M, n*lg(n)*64) to estimate initial size
-	of token hash table.
-	(name_tokens, number_tokens, string_tokens, literal_tokens,
-	comment_tokens, occurrences, hits_length, tokens_length, output_length):
-	Change type from size_t to unsigned long.
-	(report_statistics): Fix printf formats.
-
-1999-03-29  Greg McGary  <gkm@gnu.org>
-
-	* Version 3.2b released.
-
-	* libidu/idfile.h (struct member_file) [mf_index]: Change
-	type to long.
-	* libidu/scanners.h (MAX_LEVELS): Remove constant.
-	(struct token) [tok_hits, tok_name]: Remove members.
-	[tok_hits_name]: Add member.
-	(TOKEN_HITS, TOKEN_NAME, OFFSETOF_TOKEN_NAME): Add macros.
-	* libidu/scanners.c (log_8_member_files): Add variable definition.
-	(get_token_c, get_token_asm, get_token_text): Use OFFSETOF_TOKEN_NAME.
-	* libidu/walker.c (mark_member_file_links) [new_index]: Change
-	variable type to long.
-	* src/idx.c (scan_member_file): Use TOKEN_NAME.
-	* src/mkid.c (ceil_log_8) Add function.
-	(current_hits_signature): Change variable type to (char *).
-	(main) [log_8_member_files]: Initialize new variable.
-	[current_hits_signature] Allocate storage.
-	(scan_member_file): Print member->mf_index as long.
-	(scan_member_file_1, write_id_file, token_hash_1, token_hash_2,
-	token_hash_cmp, token_qsort_cmp, summarize, write_hits):
-	use TOKEN_NAME & TOKEN_HITS.
-	(init_hits_signature, write_hits): Replace MAX_LEVELS
-	with log_8_member_files.
-	* src/xtokid.c (scan_member_file): Use TOKEN_NAME.
-
-	* libidu/idfile.h (vectorize_string) [delimiter_class]:
-	Declare as pointer to const.
-	* libidu/walker.c (append_strings_to_vector, vectorize_string)
-	[delimiter_class]: Declare as pointer to const.
-	(white_space): Declare as array of const.
-
-1999-03-28  Greg McGary  <gkm@gnu.org>
-
-	* libidu/hash.c (hash_insert): hash_insert_at no longer
-	returns old contents, but rather the new slot address.
-	(hash_insert_at): Return slot address of inserted item.
-	* libidu/walker.c (get_member_file): return member.
-	(get_link_from_dirent, get_link_from_string): Conform
-	to new hash_insert_at API, where return value is slot
-	address of newly inserted item.
-
-	* Makefile.am (AUTOMAKE_OPTIONS): Add macro.
-
-	* config.h.in (WITH_REGEX): Remove.
-	* configure.in (AM_WITH_REGEX): Remove.
-	* src/lid.c (rx.h): Remove #include.
-
-1999-02-11  Greg McGary  <gkm@gnu.org>
-
-	* src/lid.c (report_grep): Continue rather than return when
-	fopen fails.
-
-1999-01-31  Jim Meyering  <meyering@ascend.com>
-
-	* doc/Makefile.am (DISTCLEANFILES): Remove id-utils.cm.
-	* doc/id-utils.texi: Remove unused `@defcodeindex cm'.
-
-1999-01-28  Jim Meyering  <meyering@ascend.com>
-
-	* libidu/scanners.c (set_ushort_ctype): Use an unsigned char index.
-	(clear_ushort_ctype): Likewise.
-	(set_uchar_ctype): Likewise.
-	(clear_uchar_ctype): Likewise.
-	(id_0): Add `unsigned' to declaration of this file-scope static var.
-	(get_token_c): Add `unsigned' to declaration of `id'.
-	(get_token_asm): Likewise.
-	(get_token_text): Likewise.
-
-	* testsuite/Makefile.am (DISTCLEANFILES): Arrange to remove ID.
-	* libidu/Makefile.am (EXTRA_DIST): Arrange to distribute id-lang.map.
-	* lisp/Makefile.am (DISTCLEANFILES): Arrange to remove id-utils.elc.
-	* doc/Makefile.am (DISTCLEANFILES): Arrange to remove id-utils.cm
-	and id-utils.fl.
-
-1999-01-27  Jim Meyering  <meyering@ascend.com> (with some changes from gkm)
-
-	* Makefile.maint: New file.
-	* GNUmakefile: New file.
-
-	* lib/Makefile.am (AUTOMAKE_OPTIONS): Use ../src/ansi2knr.
-	* libidu/Makefile.am (AUTOMAKE_OPTIONS): Likewise.
-	(ansi2knr.c): Remove rule.
-
-	* src/ansi2knr.c: Import new version.
-	* src/ansi2knr.1: Likewise.
-
-	* lib/Makefile.am (EXTRA_DIST): Remove getopt.c and getopt1.c.
-
-	* configure.in: Require autoconf-2.13.
-	Remove some variables that now come with AM_INIT_AUTOMAKE.
-	Remove deprecated AM_MAINTAINER_MODE.
-	Use AC_PROG_INSTALL, not deprecated AM_PROG_INSTALL.
-	Use AM_FUNC_OBSTACK, not AC_REPLACE_OBSTACK.
-	Use AM_GNU_GETTEXT, not ud_GNU_GETTEXT/AC_LINK_FILES...
-	Define LIBOBJS for ansi2knr filtering rules.
-	(AC_OUTPUT): Add m4/Makefile.
-
-	* acconfig.h: Remove many #undefs, now that we're using autoconf-2.13's
-	3-arg form of the AC_DEFINE* macros.
-
-	* Makefile.am (SUBDIRS): Add m4.
-	(EXTRA_DIST): Add Makefile.maint GNUmakefile @README_ALPHA@.
-	(DISTCLEANFILES): Add intl/libintl.h.
-	(ACLOCAL_AMFLAGS): Define to `-I m4'
-
-	* m4/: New directory.
-
-1999-01-26  Greg McGary  <gkm@gnu.org>
-
-	* hash.h (struct hash_table) [ht_empty_slots]: Add struct member.
-	* hash.c (hash_init): Initialize ht_empty_slots.  Don't halve
-	ht_size.  (hash_find_slot) Return deleted slot, if available.
-	(hash_insert_at): Decrement ht_empty_slots if one is consumed.
-	Rehash if emtpy slots become too scarce.  (hash_free_items,
-	hash_deleted_item, hash_free): Re-initialize ht_empty_slots.
-	(hash_rehash): Don't double table size if rehashing only because
-	table is clogged with deleted slots.
-
-1998-11-20  Greg McGary  <gkm@gnu.org>
-
-	* libidu/fnprint.c (print_filenames): Move ALLOCA outside loop.
-	* libidu/walker.c (get_lang_args): Ditto.
-	* src/fnid.c (main): Ditto.
-	* src/lid.c (report_grep, search_flinkv): Ditto.
-	* src/mkid.c (scan_member_file): Consolidate two ALLOCA buffers
-	at inner scopes to a single buffer at an outer scope.
-
-1998-11-18  Greg McGary  <gkm@gnu.org>
-
-	* missing: Add file.
-
-	* configure.in, lib/Makefile.am, libidu/Makefile.am:
-	Conform macro names to automake-1.3 conventions.
-
-	* libidu/scanners.c (id_0): Increase size and make file static.
-
-Tue Aug  6 22:46:16 1996  Greg McGary  <gkm@g2>
-
-	* Version 3.2 released
-
-	* src/fid.c (get_file_index): rename shadowing local decl of
-	file_name.
-
-	* src/lid.c (report_edit): post decrement argv when splicing in
-	ed_arg_buffer.
-
-	* src/xtokid.c, libidu/idfile.h: #include "xstring.h" to avoid
-	redeclaration of basename/dirname error.
-
-Wed Jul 17 18:06:18 1996  Greg McGary  <gkm@g2>
-
-	* Version 3.1 released
-
-Sun Jun 30 13:06:18 1996  Greg McGary  <gkm@g2>
-
-	* src/lid.c (get_query_func): remove unreachable return stmt.
-
-	* libidu/hash.h (HASH_VACANT): cast item to (void *) for
-	comparison.
-
-	* libidu/walker.c (append_strings_to_vector): check length of
-	vector_0, not vector.
-
-	* libidu/scanners.c (get_token_c, get_token_asm, get_token_text):
-	cast return type of obstack_finish.
-
-	* src/lid.c (radix, delimiter_style, pattern_style, key_style,
-	result_style, key_style, result_style) libidu/idfile.h
-	(separator_style): remove trailing comma from enum list.
-
-	* src/xtokid.c: removed include of string.h.
-
-	* src/lid.c (savetty, restoretty, linetty, chartty): define stub
-	versions if no UNIXy tty control is available.
-
-Wed Jun 12 22:15:12 1996  Greg McGary  <gkm@g2>
-
-	* src/lid.c, src/mkid.c, src/fnid.c (main): change default
-	argv variables from char* to char[]
-
-Mon Jun 10 15:29:19 1996  Greg McGary  <gkm@g2>
-
-	* src/mkid.c (main): -v implies -s; handle the case where there's
-	nothing to do.
-	* libidu/walker.c (get_lang_args): test lang_args_default before
-	dereference.
-
-Sun Jun  9 23:46:53 1996  Greg McGary  <gkm@g2>
-
-	* lid.c (get_radix, otoi, dtoi, xtoi): Test *str before passing it
-	to strchr--fixes query_number bug.
-
-Sat Feb 25 16:23:49 1995  Greg McGary  <gkm@magilla.cichlid.com>
-
-	* Version 3.0.8 released.
-
-	* configure.in, acconfig.h, Makefile.in (TOUCH, PREV_VERSION):
-	Added.  (check): Export PATH.  (TAGS): Eliminate unnecessary `-t'
-	option to etags.  (mostlyclean, clean, distclean,
-	maintainer-clean, install): Bring into conformance with GNU
-	standards.  (AWK, OLD_PATCH_LEVEL, PATCH_LEVEL, SIZEOF_LONG,
-	bump-major, bump-minor, bump-patch): Deleted.  (ANSI2KNR,
-	ansi2knr): Added.  (depend): Fixed to support ansi2knr.
-
-	* configure.in: Update stamp-h inside AC_OUTPUT.
-
-	* acconfig.h: Work harder to force #undef of HAVE_TERMIOS_H for	NeXT.
-	(__P): Added.
-
-	* bitops.c, fid.c, filenames.c, idfile.c, idx.c, iid.c, lid.c,
-	misc.c, mkid.c, scanners.c, token.c: Changed "config.h" to <config.h>.
-
-	* acconfig.h, bitops.c, bitops.h, fid.c, filenames.h, idfile.c,
-	idfile.h, idx.c, iid.c, lid.c, misc.h, mkid.c, scanners.c,
-	scanners.h, token.h: Use __P around function prototype decls.
-
-	* acconfig.h, idfile.h, idfile.c (intmin32_t, uintmin32_t):
-	Deleted in favor of long and unsigned long.
-
-	* idtest: Fixed bugs (Thanks to Francois Pinard).
-
-	* mkid.c (write_idfile): Delete erroneous remnant of old file name
-	indexing scheme (Reported by Dave Wiggins).  (assert_hits):
-	Simplified & fixed erroneous assertion.
-
-	* lid.c (grep_id): Treat '\0' as end-of-line along with '\n'.
-
-	* strerror.c (strerror): Protoize defn.
-
-Mon Feb 20 16:18:47 1995  Greg McGary  <gkm@magilla.cichlid.com>
-
-	* Version 3.0.7 released.
-
-	* scanners.c (scanners, suffixes, init_scanners, get_scanner,
-	set_scan_args, get_lang_name, get_filter, get_suffix): Fixed
-	boundary conditions.
-
-	* mkid.c (make_sibling_summary): Don't realloc if kid's sum_tokens
-	is already large enough.  (scan_1_file): Ignore blank tokens.
-	Avoid division by 0 (pinard@iro.umontreal.ca).  (write_idfile):
-	Moved assertions & qsort to top.  Don't check for blank tokens--it
-	can't happen.  (rehash): Prefix "Rehashing..." with "\n\t".
-
-	* idtest: Test fid more rigorously.
-
-	* idfile.c (init_idfile): Don't increment i for non-file args.
-
-	* Makefile.in (DEFS, DIST_SHAR, AWK, bump-patch, bump-minor,
-	bump-major, shar): Added.  (.PRECIOUS): Added configure, config.h
-	config.h.in.
-
-	* configure.in (DEPEND): Fixed portability (kazusi-m@is.aist-nara.ac.jp).
-	(AC_CHECK_FUNCS(basename, dirname)): Added.
-	* misc.h, misc.c: Made decl/defn of basename, dirname conditional.
-
-
-Sun Feb 19 19:21:09 1995  Thomas Neumann  <tom@smart.ruhr.de>
-
-	* configure.in: Check for <sgtty.h>, not <sgttyb.h>.
-	* accconfig.h: Disbale HAVE_TERMIOS_H for NeXT,
-	if HAVE_SGTTY_H is present.
-	* lid.c: Depend on HAVE_SGTTY_H, not HAVE_SGTTYB_H.
-	(savetty): ANSI'fy arglist declaration.
-
-Sat Feb 18 21:44:39 1995  Greg McGary  <gkm@magilla.cichlid.com>
-
-	* Version 3.0.6 released.
-
-	* Makefile.in, accconfig.h, mkid.c: Revised & simplified package
-	name & version macros.
-
-	* Makefile.in (DIST_MISC_FILES): Added version.texi, stamp-vti.
-	(TAGS): Fixed.  (config.status): Removed dependency on config.cache.
-
-	* acconfig.h: Added #ifndef _config_h_ ... #endif around file.
-	(SIZEOF_INT, SIZEOF_CHAR, SIZEOF_SHORT, uint8_t, uint16_t,
-	uint32_t, int32_t): Deleted.  (SIZEOF_LONG): Changed typedef name
-	to intmin32_t and uintmin32_t; all uses changed.
-	* configure.in (AC_CHECK_SIZEOF (int, short, char)): Deleted.
-	* idfile.h (struct idhead): Dropped uint8_t, uint16_t,
-	uint32_t, int32_t, added intmin32_t & uintmin32_t.
-	* idfile.c (io_idhead, io_write, io_read): Use constants to express
-	integer sizes for I/O on struct idhead.
-
-	* idtest, Makefile.in (stamp-vti): Dumbed-down shell code for portability.
-
-	* lid.c (enum radix): Deleted trailing comma.
-
-	* scanners.c (ctype_c, ctype_asm, ctype_text): Made unsigned.
-
-Thu Feb 16 23:55:44 EST 1995  Greg McGary  <gkm@magilla.cichlid.com>
-
-	* Version 3.0.5 released.
-
-	* iid.y (main): Eliminate useless Do1 variable.
-
-	* filenames.c (kshgetwd): Conditionally use getcwd or getwd.
-
-	* acconfig.h: Added typedefs of uint8_t, uint16_t, uint32_t, int32_t.
-	* idfile.h (struct idhead), idfile.c (io_read, io_write): Use
-	uint8_t, uint16_t, uint32_t, int32_t.
-
-	* lid.c (savetty, restoretty, linetty, chartty): Handle POSIX
-	termios properly.  (HAVE_SYS_IOCTL_H): #include <sys/ioctl.h> if
-	!HAVE_TERMIOS_H.
-
-	* configure.in (OLD_PATCH_LEVEL, MAJOR_VERSION, MINOR_VERSION,
-	FULL_VERSION, AC_CHECK_SIZEOF(int, long, short, char),
-	AC_CHECK_HEADERS(regex.h), AC_CHECK_FUNCS(regcomp regcmp): Added.
-
-	* mkdirhier: Added.
-
-	* Makefile.in (DIST_MISC_FILES): Added ChangeLog.  (depend):
-	$(DEPEND) and Makefile are now .PRECIOUS.  (dist-dir-links):
-	Added.  (check, install, uninstall): Fixed.  (install): Use
-	mkdirhier.
diff -pruN 4.6+git20120811-4/configure 4.6.21+20171216ss6cdfd-1/configure
--- 4.6+git20120811-4/configure	2013-07-07 21:39:22.000000000 +0000
+++ 4.6.21+20171216ss6cdfd-1/configure	2017-12-17 00:27:12.000000000 +0000
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68.136-a1a00 for idutils 4.6.
+# Generated by GNU Autoconf 2.69 for idutils 4.6.21-6cdfd.
 #
 # Report bugs to <bug-idutils@gnu.org>.
 #
@@ -192,7 +192,8 @@ if ( set x; as_fn_ret_success y && test
 else
   exitcode=1; echo positional parameters were not saved.
 fi
-test x\$exitcode = x0 || exit 1"
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
@@ -358,6 +359,14 @@ $as_echo X"$as_dir" |
 
 
 } # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
@@ -479,6 +488,10 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   chmod +x "$as_me.lineno" ||
     { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
   # Don't try to exec as it changes $[0], causing all sort of problems
   # (the dirname of $[0] is not the place where we might find the
   # original and so on.  Autoconf is especially sensitive to this).
@@ -534,28 +547,8 @@ else
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -587,8 +580,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='idutils'
 PACKAGE_TARNAME='idutils'
-PACKAGE_VERSION='4.6'
-PACKAGE_STRING='idutils 4.6'
+PACKAGE_VERSION='4.6.21-6cdfd'
+PACKAGE_STRING='idutils 4.6.21-6cdfd'
 PACKAGE_BUGREPORT='bug-idutils@gnu.org'
 PACKAGE_URL=''
 
@@ -661,28 +654,17 @@ GETTEXT_MACRO_VERSION
 USE_NLS
 EMACSLOADPATH
 EMACS
+WARN_CFLAGS
 WERROR_CFLAGS
 LIBTESTS_LIBDEPS
 LIBGNU_LTLIBDEPS
 LIBGNU_LIBDEPS
 YIELD_LIB
 abs_aux_dir
-LTLIBMULTITHREAD
-LIBMULTITHREAD
-LTLIBTHREAD
-LIBTHREAD
-LIBPTH_PREFIX
-LTLIBPTH
-LIBPTH
+GL_GENERATE_STDALIGN_H_FALSE
+GL_GENERATE_STDALIGN_H_TRUE
+STDALIGN_H
 INTL_MACOSX_LIBS
-NEXT_AS_FIRST_DIRECTIVE_LOCALE_H
-NEXT_LOCALE_H
-HAVE_XLOCALE_H
-REPLACE_DUPLOCALE
-REPLACE_SETLOCALE
-HAVE_DUPLOCALE
-GNULIB_DUPLOCALE
-GNULIB_SETLOCALE
 NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H
 NEXT_INTTYPES_H
 UINT64_MAX_EQ_ULONG_MAX
@@ -691,6 +673,7 @@ PRIPTR_PREFIX
 PRI_MACROS_BROKEN
 INT64_MAX_EQ_LONG_MAX
 INT32_MAX_LT_INTMAX_MAX
+REPLACE_STRTOUMAX
 REPLACE_STRTOIMAX
 HAVE_DECL_STRTOUMAX
 HAVE_DECL_STRTOIMAX
@@ -700,11 +683,14 @@ GNULIB_STRTOUMAX
 GNULIB_STRTOIMAX
 GNULIB_IMAXDIV
 GNULIB_IMAXABS
+NEXT_AS_FIRST_DIRECTIVE_CTYPE_H
+NEXT_CTYPE_H
+HAVE_ISBLANK
+GNULIB_ISBLANK
 LOCALE_TR_UTF8
 gltests_WITNESS
 NEXT_AS_FIRST_DIRECTIVE_WCHAR_H
 NEXT_WCHAR_H
-WARN_CFLAGS
 LIBUNISTRING_COMPILE_UNIWIDTH_WIDTH_FALSE
 LIBUNISTRING_COMPILE_UNIWIDTH_WIDTH_TRUE
 LIBUNISTRING_UNIWIDTH_H
@@ -712,11 +698,14 @@ LIBUNISTRING_UNITYPES_H
 HAVE_UNISTD_H
 NEXT_AS_FIRST_DIRECTIVE_UNISTD_H
 NEXT_UNISTD_H
+UNISTD_H_DEFINES_STRUCT_TIMESPEC
 PTHREAD_H_DEFINES_STRUCT_TIMESPEC
 SYS_TIME_H_DEFINES_STRUCT_TIMESPEC
 TIME_H_DEFINES_STRUCT_TIMESPEC
 NEXT_AS_FIRST_DIRECTIVE_TIME_H
 NEXT_TIME_H
+REPLACE_LOCALTIME
+REPLACE_GMTIME
 REPLACE_TIMEGM
 REPLACE_NANOSLEEP
 REPLACE_MKTIME
@@ -725,15 +714,12 @@ HAVE_TIMEGM
 HAVE_STRPTIME
 HAVE_NANOSLEEP
 HAVE_DECL_LOCALTIME_R
+GNULIB_TIME_RZ
 GNULIB_TIME_R
 GNULIB_TIMEGM
 GNULIB_STRPTIME
 GNULIB_NANOSLEEP
 GNULIB_MKTIME
-NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H
-NEXT_SYS_TYPES_H
-NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H
-NEXT_SYS_STAT_H
 NEXT_AS_FIRST_DIRECTIVE_SYS_IOCTL_H
 NEXT_SYS_IOCTL_H
 HAVE_SYS_IOCTL_H
@@ -753,6 +739,9 @@ NEXT_STDIO_H
 GL_GENERATE_STDINT_H_FALSE
 GL_GENERATE_STDINT_H_TRUE
 STDINT_H
+HAVE_SYS_INTTYPES_H
+HAVE_SYS_BITYPES_H
+HAVE_C99_STDINT_H
 WINT_T_SUFFIX
 WCHAR_T_SUFFIX
 SIG_ATOMIC_T_SUFFIX
@@ -766,8 +755,6 @@ BITSIZEOF_WCHAR_T
 BITSIZEOF_SIG_ATOMIC_T
 BITSIZEOF_SIZE_T
 BITSIZEOF_PTRDIFF_T
-HAVE_SYS_BITYPES_H
-HAVE_SYS_INTTYPES_H
 HAVE_STDINT_H
 NEXT_AS_FIRST_DIRECTIVE_STDINT_H
 NEXT_STDINT_H
@@ -776,13 +763,6 @@ HAVE_INTTYPES_H
 HAVE_WCHAR_H
 HAVE_UNSIGNED_LONG_LONG_INT
 HAVE_LONG_LONG_INT
-NEXT_AS_FIRST_DIRECTIVE_STDDEF_H
-NEXT_STDDEF_H
-GL_GENERATE_STDDEF_H_FALSE
-GL_GENERATE_STDDEF_H_TRUE
-STDDEF_H
-HAVE_WCHAR_T
-REPLACE_NULL
 HAVE__BOOL
 GL_GENERATE_STDBOOL_H_FALSE
 GL_GENERATE_STDBOOL_H_TRUE
@@ -869,8 +849,40 @@ LOCALE_ZH_CN
 LOCALE_JA
 NEXT_AS_FIRST_DIRECTIVE_MATH_H
 NEXT_MATH_H
+SED
+LTLIBMULTITHREAD
+LIBMULTITHREAD
+LTLIBTHREAD
+LIBTHREAD
+LIBPTH_PREFIX
+LTLIBPTH
+LIBPTH
+NEXT_AS_FIRST_DIRECTIVE_LOCALE_H
+NEXT_LOCALE_H
+HAVE_XLOCALE_H
+NEXT_AS_FIRST_DIRECTIVE_STDDEF_H
+NEXT_STDDEF_H
+GL_GENERATE_STDDEF_H_FALSE
+GL_GENERATE_STDDEF_H_TRUE
+STDDEF_H
+HAVE_WCHAR_T
+HAVE_MAX_ALIGN_T
+REPLACE_NULL
+REPLACE_STRUCT_LCONV
+REPLACE_DUPLOCALE
+REPLACE_SETLOCALE
+REPLACE_LOCALECONV
+HAVE_DUPLOCALE
+GNULIB_DUPLOCALE
+GNULIB_SETLOCALE
+GNULIB_LOCALECONV
 LOCALCHARSET_TESTS_ENVIRONMENT
 GLIBC21
+GL_GENERATE_LIMITS_H_FALSE
+GL_GENERATE_LIMITS_H_TRUE
+LIMITS_H
+NEXT_AS_FIRST_DIRECTIVE_LIMITS_H
+NEXT_LIMITS_H
 HAVE_LANGINFO_YESEXPR
 HAVE_LANGINFO_ERA
 HAVE_LANGINFO_T_FMT_AMPM
@@ -899,6 +911,15 @@ GNULIB_WCTYPE
 GNULIB_ISWBLANK
 GNU_MAKE_FALSE
 GNU_MAKE_TRUE
+NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H
+NEXT_SYS_TIME_H
+REPLACE_STRUCT_TIMEVAL
+REPLACE_GETTIMEOFDAY
+HAVE_TIMEZONE_T
+HAVE_SYS_TIME_H
+HAVE_STRUCT_TIMEVAL
+HAVE_GETTIMEOFDAY
+GNULIB_GETTIMEOFDAY
 LTLIBINTL
 LIBINTL
 GNULIB_GL_UNISTD_H_GETOPT
@@ -906,6 +927,9 @@ GETOPT_H
 HAVE_GETOPT_H
 NEXT_AS_FIRST_DIRECTIVE_GETOPT_H
 NEXT_GETOPT_H
+WINDOWS_64_BIT_ST_SIZE
+NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H
+NEXT_SYS_STAT_H
 REPLACE_UTIMENSAT
 REPLACE_STAT
 REPLACE_MKNOD
@@ -939,32 +963,84 @@ GNULIB_FUTIMENS
 GNULIB_FSTATAT
 GNULIB_FSTAT
 GNULIB_FCHMODAT
+WINDOWS_64_BIT_OFF_T
+NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H
+NEXT_SYS_TYPES_H
 REPLACE_TRUNCL
 REPLACE_TRUNCF
 REPLACE_TRUNC
+REPLACE_TANHF
+REPLACE_TANF
+REPLACE_SQRTL
+REPLACE_SQRTF
+REPLACE_SINHF
+REPLACE_SINF
 REPLACE_SIGNBIT_USING_GCC
 REPLACE_SIGNBIT
 REPLACE_ROUNDL
 REPLACE_ROUNDF
 REPLACE_ROUND
+REPLACE_REMAINDERL
+REPLACE_REMAINDERF
+REPLACE_REMAINDER
 REPLACE_NAN
+REPLACE_MODFL
+REPLACE_MODFF
+REPLACE_MODF
+REPLACE_LOGBL
+REPLACE_LOGBF
+REPLACE_LOGB
+REPLACE_LOG2L
+REPLACE_LOG2F
+REPLACE_LOG2
+REPLACE_LOG1PL
+REPLACE_LOG1PF
+REPLACE_LOG1P
+REPLACE_LOG10L
+REPLACE_LOG10F
+REPLACE_LOG10
+REPLACE_LOGL
+REPLACE_LOGF
+REPLACE_LOG
 REPLACE_LDEXPL
 REPLACE_ISNAN
 REPLACE_ISINF
 REPLACE_ISFINITE
+REPLACE_ILOGBF
+REPLACE_ILOGB
+REPLACE_HYPOTL
+REPLACE_HYPOTF
+REPLACE_HYPOT
 REPLACE_HUGE_VAL
 REPLACE_FREXPL
 REPLACE_FREXP
 REPLACE_FREXPF
+REPLACE_FMODL
+REPLACE_FMODF
+REPLACE_FMOD
 REPLACE_FMAL
 REPLACE_FMAF
 REPLACE_FMA
 REPLACE_FLOORL
 REPLACE_FLOORF
 REPLACE_FLOOR
+REPLACE_FABSL
+REPLACE_EXP2L
+REPLACE_EXP2
+REPLACE_EXPM1F
+REPLACE_EXPM1
+REPLACE_EXPF
+REPLACE_COSHF
+REPLACE_COSF
 REPLACE_CEILL
 REPLACE_CEILF
 REPLACE_CEIL
+REPLACE_CBRTL
+REPLACE_CBRTF
+REPLACE_ATAN2F
+REPLACE_ATANF
+REPLACE_ASINF
+REPLACE_ACOSF
 HAVE_DECL_TRUNCL
 HAVE_DECL_TRUNCF
 HAVE_DECL_TRUNC
@@ -974,16 +1050,30 @@ HAVE_DECL_SINL
 HAVE_DECL_ROUNDL
 HAVE_DECL_ROUNDF
 HAVE_DECL_ROUND
-HAVE_DECL_LOGL
+HAVE_DECL_RINTF
+HAVE_DECL_REMAINDERL
+HAVE_DECL_REMAINDER
 HAVE_DECL_LOGB
+HAVE_DECL_LOG2L
+HAVE_DECL_LOG2F
+HAVE_DECL_LOG2
+HAVE_DECL_LOG10L
+HAVE_DECL_LOGL
 HAVE_DECL_LDEXPL
 HAVE_DECL_FREXPL
 HAVE_DECL_FLOORL
 HAVE_DECL_FLOORF
+HAVE_DECL_EXPM1L
+HAVE_DECL_EXP2L
+HAVE_DECL_EXP2F
+HAVE_DECL_EXP2
 HAVE_DECL_EXPL
 HAVE_DECL_COSL
+HAVE_DECL_COPYSIGNF
 HAVE_DECL_CEILL
 HAVE_DECL_CEILF
+HAVE_DECL_CBRTL
+HAVE_DECL_CBRTF
 HAVE_DECL_ATANL
 HAVE_DECL_ASINL
 HAVE_DECL_ACOSL
@@ -996,10 +1086,18 @@ HAVE_SINHF
 HAVE_SINL
 HAVE_SINF
 HAVE_RINTL
-HAVE_RINTF
 HAVE_RINT
+HAVE_REMAINDERF
+HAVE_REMAINDER
 HAVE_POWF
+HAVE_MODFL
 HAVE_MODFF
+HAVE_LOGBL
+HAVE_LOGBF
+HAVE_LOG1PL
+HAVE_LOG1PF
+HAVE_LOG1P
+HAVE_LOG10L
 HAVE_LOG10F
 HAVE_LOGL
 HAVE_LOGF
@@ -1007,20 +1105,31 @@ HAVE_LDEXPF
 HAVE_ISNANL
 HAVE_ISNAND
 HAVE_ISNANF
+HAVE_ILOGBL
+HAVE_ILOGBF
+HAVE_ILOGB
+HAVE_HYPOTL
+HAVE_HYPOTF
 HAVE_FREXPF
+HAVE_FMODL
 HAVE_FMODF
 HAVE_FMAL
 HAVE_FMAF
 HAVE_FMA
+HAVE_FABSL
 HAVE_FABSF
+HAVE_EXPM1F
+HAVE_EXPM1
 HAVE_EXPL
 HAVE_EXPF
 HAVE_COSHF
 HAVE_COSL
 HAVE_COSF
 HAVE_COPYSIGNL
-HAVE_COPYSIGNF
 HAVE_COPYSIGN
+HAVE_CBRTL
+HAVE_CBRTF
+HAVE_CBRT
 HAVE_ATAN2F
 HAVE_ATANL
 HAVE_ATANF
@@ -1046,12 +1155,28 @@ GNULIB_ROUND
 GNULIB_RINTL
 GNULIB_RINTF
 GNULIB_RINT
+GNULIB_REMAINDERL
+GNULIB_REMAINDERF
+GNULIB_REMAINDER
 GNULIB_POWF
+GNULIB_MODFL
 GNULIB_MODFF
+GNULIB_MODF
+GNULIB_LOGBL
+GNULIB_LOGBF
+GNULIB_LOGB
+GNULIB_LOG2L
+GNULIB_LOG2F
+GNULIB_LOG2
+GNULIB_LOG1PL
+GNULIB_LOG1PF
+GNULIB_LOG1P
+GNULIB_LOG10L
 GNULIB_LOG10F
+GNULIB_LOG10
 GNULIB_LOGL
 GNULIB_LOGF
-GNULIB_LOGB
+GNULIB_LOG
 GNULIB_LDEXPL
 GNULIB_LDEXPF
 GNULIB_ISNANL
@@ -1060,17 +1185,32 @@ GNULIB_ISNANF
 GNULIB_ISNAN
 GNULIB_ISINF
 GNULIB_ISFINITE
+GNULIB_ILOGBL
+GNULIB_ILOGBF
+GNULIB_ILOGB
+GNULIB_HYPOTL
+GNULIB_HYPOTF
+GNULIB_HYPOT
 GNULIB_FREXPL
 GNULIB_FREXP
 GNULIB_FREXPF
+GNULIB_FMODL
 GNULIB_FMODF
+GNULIB_FMOD
 GNULIB_FMAL
 GNULIB_FMAF
 GNULIB_FMA
 GNULIB_FLOORL
 GNULIB_FLOORF
 GNULIB_FLOOR
+GNULIB_FABSL
 GNULIB_FABSF
+GNULIB_EXPM1L
+GNULIB_EXPM1F
+GNULIB_EXPM1
+GNULIB_EXP2L
+GNULIB_EXP2F
+GNULIB_EXP2
 GNULIB_EXPL
 GNULIB_EXPF
 GNULIB_COSHF
@@ -1082,6 +1222,9 @@ GNULIB_COPYSIGN
 GNULIB_CEILL
 GNULIB_CEILF
 GNULIB_CEIL
+GNULIB_CBRTL
+GNULIB_CBRTF
+GNULIB_CBRT
 GNULIB_ATAN2F
 GNULIB_ATANL
 GNULIB_ATANF
@@ -1090,6 +1233,7 @@ GNULIB_ASINF
 GNULIB_ACOSL
 GNULIB_ACOSF
 HAVE_FEATURES_H
+GNULIB_OVERRIDES_WINT_T
 APPLE_UNIVERSAL_BUILD
 HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
 GL_GENERATE_FNMATCH_H_FALSE
@@ -1178,7 +1322,6 @@ GNULIB_PERROR
 GNULIB_PCLOSE
 GNULIB_OBSTACK_PRINTF_POSIX
 GNULIB_OBSTACK_PRINTF
-GNULIB_GETS
 GNULIB_GETLINE
 GNULIB_GETDELIM
 GNULIB_GETCHAR
@@ -1233,6 +1376,7 @@ PRAGMA_SYSTEM_HEADER
 INCLUDE_NEXT_AS_FIRST_DIRECTIVE
 INCLUDE_NEXT
 pkglibexecdir
+runstatedir
 lispdir
 REPLACE_FDOPENDIR
 REPLACE_DIRFD
@@ -1268,9 +1412,11 @@ REPLACE_USLEEP
 REPLACE_UNLINKAT
 REPLACE_UNLINK
 REPLACE_TTYNAME_R
+REPLACE_SYMLINKAT
 REPLACE_SYMLINK
 REPLACE_SLEEP
 REPLACE_RMDIR
+REPLACE_READLINKAT
 REPLACE_READLINK
 REPLACE_READ
 REPLACE_PWRITE
@@ -1283,8 +1429,10 @@ REPLACE_ISATTY
 REPLACE_GETPAGESIZE
 REPLACE_GETGROUPS
 REPLACE_GETLOGIN_R
+REPLACE_GETDTABLESIZE
 REPLACE_GETDOMAINNAME
 REPLACE_GETCWD
+REPLACE_FTRUNCATE
 REPLACE_FCHOWNAT
 REPLACE_DUP2
 REPLACE_DUP
@@ -1297,6 +1445,7 @@ HAVE_DECL_SETHOSTNAME
 HAVE_DECL_GETUSERSHELL
 HAVE_DECL_GETPAGESIZE
 HAVE_DECL_GETLOGIN_R
+HAVE_DECL_GETLOGIN
 HAVE_DECL_GETDOMAINNAME
 HAVE_DECL_FDATASYNC
 HAVE_DECL_FCHDIR
@@ -1387,8 +1536,10 @@ REPLACE_SETENV
 REPLACE_REALPATH
 REPLACE_REALLOC
 REPLACE_RANDOM_R
+REPLACE_QSORT_R
 REPLACE_PUTENV
 REPLACE_PTSNAME_R
+REPLACE_PTSNAME
 REPLACE_MKSTEMP
 REPLACE_MBTOWC
 REPLACE_MALLOC
@@ -1403,11 +1554,13 @@ HAVE_STRTOLL
 HAVE_STRTOD
 HAVE_DECL_SETENV
 HAVE_SETENV
+HAVE_SECURE_GETENV
 HAVE_RPMATCH
 HAVE_REALPATH
 HAVE_RANDOM_R
 HAVE_RANDOM_H
 HAVE_RANDOM
+HAVE_QSORT_R
 HAVE_PTSNAME_R
 HAVE_PTSNAME
 HAVE_POSIX_OPENPT
@@ -1430,11 +1583,13 @@ GNULIB_STRTOULL
 GNULIB_STRTOLL
 GNULIB_STRTOD
 GNULIB_SETENV
+GNULIB_SECURE_GETENV
 GNULIB_RPMATCH
 GNULIB_REALPATH
 GNULIB_REALLOC_POSIX
 GNULIB_RANDOM_R
 GNULIB_RANDOM
+GNULIB_QSORT_R
 GNULIB_PUTENV
 GNULIB_PTSNAME_R
 GNULIB_PTSNAME
@@ -1561,6 +1716,7 @@ build_cpu
 build
 RANLIB
 ARFLAGS
+ac_ct_AR
 AR
 EGREP
 GREP
@@ -1656,10 +1812,10 @@ enable_silent_rules
 enable_dependency_tracking
 enable_largefile
 enable_threads
-with_included_regex
 with_gnu_ld
 enable_rpath
 with_libpth_prefix
+with_included_regex
 enable_gcc_warnings
 with_lispdir
 enable_nls
@@ -2132,8 +2288,6 @@ target=$target_alias
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
-    If a cross compiler is detected then cross compile mode will be used" >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -2219,7 +2373,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures idutils 4.6 to adapt to many kinds of systems.
+\`configure' configures idutils 4.6.21-6cdfd to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -2289,7 +2443,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of idutils 4.6:";;
+     short | recursive ) echo "Configuration of idutils 4.6.21-6cdfd:";;
    esac
   cat <<\_ACEOF
 
@@ -2297,8 +2451,8 @@ Optional Features:
   --disable-option-checking  ignore unrecognized --enable/--with options
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
-  --enable-silent-rules   less verbose build output (undo: `make V=1')
-  --disable-silent-rules  verbose build output (undo: `make V=0')
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
   --enable-dependency-tracking
                           do not reject slow dependency extractors
   --disable-dependency-tracking
@@ -2314,13 +2468,13 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-libpth-prefix[=DIR]  search for libpth in DIR/include and DIR/lib
+  --without-libpth-prefix     don't search for libpth in includedir and libdir
   --without-included-regex
                           don't compile regex; this is the default on systems
                           with recent-enough versions of the GNU C Library
                           (use with caution on other systems).
-  --with-gnu-ld           assume the C compiler uses GNU ld default=no
-  --with-libpth-prefix[=DIR]  search for libpth in DIR/include and DIR/lib
-  --without-libpth-prefix     don't search for libpth in includedir and libdir
   --with-lispdir          override the default lisp directory
   --with-libiconv-prefix[=DIR]  search for libiconv in DIR/include and DIR/lib
   --without-libiconv-prefix     don't search for libiconv in includedir and libdir
@@ -2406,8 +2560,8 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-idutils configure 4.6
-generated by GNU Autoconf 2.68.136-a1a00
+idutils configure 4.6.21-6cdfd
+generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
@@ -2686,7 +2840,7 @@ $as_echo "$ac_try_echo"; } >&5
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
+	 test -x conftest$ac_exeext
        }; then :
   ac_retval=0
 else
@@ -3054,12 +3208,69 @@ rm -f conftest.val
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_compute_int
+
+# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
+# ----------------------------------------------------
+# Tries to find if the field MEMBER exists in type AGGR, after including
+# INCLUDES, setting cache variable VAR accordingly.
+ac_fn_c_check_member ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+$as_echo_n "checking for $2.$3... " >&6; }
+if eval \${$4+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (sizeof ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  eval "$4=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$4
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_member
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by idutils $as_me 4.6, which was
-generated by GNU Autoconf 2.68.136-a1a00.  Invocation command line was
+It was created by idutils $as_me 4.6.21-6cdfd, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
 
@@ -3358,22 +3569,28 @@ as_fn_append ac_func_list " wmempcpy"
 as_fn_append ac_header_list " wctype.h"
 gl_fnmatch_required=GNU
 as_fn_append ac_header_list " stdio_ext.h"
-as_fn_append ac_func_list " __fpending"
 as_fn_append ac_func_list " vasnprintf"
 as_fn_append ac_header_list " features.h"
 as_fn_append ac_func_list " snprintf"
 as_fn_append ac_func_list " fpurge"
 as_fn_append ac_func_list " __fpurge"
 as_fn_append ac_func_list " __freading"
-as_fn_append ac_func_list " alarm"
+as_fn_append ac_func_list " __fseterr"
+as_fn_append ac_header_list " sys/stat.h"
 as_fn_append ac_func_list " fstatat"
 as_fn_append ac_func_list " getdelim"
 as_fn_append ac_func_list " getdtablesize"
 gl_getopt_required=GNU
 as_fn_append ac_header_list " getopt.h"
+as_fn_append ac_func_list " getprogname"
+as_fn_append ac_func_list " getexecname"
+as_fn_append ac_header_list " sys/time.h"
+as_fn_append ac_func_list " gettimeofday"
 as_fn_append ac_func_list " iswcntrl"
 as_fn_append ac_func_list " iswblank"
 as_fn_append ac_header_list " langinfo.h"
+as_fn_append ac_header_list " limits.h"
+as_fn_append ac_header_list " xlocale.h"
 as_fn_append ac_func_list " lstat"
 as_fn_append ac_header_list " math.h"
 as_fn_append ac_func_list " mbsinit"
@@ -3383,26 +3600,23 @@ as_fn_append ac_func_list " mprotect"
 as_fn_append ac_func_list " nl_langinfo"
 as_fn_append ac_func_list " openat"
 gl_printf_safe=yes
-as_fn_append ac_func_list " wcscoll"
+as_fn_append ac_header_list " malloc.h"
 as_fn_append ac_header_list " wchar.h"
 as_fn_append ac_header_list " stdint.h"
 as_fn_append ac_func_list " strdup"
-as_fn_append ac_func_list " strerror_r"
-as_fn_append ac_func_list " __xpg_strerror_r"
 as_fn_append ac_header_list " strings.h"
 as_fn_append ac_func_list " strndup"
 as_fn_append ac_header_list " sys/ioctl.h"
-as_fn_append ac_header_list " sys/stat.h"
-as_fn_append ac_header_list " sys/time.h"
 as_fn_append ac_func_list " pipe"
 as_fn_append ac_func_list " wcrtomb"
 as_fn_append ac_func_list " wcwidth"
 as_fn_append ac_func_list " getrlimit"
 as_fn_append ac_func_list " setrlimit"
 as_fn_append ac_header_list " inttypes.h"
-as_fn_append ac_header_list " xlocale.h"
 as_fn_append ac_func_list " newlocale"
 as_fn_append ac_func_list " setenv"
+as_fn_append ac_func_list " sleep"
+as_fn_append ac_func_list " usleep"
 as_fn_append ac_func_list " mquery"
 as_fn_append ac_func_list " wctob"
 gt_needs="$gt_needs need-ngettext"
@@ -3504,7 +3718,7 @@ ac_config_sub="$SHELL $ac_aux_dir/config
 ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 
-am__api_version='1.11a'
+am__api_version='1.15'
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -3543,7 +3757,7 @@ case $as_dir/ in #((
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
 	  if test $ac_prog = install &&
 	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # AIX install.  It has an incompatible calling convention.
@@ -3611,10 +3825,10 @@ case `pwd` in
 esac
 case $srcdir in
   *[\\\"\#\$\&\'\`$am_lf\ \	]*)
-    as_fn_error $? "unsafe srcdir value: \`$srcdir'" "$LINENO" 5;;
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
 esac
 
-# Do `set' in a subshell so we don't clobber the current shell's
+# Do 'set' in a subshell so we don't clobber the current shell's
 # arguments.  Must try -L first in case configure is actually a
 # symlink; some systems play weird games with the mod time of symlinks
 # (eg FreeBSD returns the mod time of the symlink's containing
@@ -3676,8 +3890,8 @@ test "$program_suffix" != NONE &&
 ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
 program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 
-# expand $ac_aux_dir to an absolute path
-am_aux_dir=`cd $ac_aux_dir && pwd`
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
 
 if test x"${MISSING+set}" != xset; then
   case $am_aux_dir in
@@ -3688,15 +3902,15 @@ if test x"${MISSING+set}" != xset; then
   esac
 fi
 # Use eval to expand $SHELL
-if eval "$MISSING --run true"; then
-  am_missing_run="$MISSING --run "
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
 else
   am_missing_run=
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`missing' script is too old or missing" >&5
-$as_echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
 fi
 
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
@@ -3705,10 +3919,10 @@ if test x"${install_sh}" != xset; then
   esac
 fi
 
-# Installed binaries are usually stripped using `strip' when the user
-# run `make install-strip'.  However `strip' might not be the right
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
 # tool to use in cross-compilation environments, therefore Automake
-# will honor the `STRIP' environment variable to overrule this program.
+# will honor the 'STRIP' environment variable to overrule this program.
 if test "$cross_compiling" != no; then
   if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
@@ -3727,7 +3941,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_STRIP="${ac_tool_prefix}strip"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -3767,7 +3981,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_STRIP="strip"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -3818,7 +4032,7 @@ do
   test -z "$as_dir" && as_dir=.
     for ac_prog in mkdir gmkdir; do
 	 for ac_exec_ext in '' $ac_executable_extensions; do
-	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
 	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
 	     'mkdir (GNU coreutils) '* | \
 	     'mkdir (coreutils) '* | \
@@ -3847,13 +4061,6 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
 $as_echo "$MKDIR_P" >&6; }
 
-
-mkdir_p="$MKDIR_P"
-case $mkdir_p in
-  [\\/$]* | ?:[\\/]*) ;;
-  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
-esac
-
 for ac_prog in gawk mawk nawk awk
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
@@ -3872,7 +4079,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -3936,6 +4143,45 @@ else
 fi
 rmdir .tst 2>/dev/null
 
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
 if test "`cd $srcdir && pwd`" != "`pwd`"; then
   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
   # is not polluted with repeated "-I."
@@ -3958,7 +4204,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='idutils'
- VERSION='4.6'
+ VERSION='4.6.21-6cdfd'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -3986,18 +4232,71 @@ AUTOHEADER=${AUTOHEADER-"${am_missing_ru
 
 MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
-# We need awk for the "check" target.  The system "awk" is bad on
-# some platforms.
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
 # Always define AMTAR for backward compatibility.  Yes, it's still used
 # in the wild :-(  We should find a proper way to deprecate it ...
 AMTAR='$${TAR-tar}'
 
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
 am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
 
 
 
 
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <http://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+  fi
+fi
+
 # Check whether --enable-silent-rules was given.
 if test "${enable_silent_rules+set}" = set; then :
   enableval=$enable_silent_rules;
@@ -4065,7 +4364,7 @@ am__quote=
 _am_result=none
 # First try GNU make style include.
 echo "include confinc" > confmf
-# Ignore all kinds of additional output from `make'.
+# Ignore all kinds of additional output from 'make'.
 case `$am_make -s -f confmf 2> /dev/null` in #(
 *the\ am__doit\ target*)
   am__include=include
@@ -4131,7 +4430,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4171,7 +4470,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4224,7 +4523,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4265,7 +4564,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
@@ -4323,7 +4622,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4367,7 +4666,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4898,6 +5197,65 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS con
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
 depcc="$CC"   am_compiler_list=
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
@@ -4909,8 +5267,8 @@ else
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
-  # making a dummy file named `D' -- because `-MD' means `put the output
-  # in D'.
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
   rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
@@ -4945,16 +5303,16 @@ else
     : > sub/conftest.c
     for i in 1 2 3 4 5 6; do
       echo '#include "conftst'$i'.h"' >> sub/conftest.c
-      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
-      # Solaris 8's {/usr,}/bin/sh.
-      touch sub/conftst$i.h
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
     done
     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 
-    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
     # mode.  It turns out that the SunPro C++ compiler does not properly
-    # handle `-M -o', and we need to detect this.  Also, some Intel
-    # versions had trouble with output in subdirs
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
     am__obj=sub/conftest.${OBJEXT-o}
     am__minus_obj="-o $am__obj"
     case $depmode in
@@ -4963,8 +5321,8 @@ else
       test "$am__universal" = false || continue
       ;;
     nosideeffect)
-      # after this tag, mechanisms are not by side-effect, so they'll
-      # only be used when explicitly requested
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
       if test "x$enable_dependency_tracking" = xyes; then
 	continue
       else
@@ -4972,7 +5330,7 @@ else
       fi
       ;;
     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
-      # This compiler won't grok `-c -o', but also, the minuso test has
+      # This compiler won't grok '-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
       am__obj=conftest.${OBJEXT-o}
@@ -5318,131 +5676,6 @@ $as_echo "none needed" >&6; } ;; #(
 $as_echo "$ac_cv_prog_cc_stdc" >&6; } ;;
 esac
 
-if test "x$CC" != xcc; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC and cc understand -c and -o together" >&5
-$as_echo_n "checking whether $CC and cc understand -c and -o together... " >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cc understands -c and -o together" >&5
-$as_echo_n "checking whether cc understands -c and -o together... " >&6; }
-fi
-set dummy $CC; ac_cc=`$as_echo "$2" |
-		      sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'`
-if eval \${ac_cv_prog_cc_${ac_cc}_c_o+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-# Make sure it works both with $CC and with simple cc.
-# We do the test twice because some compilers refuse to overwrite an
-# existing .o file with -o, though they will create one.
-ac_try='$CC -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
-rm -f conftest2.*
-if { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } &&
-   test -f conftest2.$ac_objext && { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; };
-then
-  eval ac_cv_prog_cc_${ac_cc}_c_o=yes
-  if test "x$CC" != xcc; then
-    # Test first that cc exists at all.
-    if { ac_try='cc -c conftest.$ac_ext >&5'
-  { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-      ac_try='cc -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
-      rm -f conftest2.*
-      if { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } &&
-	 test -f conftest2.$ac_objext && { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; };
-      then
-	# cc works too.
-	:
-      else
-	# cc exists but doesn't like -o.
-	eval ac_cv_prog_cc_${ac_cc}_c_o=no
-      fi
-    fi
-  fi
-else
-  eval ac_cv_prog_cc_${ac_cc}_c_o=no
-fi
-rm -f core conftest*
-
-fi
-if eval test \$ac_cv_prog_cc_${ac_cc}_c_o = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-
-$as_echo "#define NO_MINUS_C_MINUS_O 1" >>confdefs.h
-
-fi
-
-# FIXME: we rely on the cache variable name because
-# there is no other way.
-set dummy $CC
-am_cc=`echo $2 | sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'`
-eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
-if test "$am_t" != yes; then
-   # Losing compiler, so override with the script.
-   # FIXME: It is wrong to rewrite CC.
-   # But if we don't then we get into trouble of one sort or another.
-   # A longer-term fix would be to have automake use am__CC in this case,
-   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
-   CC="$am_aux_dir/compile $CC"
-fi
-
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
 $as_echo_n "checking whether ln -s works... " >&6; }
@@ -5610,7 +5843,7 @@ do
     for ac_prog in grep ggrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+      as_fn_executable_p "$ac_path_GREP" || continue
 # Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
 case `"$ac_path_GREP" --version 2>&1` in
@@ -5676,7 +5909,7 @@ do
     for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+      as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
 case `"$ac_path_EGREP" --version 2>&1` in
@@ -5724,154 +5957,588 @@ $as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
 
+int
+main ()
+{
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Minix Amsterdam compiler" >&5
-$as_echo_n "checking for Minix Amsterdam compiler... " >&6; }
-if ${gl_cv_c_amsterdam_compiler+:} false; then :
-  $as_echo_n "(cached) " >&6
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
 else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-#ifdef __ACK__
-Amsterdam
-#endif
+#include <string.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "Amsterdam" >/dev/null 2>&1; then :
-  gl_cv_c_amsterdam_compiler=yes
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
 else
-  gl_cv_c_amsterdam_compiler=no
+  ac_cv_header_stdc=no
 fi
 rm -f conftest*
 
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
 
+else
+  ac_cv_header_stdc=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_c_amsterdam_compiler" >&5
-$as_echo "$gl_cv_c_amsterdam_compiler" >&6; }
-  if test -z "$AR"; then
-    if test $gl_cv_c_amsterdam_compiler = yes; then
-      AR='cc -c.a'
-      if test -z "$ARFLAGS"; then
-        ARFLAGS='-o'
-      fi
-    else
-                  if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
 else
-  if test -n "$AR"; then
-  ac_cv_prog_AR="$AR" # Let the user override the test.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
 else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_AR="${ac_tool_prefix}ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
 fi
 fi
-AR=$ac_cv_prog_AR
-if test -n "$AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
 fi
 
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
 
 fi
-if test -z "$ac_cv_prog_AR"; then
-  ac_ct_AR=$AR
-  # Extract the first word of "ar", so it can be a program name with args.
-set dummy ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_AR+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_AR"; then
-  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_AR="ar"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
+
 done
-  done
-IFS=$as_save_IFS
 
-fi
-fi
-ac_ct_AR=$ac_cv_prog_ac_ct_AR
-if test -n "$ac_ct_AR"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
 
-  if test "x$ac_ct_AR" = x; then
-    AR="ar"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    AR=$ac_ct_AR
-  fi
+
+  ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
+if test "x$ac_cv_header_minix_config_h" = xyes; then :
+  MINIX=yes
 else
-  AR="$ac_cv_prog_AR"
+  MINIX=
 fi
 
-      if test -z "$ARFLAGS"; then
-        ARFLAGS='cru'
-      fi
-    fi
-  else
-    if test -z "$ARFLAGS"; then
-      ARFLAGS='cru'
-    fi
-  fi
 
+  if test "$MINIX" = yes; then
 
-  if test -z "$RANLIB"; then
-    if test $gl_cv_c_amsterdam_compiler = yes; then
-      RANLIB=':'
-    else
-            if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_RANLIB+:} false; then :
+$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
+
+
+$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
+
+
+$as_echo "#define _MINIX 1" >>confdefs.h
+
+
+$as_echo "#define _NETBSD_SOURCE 1" >>confdefs.h
+
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
+$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
+if ${ac_cv_safe_to_define___extensions__+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#         define __EXTENSIONS__ 1
+          $ac_includes_default
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_safe_to_define___extensions__=yes
+else
+  ac_cv_safe_to_define___extensions__=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
+$as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
+  test $ac_cv_safe_to_define___extensions__ = yes &&
+    $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
+
+  $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _DARWIN_C_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_IEC_60559_ATTRIBS_EXT__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_IEC_60559_BFP_EXT__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_IEC_60559_DFP_EXT__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_IEC_60559_FUNCS_EXT__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_IEC_60559_TYPES_EXT__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_LIB_EXT2__ 1" >>confdefs.h
+
+  $as_echo "#define __STDC_WANT_MATH_SPEC_FUNCS__ 1" >>confdefs.h
+
+  $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether _XOPEN_SOURCE should be defined" >&5
+$as_echo_n "checking whether _XOPEN_SOURCE should be defined... " >&6; }
+if ${ac_cv_should_define__xopen_source+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_should_define__xopen_source=no
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+          #include <wchar.h>
+          mbstate_t x;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+             #define _XOPEN_SOURCE 500
+             #include <wchar.h>
+             mbstate_t x;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_should_define__xopen_source=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_should_define__xopen_source" >&5
+$as_echo "$ac_cv_should_define__xopen_source" >&6; }
+  test $ac_cv_should_define__xopen_source = yes &&
+    $as_echo "#define _XOPEN_SOURCE 500" >>confdefs.h
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Minix Amsterdam compiler" >&5
+$as_echo_n "checking for Minix Amsterdam compiler... " >&6; }
+if ${gl_cv_c_amsterdam_compiler+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef __ACK__
+Amsterdam
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "Amsterdam" >/dev/null 2>&1; then :
+  gl_cv_c_amsterdam_compiler=yes
+else
+  gl_cv_c_amsterdam_compiler=no
+fi
+rm -f conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_c_amsterdam_compiler" >&5
+$as_echo "$gl_cv_c_amsterdam_compiler" >&6; }
+
+      if test $gl_cv_c_amsterdam_compiler = yes; then
+    if test -z "$AR"; then
+      AR='cc -c.a'
+    fi
+    if test -z "$ARFLAGS"; then
+      ARFLAGS='-o'
+    fi
+  else
+                                        if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar lib "link -lib"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar lib "link -lib"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the archiver ($AR) interface" >&5
+$as_echo_n "checking the archiver ($AR) interface... " >&6; }
+if ${am_cv_ar_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+   am_cv_ar_interface=ar
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int some_variable = 0;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
+  (eval $am_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test "$ac_status" -eq 0; then
+        am_cv_ar_interface=ar
+      else
+        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&5'
+        { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
+  (eval $am_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+        if test "$ac_status" -eq 0; then
+          am_cv_ar_interface=lib
+        else
+          am_cv_ar_interface=unknown
+        fi
+      fi
+      rm -f conftest.lib libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_ar_interface" >&5
+$as_echo "$am_cv_ar_interface" >&6; }
+
+case $am_cv_ar_interface in
+ar)
+  ;;
+lib)
+  # Microsoft lib, so override with the ar-lib wrapper script.
+  # FIXME: It is wrong to rewrite AR.
+  # But if we don't then we get into trouble of one sort or another.
+  # A longer-term fix would be to have automake use am__AR in this case,
+  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
+  # similar.
+  AR="$am_aux_dir/ar-lib $AR"
+  ;;
+unknown)
+  as_fn_error $? "could not determine $AR interface" "$LINENO" 5
+  ;;
+esac
+
+  fi
+
+        if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR="ar"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+  if test -z "$ARFLAGS"; then
+    ARFLAGS='cr'
+  fi
+
+
+
+  if test -z "$RANLIB"; then
+    if test $gl_cv_c_amsterdam_compiler = yes; then
+      RANLIB=':'
+    else
+            if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$RANLIB"; then
@@ -5883,7 +6550,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5923,7 +6590,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6033,281 +6700,73 @@ IFS=$ac_save_IFS
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGEFILE_SOURCE value needed for large files" >&5
+$as_echo_n "checking for _LARGEFILE_SOURCE value needed for large files... " >&6; }
+if ${ac_cv_sys_largefile_source+:} false; then :
   $as_echo_n "(cached) " >&6
 else
+  while :; do
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
+#include <sys/types.h> /* for off_t */
+     #include <stdio.h>
 int
 main ()
 {
-
+int (*fp) (FILE *, off_t, int) = fseeko;
+     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_sys_largefile_source=no; break
 fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+#define _LARGEFILE_SOURCE 1
+#include <sys/types.h> /* for off_t */
+     #include <stdio.h>
 int
 main ()
 {
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
+int (*fp) (FILE *, off_t, int) = fseeko;
+     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
+  ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_sys_largefile_source=1; break
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  ac_cv_sys_largefile_source=unknown
+  break
+done
 fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_source" >&5
+$as_echo "$ac_cv_sys_largefile_source" >&6; }
+case $ac_cv_sys_largefile_source in #(
+  no | unknown) ;;
+  *)
+cat >>confdefs.h <<_ACEOF
+#define _LARGEFILE_SOURCE $ac_cv_sys_largefile_source
 _ACEOF
+;;
+esac
+rm -rf conftest*
 
-fi
+# We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
+# in glibc 2.1.3, but that breaks too many other things.
+# If you want fseeko and ftello with glibc, upgrade to a fixed glibc.
+if test $ac_cv_sys_largefile_source != unknown; then
 
-done
+$as_echo "#define HAVE_FSEEKO 1" >>confdefs.h
 
-
-
-
-
-  ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
-if test "x$ac_cv_header_minix_config_h" = xyes; then :
-  MINIX=yes
-else
-  MINIX=
-fi
-
-
-  if test "$MINIX" = yes; then
-
-$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
-
-
-$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
-
-
-$as_echo "#define _MINIX 1" >>confdefs.h
-
-  fi
-
-        case "$host_os" in
-    hpux*)
-
-$as_echo "#define _XOPEN_SOURCE 500" >>confdefs.h
-
-      ;;
-  esac
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
-$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
-if ${ac_cv_safe_to_define___extensions__+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#         define __EXTENSIONS__ 1
-          $ac_includes_default
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_safe_to_define___extensions__=yes
-else
-  ac_cv_safe_to_define___extensions__=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
-$as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
-  test $ac_cv_safe_to_define___extensions__ = yes &&
-    $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
-
-  $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
-
-  $as_echo "#define _DARWIN_C_SOURCE 1" >>confdefs.h
-
-  $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
-
-  $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
-
-  $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGEFILE_SOURCE value needed for large files" >&5
-$as_echo_n "checking for _LARGEFILE_SOURCE value needed for large files... " >&6; }
-if ${ac_cv_sys_largefile_source+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  while :; do
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h> /* for off_t */
-     #include <stdio.h>
-int
-main ()
-{
-int (*fp) (FILE *, off_t, int) = fseeko;
-     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_sys_largefile_source=no; break
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#define _LARGEFILE_SOURCE 1
-#include <sys/types.h> /* for off_t */
-     #include <stdio.h>
-int
-main ()
-{
-int (*fp) (FILE *, off_t, int) = fseeko;
-     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_sys_largefile_source=1; break
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-  ac_cv_sys_largefile_source=unknown
-  break
-done
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_source" >&5
-$as_echo "$ac_cv_sys_largefile_source" >&6; }
-case $ac_cv_sys_largefile_source in #(
-  no | unknown) ;;
-  *)
-cat >>confdefs.h <<_ACEOF
-#define _LARGEFILE_SOURCE $ac_cv_sys_largefile_source
-_ACEOF
-;;
-esac
-rm -rf conftest*
-
-# We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
-# in glibc 2.1.3, but that breaks too many other things.
-# If you want fseeko and ftello with glibc, upgrade to a fixed glibc.
-if test $ac_cv_sys_largefile_source != unknown; then
-
-$as_echo "#define HAVE_FSEEKO 1" >>confdefs.h
-
-fi
+fi
 
 
 
@@ -6322,9 +6781,11 @@ fi
       # <http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/0600____.HTM>
       if test -n "$GCC"; then
         # GCC has the option -mieee.
+        # For full IEEE compliance (rarely needed), use option -mieee-with-inexact.
         CPPFLAGS="$CPPFLAGS -mieee"
       else
-        # Compaq (ex-DEC) C has the option -ieee.
+        # Compaq (ex-DEC) C has the option -ieee, equivalent to -ieee_with_no_inexact.
+        # For full IEEE compliance (rarely needed), use option -ieee_with_inexact.
         CPPFLAGS="$CPPFLAGS -ieee"
       fi
       ;;
@@ -6534,6 +6995,8 @@ rm -rf conftest*
   fi
 
 
+$as_echo "#define _DARWIN_USE_64_BIT_INODE 1" >>confdefs.h
+
 fi
 
 
@@ -6586,7 +7049,14 @@ fi
 
 
 
+  # Pre-early section.
+
+
+
 
+  # Code from module absolute-header:
+  # Code from module alignof:
+  # Code from module alignof-tests:
   # Code from module alloca:
   # Code from module alloca-opt:
   # Code from module alloca-opt-tests:
@@ -6595,6 +7065,7 @@ fi
   # Code from module argmatch-tests:
   # Code from module argv-iter:
   # Code from module argv-iter-tests:
+  # Code from module assure:
   # Code from module at-internal:
   # Code from module autobuild:
 
@@ -6636,6 +7107,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module bitrotate-tests:
   # Code from module btowc:
   # Code from module btowc-tests:
+  # Code from module builtin-expect:
   # Code from module c-ctype:
   # Code from module c-ctype-tests:
   # Code from module c-strcase:
@@ -6656,6 +7128,8 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module closedir:
   # Code from module closeout:
   # Code from module configmake:
+  # Code from module ctype:
+  # Code from module ctype-tests:
   # Code from module d-ino:
   # Code from module dirent:
   # Code from module dirent-tests:
@@ -6679,7 +7153,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module exclude-tests:
   # Code from module exitfail:
   # Code from module extensions:
-
+  # Code from module extern-inline:
   # Code from module fchdir:
   # Code from module fchdir-tests:
   # Code from module fcntl:
@@ -6698,6 +7172,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module fgetc-tests:
   # Code from module filename:
   # Code from module filenamecat-lgpl:
+  # Code from module flexmember:
   # Code from module float:
   # Code from module float-tests:
   # Code from module fnmatch:
@@ -6743,6 +7218,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module fwrite-tests:
   # Code from module gendocs:
   # Code from module get-rusage-as:
+  # Code from module get-rusage-as-tests:
   # Code from module getcwd:
   # Code from module getcwd-lgpl:
   # Code from module getcwd-lgpl-tests:
@@ -6752,16 +7228,22 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module getdtablesize:
   # Code from module getdtablesize-tests:
   # Code from module getopt-gnu:
+  # Code from module getopt-gnu-tests:
   # Code from module getopt-posix:
   # Code from module getopt-posix-tests:
   # Code from module getpagesize:
+  # Code from module getprogname:
+  # Code from module getprogname-tests:
   # Code from module gettext-h:
+  # Code from module gettimeofday:
+  # Code from module gettimeofday-tests:
   # Code from module git-version-gen:
   # Code from module gitlog-to-changelog:
   # Code from module gnu-make:
   # Code from module gnu-web-doc-update:
   # Code from module gnumakefile:
   # Code from module gnupload:
+  # Code from module hard-locale:
   # Code from module hash:
   # Code from module hash-pjw:
   # Code from module hash-tests:
@@ -6769,7 +7251,6 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module ignore-value:
   # Code from module ignore-value-tests:
   # Code from module include_next:
-  # Code from module inline:
   # Code from module intprops:
   # Code from module intprops-tests:
   # Code from module inttostr:
@@ -6777,6 +7258,8 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module inttypes:
   # Code from module inttypes-incomplete:
   # Code from module inttypes-tests:
+  # Code from module isblank:
+  # Code from module isblank-tests:
   # Code from module isnand-nolibm:
   # Code from module isnand-nolibm-tests:
   # Code from module isnanf-nolibm:
@@ -6789,9 +7272,13 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module langinfo-tests:
   # Code from module largefile:
 
+  # Code from module limits-h:
+  # Code from module limits-h-tests:
   # Code from module localcharset:
   # Code from module locale:
   # Code from module locale-tests:
+  # Code from module localeconv:
+  # Code from module localeconv-tests:
   # Code from module localename:
   # Code from module localename-tests:
   # Code from module lock:
@@ -6826,6 +7313,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module mempcpy:
   # Code from module memrchr:
   # Code from module memrchr-tests:
+  # Code from module minmax:
   # Code from module msvc-inval:
   # Code from module msvc-nothrow:
   # Code from module multiarch:
@@ -6864,6 +7352,7 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module realloc-gnu-tests:
   # Code from module realloc-posix:
   # Code from module regex:
+  # Code from module regex-tests:
   # Code from module rewinddir:
   # Code from module same-inode:
   # Code from module save-cwd:
@@ -6874,9 +7363,12 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module signbit:
   # Code from module signbit-tests:
   # Code from module size_max:
+  # Code from module sleep:
+  # Code from module sleep-tests:
   # Code from module snippet/_Noreturn:
   # Code from module snippet/arg-nonnull:
   # Code from module snippet/c++defs:
+  # Code from module snippet/unused-parameter:
   # Code from module snippet/warn-on-use:
   # Code from module snprintf:
   # Code from module snprintf-tests:
@@ -6886,6 +7378,8 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module stat:
   # Code from module stat-macros:
   # Code from module stat-tests:
+  # Code from module stdalign:
+  # Code from module stdalign-tests:
   # Code from module stdbool:
   # Code from module stdbool-tests:
   # Code from module stddef:
@@ -6920,6 +7414,8 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module sys_ioctl-tests:
   # Code from module sys_stat:
   # Code from module sys_stat-tests:
+  # Code from module sys_time:
+  # Code from module sys_time-tests:
   # Code from module sys_types:
   # Code from module sys_types-tests:
   # Code from module test-framework-sh:
@@ -6945,6 +7441,8 @@ $as_echo "$as_me: autobuild timestamp...
   # Code from module update-copyright:
   # Code from module update-copyright-tests:
   # Code from module useless-if-before-free:
+  # Code from module usleep:
+  # Code from module usleep-tests:
   # Code from module vasnprintf:
   # Code from module vasnprintf-tests:
   # Code from module vc-list-files:
@@ -7095,8 +7593,8 @@ ALLOCA=\${LIBOBJDIR}alloca.$ac_objext
 $as_echo "#define C_ALLOCA 1" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether 'alloca.c' needs Cray hooks" >&5
-$as_echo_n "checking whether 'alloca.c' needs Cray hooks... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs Cray hooks" >&5
+$as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; }
 if ${ac_cv_os_cray+:} false; then :
   $as_echo_n "(cached) " >&6
 else
@@ -7183,48 +7681,6 @@ _ACEOF
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
-$as_echo_n "checking for inline... " >&6; }
-if ${ac_cv_c_inline+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_c_inline=no
-for ac_kw in inline __inline__ __inline; do
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifndef __cplusplus
-typedef int foo_t;
-static $ac_kw foo_t static_foo () {return 0; }
-$ac_kw foo_t foo () {return 0; }
-#endif
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_c_inline=$ac_kw
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  test "$ac_cv_c_inline" != no && break
-done
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
-$as_echo "$ac_cv_c_inline" >&6; }
-
-case $ac_cv_c_inline in
-  inline | yes) ;;
-  *)
-    case $ac_cv_c_inline in
-      no) ac_val=;;
-      *) ac_val=$ac_cv_c_inline;;
-    esac
-    cat >>confdefs.h <<_ACEOF
-#ifndef __cplusplus
-#define inline $ac_val
-#endif
-_ACEOF
-    ;;
-esac
-
 
   GNULIB_BTOWC=0;
   GNULIB_WCTOB=0;
@@ -7341,12 +7797,13 @@ extern int zero (void);
 int main () { return zero(); }
 
 _ACEOF
+                              save_ac_compile="$ac_compile"
+     ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/`
      if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-       mv conftest.$ac_objext conftest1.$ac_objext
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -7362,12 +7819,12 @@ _ACEOF
 int zero (void) { return 0; }
 
 _ACEOF
+              ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/`
        if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-         mv conftest.$ac_objext conftest2.$ac_objext
          if $CC -o conftest$ac_exeext $CFLAGS $LDFLAGS conftest1.$ac_objext conftest2.$ac_objext $LIBS >&5 2>&1; then
            :
          else
@@ -7375,6 +7832,7 @@ _ACEOF
          fi
        fi
      fi
+     ac_compile="$save_ac_compile"
      rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
 
 fi
@@ -7469,7 +7927,7 @@ int main () {
 #if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
   /* On native Windows, setlocale(category, "") looks at the system settings,
      not at the environment variables.  Also, when an encoding suffix such
-     as ".65001" or ".54936" is speficied, it succeeds but sets the LC_CTYPE
+     as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
      category of the locale to "C".  */
   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
@@ -7478,7 +7936,7 @@ int main () {
   if (setlocale (LC_ALL, "") == NULL) return 1;
 #endif
   /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
-     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
+     On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
      On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
      succeeds but then nl_langinfo(CODESET) is "646". In this situation,
@@ -7537,7 +7995,7 @@ _ACEOF
           ;;
         *)
           # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
-          # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
+          # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
           # configure script would override the LC_ALL setting. Likewise for
           # LC_CTYPE, which is also set at the beginning of the configure script.
           # Test for the usual locale name.
@@ -7597,11 +8055,13 @@ $as_echo "$gt_cv_locale_fr" >&6; }
   GNULIB_PTSNAME=0;
   GNULIB_PTSNAME_R=0;
   GNULIB_PUTENV=0;
+  GNULIB_QSORT_R=0;
   GNULIB_RANDOM=0;
   GNULIB_RANDOM_R=0;
   GNULIB_REALLOC_POSIX=0;
   GNULIB_REALPATH=0;
   GNULIB_RPMATCH=0;
+  GNULIB_SECURE_GETENV=0;
   GNULIB_SETENV=0;
   GNULIB_STRTOD=0;
   GNULIB_STRTOLL=0;
@@ -7624,11 +8084,13 @@ $as_echo "$gt_cv_locale_fr" >&6; }
   HAVE_POSIX_OPENPT=1;
   HAVE_PTSNAME=1;
   HAVE_PTSNAME_R=1;
+  HAVE_QSORT_R=1;
   HAVE_RANDOM=1;
   HAVE_RANDOM_H=1;
   HAVE_RANDOM_R=1;
   HAVE_REALPATH=1;
   HAVE_RPMATCH=1;
+  HAVE_SECURE_GETENV=1;
   HAVE_SETENV=1;
   HAVE_DECL_SETENV=1;
   HAVE_STRTOD=1;
@@ -7643,8 +8105,10 @@ $as_echo "$gt_cv_locale_fr" >&6; }
   REPLACE_MALLOC=0;
   REPLACE_MBTOWC=0;
   REPLACE_MKSTEMP=0;
+  REPLACE_PTSNAME=0;
   REPLACE_PTSNAME_R=0;
   REPLACE_PUTENV=0;
+  REPLACE_QSORT_R=0;
   REPLACE_RANDOM_R=0;
   REPLACE_REALLOC=0;
   REPLACE_REALPATH=0;
@@ -7769,6 +8233,7 @@ $as_echo "$gl_cv_func_malloc_posix" >&6;
   HAVE_DECL_FCHDIR=1;
   HAVE_DECL_FDATASYNC=1;
   HAVE_DECL_GETDOMAINNAME=1;
+  HAVE_DECL_GETLOGIN=1;
   HAVE_DECL_GETLOGIN_R=1;
   HAVE_DECL_GETPAGESIZE=1;
   HAVE_DECL_GETUSERSHELL=1;
@@ -7781,8 +8246,10 @@ $as_echo "$gl_cv_func_malloc_posix" >&6;
   REPLACE_DUP=0;
   REPLACE_DUP2=0;
   REPLACE_FCHOWNAT=0;
+  REPLACE_FTRUNCATE=0;
   REPLACE_GETCWD=0;
   REPLACE_GETDOMAINNAME=0;
+  REPLACE_GETDTABLESIZE=0;
   REPLACE_GETLOGIN_R=0;
   REPLACE_GETGROUPS=0;
   REPLACE_GETPAGESIZE=0;
@@ -7795,9 +8262,11 @@ $as_echo "$gl_cv_func_malloc_posix" >&6;
   REPLACE_PWRITE=0;
   REPLACE_READ=0;
   REPLACE_READLINK=0;
+  REPLACE_READLINKAT=0;
   REPLACE_RMDIR=0;
   REPLACE_SLEEP=0;
   REPLACE_SYMLINK=0;
+  REPLACE_SYMLINKAT=0;
   REPLACE_TTYNAME_R=0;
   REPLACE_UNLINK=0;
   REPLACE_UNLINKAT=0;
@@ -8050,6 +8519,9 @@ else
 /* end confdefs.h.  */
 
 #include <errno.h>
+#if !defined ETXTBSY
+booboo
+#endif
 #if !defined ENOMSG
 booboo
 #endif
@@ -8089,6 +8561,15 @@ booboo
 #if !defined ECANCELED
 booboo
 #endif
+#if !defined EOWNERDEAD
+booboo
+#endif
+#if !defined ENOTRECOVERABLE
+booboo
+#endif
+#if !defined EILSEQ
+booboo
+#endif
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
@@ -8123,36 +8604,40 @@ if ${gl_cv_next_errno_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <errno.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'errno.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_errno_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
-               gl_header_literal_regex=`echo 'errno.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_errno_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+           gl_header=$gl_cv_absolute_errno_h
+           gl_cv_next_errno_h='"'$gl_header'"'
 
 
 fi
@@ -8493,6 +8978,9 @@ fi
 
   XGETTEXT_EXTRA_OPTIONS=
 
+
+
+
 ac_fn_c_check_decl "$LINENO" "fchdir" "ac_cv_have_decl_fchdir" "$ac_includes_default"
 if test "x$ac_cv_have_decl_fchdir" = xyes; then :
   ac_have_decl=1
@@ -8564,7 +9052,18 @@ main ()
             #if HAVE_SYMLINK
             {
               static char const sym[] = "conftest.sym";
-              if (symlink (".", sym) != 0)
+              if (symlink ("/dev/null", sym) != 0)
+                result |= 2;
+              else
+                {
+                  int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0);
+                  if (fd >= 0)
+                    {
+                      close (fd);
+                      result |= 4;
+                    }
+                }
+              if (unlink (sym) != 0 || symlink (".", sym) != 0)
                 result |= 2;
               else
                 {
@@ -8703,7 +9202,6 @@ fi
   GNULIB_GETCHAR=0;
   GNULIB_GETDELIM=0;
   GNULIB_GETLINE=0;
-  GNULIB_GETS=0;
   GNULIB_OBSTACK_PRINTF=0;
   GNULIB_OBSTACK_PRINTF_POSIX=0;
   GNULIB_PCLOSE=0;
@@ -8846,8 +9344,6 @@ $as_echo "#define mbstate_t int" >>confd
 
 
 
-
-
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdint.h" >&5
 $as_echo_n "checking for stdint.h... " >&6; }
 if ${gl_cv_header_stdint_h+:} false; then :
@@ -8935,9 +9431,9 @@ else
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_sizes_c99="guessing yes";;
                                  # Guess yes on FreeBSD >= 5.
-           freebsd[1-4]*)        gl_cv_func_printf_sizes_c99="guessing no";;
+           freebsd[1-4].*)       gl_cv_func_printf_sizes_c99="guessing no";;
            freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
-                                 # Guess yes on MacOS X >= 10.3.
+                                 # Guess yes on Mac OS X >= 10.3.
            darwin[1-6].*)        gl_cv_func_printf_sizes_c99="guessing no";;
            darwin*)              gl_cv_func_printf_sizes_c99="guessing yes";;
                                  # Guess yes on OpenBSD >= 3.9.
@@ -8978,6 +9474,8 @@ int main ()
   if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0
       || strcmp (buf, "12345671 33") != 0)
     result |= 1;
+#else
+  result |= 1;
 #endif
   buf[0] = '\0';
   if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0
@@ -9077,9 +9575,9 @@ else
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_infinite="guessing yes";;
                                  # Guess yes on FreeBSD >= 6.
-           freebsd[1-5]*)        gl_cv_func_printf_infinite="guessing no";;
+           freebsd[1-5].*)       gl_cv_func_printf_infinite="guessing no";;
            freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";;
-                                 # Guess yes on MacOS X >= 10.3.
+                                 # Guess yes on Mac OS X >= 10.3.
            darwin[1-6].*)        gl_cv_func_printf_infinite="guessing no";;
            darwin*)              gl_cv_func_printf_infinite="guessing yes";;
                                  # Guess yes on HP-UX >= 11.
@@ -9476,7 +9974,7 @@ else
                                          # Guess yes on glibc systems.
                    *-gnu*)               gl_cv_func_printf_infinite_long_double="guessing yes";;
                                          # Guess yes on FreeBSD >= 6.
-                   freebsd[1-5]*)        gl_cv_func_printf_infinite_long_double="guessing no";;
+                   freebsd[1-5].*)       gl_cv_func_printf_infinite_long_double="guessing no";;
                    freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
                                          # Guess yes on HP-UX >= 11.
                    hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";;
@@ -9494,7 +9992,7 @@ else
 
 #include <stdlib.h>
 #if defined __MACH__ && defined __APPLE__
-/* Avoid a crash on MacOS X.  */
+/* Avoid a crash on Mac OS X.  */
 #include <mach/mach.h>
 #include <mach/mach_error.h>
 #include <mach/thread_status.h>
@@ -9586,11 +10084,12 @@ nocrash_init (void)
 #else
 /* Avoid a crash on POSIX systems.  */
 #include <signal.h>
+#include <unistd.h>
 /* A POSIX signal handler.  */
 static void
 exception_handler (int sig)
 {
-  exit (1);
+  _exit (1);
 }
 static void
 nocrash_init (void)
@@ -9664,7 +10163,7 @@ int main ()
 # ifdef WORDS_BIGENDIAN
 #  define LDBL80_WORDS(exponent,manthi,mantlo) \
      { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
-       ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+       ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16),   \
        (unsigned int) (mantlo) << 16                                        \
      }
 # else
@@ -9701,66 +10200,51 @@ int main ()
   { /* Pseudo-NaN.  */
     static union { unsigned int word[4]; long double value; } x =
       { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
-    if (sprintf (buf, "%Lf", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lf", x.value) <= 0)
       result |= 4;
-    if (sprintf (buf, "%Le", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Le", x.value) <= 0)
       result |= 4;
-    if (sprintf (buf, "%Lg", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lg", x.value) <= 0)
       result |= 4;
   }
   { /* Pseudo-Infinity.  */
     static union { unsigned int word[4]; long double value; } x =
       { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
-    if (sprintf (buf, "%Lf", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lf", x.value) <= 0)
       result |= 8;
-    if (sprintf (buf, "%Le", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Le", x.value) <= 0)
       result |= 8;
-    if (sprintf (buf, "%Lg", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lg", x.value) <= 0)
       result |= 8;
   }
   { /* Pseudo-Zero.  */
     static union { unsigned int word[4]; long double value; } x =
       { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
-    if (sprintf (buf, "%Lf", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lf", x.value) <= 0)
       result |= 16;
-    if (sprintf (buf, "%Le", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Le", x.value) <= 0)
       result |= 16;
-    if (sprintf (buf, "%Lg", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lg", x.value) <= 0)
       result |= 16;
   }
   { /* Unnormalized number.  */
     static union { unsigned int word[4]; long double value; } x =
       { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
-    if (sprintf (buf, "%Lf", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lf", x.value) <= 0)
       result |= 32;
-    if (sprintf (buf, "%Le", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Le", x.value) <= 0)
       result |= 32;
-    if (sprintf (buf, "%Lg", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lg", x.value) <= 0)
       result |= 32;
   }
   { /* Pseudo-Denormal.  */
     static union { unsigned int word[4]; long double value; } x =
       { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
-    if (sprintf (buf, "%Lf", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lf", x.value) <= 0)
       result |= 64;
-    if (sprintf (buf, "%Le", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Le", x.value) <= 0)
       result |= 64;
-    if (sprintf (buf, "%Lg", x.value) < 0
-        || !strisnan (buf, 0, strlen (buf)))
+    if (sprintf (buf, "%Lg", x.value) <= 0)
       result |= 64;
   }
 #endif
@@ -9858,14 +10342,14 @@ int main ()
   if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0
       || buf[0] == '0')
     result |= 8;
-  /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug.  */
+  /* This catches a Mac OS X 10.3.9 (Darwin 7.9) bug.  */
   if (sprintf (buf, "%.1a", 1.999) < 0
       || (strcmp (buf, "0x1.0p+1") != 0
           && strcmp (buf, "0x2.0p+0") != 0
           && strcmp (buf, "0x4.0p-1") != 0
           && strcmp (buf, "0x8.0p-2") != 0))
     result |= 16;
-  /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a
+  /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a
      glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
   if (sprintf (buf, "%.1La", 1.999L) < 0
       || (strcmp (buf, "0x1.0p+1") != 0
@@ -9904,9 +10388,9 @@ else
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_directive_f="guessing yes";;
                                  # Guess yes on FreeBSD >= 6.
-           freebsd[1-5]*)        gl_cv_func_printf_directive_f="guessing no";;
+           freebsd[1-5].*)       gl_cv_func_printf_directive_f="guessing no";;
            freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";;
-                                 # Guess yes on MacOS X >= 10.3.
+                                 # Guess yes on Mac OS X >= 10.3.
            darwin[1-6].*)        gl_cv_func_printf_directive_f="guessing no";;
            darwin*)              gl_cv_func_printf_directive_f="guessing yes";;
                                  # Guess yes on Solaris >= 2.10.
@@ -10419,7 +10903,7 @@ else
 
 #include <stdlib.h>
 #if defined __MACH__ && defined __APPLE__
-/* Avoid a crash on MacOS X.  */
+/* Avoid a crash on Mac OS X.  */
 #include <mach/mach.h>
 #include <mach/mach_error.h>
 #include <mach/thread_status.h>
@@ -10511,11 +10995,12 @@ nocrash_init (void)
 #else
 /* Avoid a crash on POSIX systems.  */
 #include <signal.h>
+#include <unistd.h>
 /* A POSIX signal handler.  */
 static void
 exception_handler (int sig)
 {
-  exit (1);
+  _exit (1);
 }
 static void
 nocrash_init (void)
@@ -10580,8 +11065,9 @@ _ACEOF
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && test -s conftest$ac_exeext; then
-            (./conftest
+            (./conftest 2>&5
              result=$?
+             $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $result" >&5
              if test $result != 0 && test $result != 77; then result=1; fi
              exit $result
             ) >/dev/null 2>/dev/null
@@ -10832,12 +11318,58 @@ $as_echo "$gt_cv_c_wint_t" >&6; }
 
 $as_echo "#define HAVE_WINT_T 1" >>confdefs.h
 
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether wint_t is too small" >&5
+$as_echo_n "checking whether wint_t is too small... " >&6; }
+if ${gl_cv_type_wint_t_too_small+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#if !(defined __GLIBC__ && !defined __UCLIBC__)
+# include <stddef.h>
+# include <stdio.h>
+# include <time.h>
+#endif
+#include <wchar.h>
+              int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1];
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_type_wint_t_too_small=no
+else
+  gl_cv_type_wint_t_too_small=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_type_wint_t_too_small" >&5
+$as_echo "$gl_cv_type_wint_t_too_small" >&6; }
+    if test $gl_cv_type_wint_t_too_small = yes; then
+      GNULIB_OVERRIDES_WINT_T=1
+    else
+      GNULIB_OVERRIDES_WINT_T=0
+    fi
+  else
+    GNULIB_OVERRIDES_WINT_T=0
   fi
 
 
 
 
 
+
   if test $ac_cv_header_features_h = yes; then
     HAVE_FEATURES_H=1
   else
@@ -10907,7 +11439,7 @@ else
 
       if test "$cross_compiling" = yes; then :
 
-                                                            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+                                                                      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #if defined arm || defined __arm || defined __arm__
@@ -11264,9 +11796,9 @@ else
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_snprintf_retval_c99="guessing yes";;
                                  # Guess yes on FreeBSD >= 5.
-           freebsd[1-4]*)        gl_cv_func_snprintf_retval_c99="guessing no";;
+           freebsd[1-4].*)       gl_cv_func_snprintf_retval_c99="guessing no";;
            freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
-                                 # Guess yes on MacOS X >= 10.3.
+                                 # Guess yes on Mac OS X >= 10.3.
            darwin[1-6].*)        gl_cv_func_snprintf_retval_c99="guessing no";;
            darwin*)              gl_cv_func_snprintf_retval_c99="guessing yes";;
                                  # Guess yes on OpenBSD >= 3.9.
@@ -11341,7 +11873,6 @@ $as_echo "$gl_cv_func_snprintf_retval_c9
 
 
 
-
   for ac_func in snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
@@ -11390,6 +11921,9 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   GNULIB_ATANF=0;
   GNULIB_ATANL=0;
   GNULIB_ATAN2F=0;
+  GNULIB_CBRT=0;
+  GNULIB_CBRTF=0;
+  GNULIB_CBRTL=0;
   GNULIB_CEIL=0;
   GNULIB_CEILF=0;
   GNULIB_CEILL=0;
@@ -11401,17 +11935,32 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   GNULIB_COSHF=0;
   GNULIB_EXPF=0;
   GNULIB_EXPL=0;
+  GNULIB_EXP2=0;
+  GNULIB_EXP2F=0;
+  GNULIB_EXP2L=0;
+  GNULIB_EXPM1=0;
+  GNULIB_EXPM1F=0;
+  GNULIB_EXPM1L=0;
   GNULIB_FABSF=0;
+  GNULIB_FABSL=0;
   GNULIB_FLOOR=0;
   GNULIB_FLOORF=0;
   GNULIB_FLOORL=0;
   GNULIB_FMA=0;
   GNULIB_FMAF=0;
   GNULIB_FMAL=0;
+  GNULIB_FMOD=0;
   GNULIB_FMODF=0;
+  GNULIB_FMODL=0;
   GNULIB_FREXPF=0;
   GNULIB_FREXP=0;
   GNULIB_FREXPL=0;
+  GNULIB_HYPOT=0;
+  GNULIB_HYPOTF=0;
+  GNULIB_HYPOTL=0;
+  GNULIB_ILOGB=0;
+  GNULIB_ILOGBF=0;
+  GNULIB_ILOGBL=0;
   GNULIB_ISFINITE=0;
   GNULIB_ISINF=0;
   GNULIB_ISNAN=0;
@@ -11420,12 +11969,28 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   GNULIB_ISNANL=0;
   GNULIB_LDEXPF=0;
   GNULIB_LDEXPL=0;
-  GNULIB_LOGB=0;
+  GNULIB_LOG=0;
   GNULIB_LOGF=0;
   GNULIB_LOGL=0;
+  GNULIB_LOG10=0;
   GNULIB_LOG10F=0;
+  GNULIB_LOG10L=0;
+  GNULIB_LOG1P=0;
+  GNULIB_LOG1PF=0;
+  GNULIB_LOG1PL=0;
+  GNULIB_LOG2=0;
+  GNULIB_LOG2F=0;
+  GNULIB_LOG2L=0;
+  GNULIB_LOGB=0;
+  GNULIB_LOGBF=0;
+  GNULIB_LOGBL=0;
+  GNULIB_MODF=0;
   GNULIB_MODFF=0;
+  GNULIB_MODFL=0;
   GNULIB_POWF=0;
+  GNULIB_REMAINDER=0;
+  GNULIB_REMAINDERF=0;
+  GNULIB_REMAINDERL=0;
   GNULIB_RINT=0;
   GNULIB_RINTF=0;
   GNULIB_RINTL=0;
@@ -11451,20 +12016,31 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   HAVE_ATANF=1;
   HAVE_ATANL=1;
   HAVE_ATAN2F=1;
+  HAVE_CBRT=1;
+  HAVE_CBRTF=1;
+  HAVE_CBRTL=1;
   HAVE_COPYSIGN=1;
-  HAVE_COPYSIGNF=1;
   HAVE_COPYSIGNL=1;
   HAVE_COSF=1;
   HAVE_COSL=1;
   HAVE_COSHF=1;
   HAVE_EXPF=1;
   HAVE_EXPL=1;
+  HAVE_EXPM1=1;
+  HAVE_EXPM1F=1;
   HAVE_FABSF=1;
+  HAVE_FABSL=1;
   HAVE_FMA=1;
   HAVE_FMAF=1;
   HAVE_FMAL=1;
   HAVE_FMODF=1;
+  HAVE_FMODL=1;
   HAVE_FREXPF=1;
+  HAVE_HYPOTF=1;
+  HAVE_HYPOTL=1;
+  HAVE_ILOGB=1;
+  HAVE_ILOGBF=1;
+  HAVE_ILOGBL=1;
   HAVE_ISNANF=1;
   HAVE_ISNAND=1;
   HAVE_ISNANL=1;
@@ -11472,10 +12048,18 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   HAVE_LOGF=1;
   HAVE_LOGL=1;
   HAVE_LOG10F=1;
+  HAVE_LOG10L=1;
+  HAVE_LOG1P=1;
+  HAVE_LOG1PF=1;
+  HAVE_LOG1PL=1;
+  HAVE_LOGBF=1;
+  HAVE_LOGBL=1;
   HAVE_MODFF=1;
+  HAVE_MODFL=1;
   HAVE_POWF=1;
+  HAVE_REMAINDER=1;
+  HAVE_REMAINDERF=1;
   HAVE_RINT=1;
-  HAVE_RINTF=1;
   HAVE_RINTL=1;
   HAVE_SINF=1;
   HAVE_SINL=1;
@@ -11488,16 +12072,30 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   HAVE_DECL_ACOSL=1;
   HAVE_DECL_ASINL=1;
   HAVE_DECL_ATANL=1;
+  HAVE_DECL_CBRTF=1;
+  HAVE_DECL_CBRTL=1;
   HAVE_DECL_CEILF=1;
   HAVE_DECL_CEILL=1;
+  HAVE_DECL_COPYSIGNF=1;
   HAVE_DECL_COSL=1;
   HAVE_DECL_EXPL=1;
+  HAVE_DECL_EXP2=1;
+  HAVE_DECL_EXP2F=1;
+  HAVE_DECL_EXP2L=1;
+  HAVE_DECL_EXPM1L=1;
   HAVE_DECL_FLOORF=1;
   HAVE_DECL_FLOORL=1;
   HAVE_DECL_FREXPL=1;
   HAVE_DECL_LDEXPL=1;
-  HAVE_DECL_LOGB=1;
   HAVE_DECL_LOGL=1;
+  HAVE_DECL_LOG10L=1;
+  HAVE_DECL_LOG2=1;
+  HAVE_DECL_LOG2F=1;
+  HAVE_DECL_LOG2L=1;
+  HAVE_DECL_LOGB=1;
+  HAVE_DECL_REMAINDER=1;
+  HAVE_DECL_REMAINDERL=1;
+  HAVE_DECL_RINTF=1;
   HAVE_DECL_ROUND=1;
   HAVE_DECL_ROUNDF=1;
   HAVE_DECL_ROUNDL=1;
@@ -11507,29 +12105,78 @@ $as_echo "#define HAVE_SNPRINTF_RETVAL_C
   HAVE_DECL_TRUNC=1;
   HAVE_DECL_TRUNCF=1;
   HAVE_DECL_TRUNCL=1;
+  REPLACE_ACOSF=0;
+  REPLACE_ASINF=0;
+  REPLACE_ATANF=0;
+  REPLACE_ATAN2F=0;
+  REPLACE_CBRTF=0;
+  REPLACE_CBRTL=0;
   REPLACE_CEIL=0;
   REPLACE_CEILF=0;
   REPLACE_CEILL=0;
+  REPLACE_COSF=0;
+  REPLACE_COSHF=0;
+  REPLACE_EXPF=0;
+  REPLACE_EXPM1=0;
+  REPLACE_EXPM1F=0;
+  REPLACE_EXP2=0;
+  REPLACE_EXP2L=0;
+  REPLACE_FABSL=0;
   REPLACE_FLOOR=0;
   REPLACE_FLOORF=0;
   REPLACE_FLOORL=0;
   REPLACE_FMA=0;
   REPLACE_FMAF=0;
   REPLACE_FMAL=0;
+  REPLACE_FMOD=0;
+  REPLACE_FMODF=0;
+  REPLACE_FMODL=0;
   REPLACE_FREXPF=0;
   REPLACE_FREXP=0;
   REPLACE_FREXPL=0;
   REPLACE_HUGE_VAL=0;
+  REPLACE_HYPOT=0;
+  REPLACE_HYPOTF=0;
+  REPLACE_HYPOTL=0;
+  REPLACE_ILOGB=0;
+  REPLACE_ILOGBF=0;
   REPLACE_ISFINITE=0;
   REPLACE_ISINF=0;
   REPLACE_ISNAN=0;
   REPLACE_LDEXPL=0;
+  REPLACE_LOG=0;
+  REPLACE_LOGF=0;
+  REPLACE_LOGL=0;
+  REPLACE_LOG10=0;
+  REPLACE_LOG10F=0;
+  REPLACE_LOG10L=0;
+  REPLACE_LOG1P=0;
+  REPLACE_LOG1PF=0;
+  REPLACE_LOG1PL=0;
+  REPLACE_LOG2=0;
+  REPLACE_LOG2F=0;
+  REPLACE_LOG2L=0;
+  REPLACE_LOGB=0;
+  REPLACE_LOGBF=0;
+  REPLACE_LOGBL=0;
+  REPLACE_MODF=0;
+  REPLACE_MODFF=0;
+  REPLACE_MODFL=0;
   REPLACE_NAN=0;
+  REPLACE_REMAINDER=0;
+  REPLACE_REMAINDERF=0;
+  REPLACE_REMAINDERL=0;
   REPLACE_ROUND=0;
   REPLACE_ROUNDF=0;
   REPLACE_ROUNDL=0;
   REPLACE_SIGNBIT=0;
   REPLACE_SIGNBIT_USING_GCC=0;
+  REPLACE_SINF=0;
+  REPLACE_SINHF=0;
+  REPLACE_SQRTF=0;
+  REPLACE_SQRTL=0;
+  REPLACE_TANF=0;
+  REPLACE_TANHF=0;
   REPLACE_TRUNC=0;
   REPLACE_TRUNCF=0;
   REPLACE_TRUNCL=0;
@@ -11565,7 +12212,16 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_frexp_no_libm" >&5
 $as_echo "$gl_cv_func_frexp_no_libm" >&6; }
 
+ac_fn_c_check_decl "$LINENO" "alarm" "ac_cv_have_decl_alarm" "$ac_includes_default"
+if test "x$ac_cv_have_decl_alarm" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
 
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_ALARM $ac_have_decl
+_ACEOF
 
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stdin defaults to large file offsets" >&5
@@ -11603,6 +12259,139 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_var_stdin_large_offset" >&5
 $as_echo "$gl_cv_var_stdin_large_offset" >&6; }
 
+
+
+
+
+  case "$host_os" in
+    mingw*)
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit off_t" >&5
+$as_echo_n "checking for 64-bit off_t... " >&6; }
+if ${gl_cv_type_off_t_64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+                int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1];
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_type_off_t_64=yes
+else
+  gl_cv_type_off_t_64=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_type_off_t_64" >&5
+$as_echo "$gl_cv_type_off_t_64" >&6; }
+      if test $gl_cv_type_off_t_64 = no; then
+        WINDOWS_64_BIT_OFF_T=1
+      else
+        WINDOWS_64_BIT_OFF_T=0
+      fi
+                  WINDOWS_64_BIT_ST_SIZE=1
+      ;;
+    *)
+                                                      WINDOWS_64_BIT_OFF_T=0
+      WINDOWS_64_BIT_ST_SIZE=0
+      ;;
+  esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_sys_types_h='<'sys/types.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <sys/types.h>" >&5
+$as_echo_n "checking absolute name of <sys/types.h>... " >&6; }
+if ${gl_cv_next_sys_types_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+_ACEOF
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
+
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'sys/types.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_sys_types_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_sys_types_h
+           gl_cv_next_sys_types_h='"'$gl_header'"'
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_sys_types_h" >&5
+$as_echo "$gl_cv_next_sys_types_h" >&6; }
+     fi
+     NEXT_SYS_TYPES_H=$gl_cv_next_sys_types_h
+
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'sys/types.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_sys_types_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_SYS_TYPES_H=$gl_next_as_first_directive
+
+
+
+
+
+
+
+
+
+
+
 ac_fn_c_check_decl "$LINENO" "fseeko" "ac_cv_have_decl_fseeko" "$ac_includes_default"
 if test "x$ac_cv_have_decl_fseeko" = xyes; then :
   ac_have_decl=1
@@ -11621,6 +12410,7 @@ _ACEOF
 
 
 
+
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fseeko" >&5
 $as_echo_n "checking for fseeko... " >&6; }
 if ${gl_cv_func_fseeko+:} false; then :
@@ -11659,6 +12449,9 @@ $as_echo "$gl_cv_func_fseeko" >&6; }
   if test $gl_cv_func_fseeko = no; then
     HAVE_FSEEKO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FSEEKO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FSEEKO=1
     fi
@@ -11672,7 +12465,7 @@ if ${gl_cv_func_fflush_stdin+:} false; t
 else
   echo hello world > conftest.txt
      if test "$cross_compiling" = yes; then :
-        gl_cv_func_fflush_stdin=no
+  gl_cv_func_fflush_stdin=cross
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -11741,14 +12534,26 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_fflush_stdin" >&5
 $as_echo "$gl_cv_func_fflush_stdin" >&6; }
+  case $gl_cv_func_fflush_stdin in
+    yes) gl_func_fflush_stdin=1 ;;
+    no)  gl_func_fflush_stdin=0 ;;
+    *)   gl_func_fflush_stdin='(-1)' ;;
+  esac
 
-      if test $gl_cv_func_fflush_stdin = no; then
+cat >>confdefs.h <<_ACEOF
+#define FUNC_FFLUSH_STDIN $gl_func_fflush_stdin
+_ACEOF
+
+
+      if test $gl_cv_func_fflush_stdin != yes; then
         REPLACE_FSEEKO=1
       fi
 
   fi
 
 
+
+
      GNULIB_FCHMODAT=0;
   GNULIB_FSTAT=0;
   GNULIB_FSTATAT=0;
@@ -11783,76 +12588,53 @@ $as_echo "$gl_cv_func_fflush_stdin" >&6;
   REPLACE_STAT=0;
   REPLACE_UTIMENSAT=0;
 
-
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether lstat correctly handles trailing slash" >&5
-$as_echo_n "checking whether lstat correctly handles trailing slash... " >&6; }
-if ${gl_cv_func_lstat_dereferences_slashed_symlink+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stat file-mode macros are broken" >&5
+$as_echo_n "checking whether stat file-mode macros are broken... " >&6; }
+if ${ac_cv_header_stat_broken+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  rm -f conftest.sym conftest.file
-     echo >conftest.file
-     if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
-       if test "$cross_compiling" = yes; then :
-  # When cross-compiling, be pessimistic so we will end up using the
-          # replacement version of lstat that checks for trailing slashes and
-          # calls lstat a second time when necessary.
-          gl_cv_func_lstat_dereferences_slashed_symlink=no
-
-else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-struct stat sbuf;
-              /* Linux will dereference the symlink and fail, as required by
-                 POSIX.  That is better in the sense that it means we will not
-                 have to compile and use the lstat wrapper.  */
-              return lstat ("conftest.sym/", &sbuf) == 0;
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if defined S_ISBLK && defined S_IFDIR
+extern char c1[S_ISBLK (S_IFDIR) ? -1 : 1];
+#endif
+
+#if defined S_ISBLK && defined S_IFCHR
+extern char c2[S_ISBLK (S_IFCHR) ? -1 : 1];
+#endif
+
+#if defined S_ISLNK && defined S_IFREG
+extern char c3[S_ISLNK (S_IFREG) ? -1 : 1];
+#endif
+
+#if defined S_ISSOCK && defined S_IFREG
+extern char c4[S_ISSOCK (S_IFREG) ? -1 : 1];
+#endif
 
-  ;
-  return 0;
-}
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_lstat_dereferences_slashed_symlink=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stat_broken=no
 else
-  gl_cv_func_lstat_dereferences_slashed_symlink=no
+  ac_cv_header_stat_broken=yes
 fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stat_broken" >&5
+$as_echo "$ac_cv_header_stat_broken" >&6; }
+if test $ac_cv_header_stat_broken = yes; then
 
-     else
-       # If the 'ln -s' command failed, then we probably don't even
-       # have an lstat function.
-       gl_cv_func_lstat_dereferences_slashed_symlink=no
-     fi
-     rm -f conftest.sym conftest.file
+$as_echo "#define STAT_MACROS_BROKEN 1" >>confdefs.h
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_lstat_dereferences_slashed_symlink" >&5
-$as_echo "$gl_cv_func_lstat_dereferences_slashed_symlink" >&6; }
-  test $gl_cv_func_lstat_dereferences_slashed_symlink = yes &&
 
-cat >>confdefs.h <<_ACEOF
-#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
-_ACEOF
 
 
 
 
-ac_fn_c_check_decl "$LINENO" "ftello" "ac_cv_have_decl_ftello" "$ac_includes_default"
-if test "x$ac_cv_have_decl_ftello" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FTELLO $ac_have_decl
-_ACEOF
 
 
 
@@ -11862,20 +12644,240 @@ _ACEOF
 
 
 
-  if test $ac_cv_have_decl_ftello = no; then
-    HAVE_DECL_FTELLO=0
-  fi
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ftello" >&5
-$as_echo_n "checking for ftello... " >&6; }
-if ${gl_cv_func_ftello+:} false; then :
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_sys_stat_h='<'sys/stat.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <sys/stat.h>" >&5
+$as_echo_n "checking absolute name of <sys/stat.h>... " >&6; }
+if ${gl_cv_next_sys_stat_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+             if test $ac_cv_header_sys_stat_h = yes; then
+
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <stdio.h>
-int
+#include <sys/stat.h>
+_ACEOF
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
+
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'sys/stat.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_sys_stat_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_sys_stat_h
+           gl_cv_next_sys_stat_h='"'$gl_header'"'
+          else
+               gl_cv_next_sys_stat_h='<'sys/stat.h'>'
+             fi
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_sys_stat_h" >&5
+$as_echo "$gl_cv_next_sys_stat_h" >&6; }
+     fi
+     NEXT_SYS_STAT_H=$gl_cv_next_sys_stat_h
+
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'sys/stat.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_sys_stat_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_SYS_STAT_H=$gl_next_as_first_directive
+
+
+
+
+
+
+
+
+
+
+
+  if test $WINDOWS_64_BIT_ST_SIZE = 1; then
+
+$as_echo "#define _GL_WINDOWS_64_BIT_ST_SIZE 1" >>confdefs.h
+
+  fi
+
+      ac_fn_c_check_type "$LINENO" "nlink_t" "ac_cv_type_nlink_t" "#include <sys/types.h>
+     #include <sys/stat.h>
+"
+if test "x$ac_cv_type_nlink_t" = xyes; then :
+
+else
+
+$as_echo "#define nlink_t int" >>confdefs.h
+
+fi
+
+
+
+    for gl_func in fchmodat fstat fstatat futimens lchmod lstat mkdirat mkfifo mkfifoat     mknod mknodat stat utimensat; do
+    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
+$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
+if eval \${$as_gl_Symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/stat.h>
+
+int
+main ()
+{
+#undef $gl_func
+  (void) $gl_func;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_gl_Symbol=yes"
+else
+  eval "$as_gl_Symbol=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$as_gl_Symbol
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
+_ACEOF
+
+                     eval ac_cv_have_decl_$gl_func=yes
+fi
+      done
+
+
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether lstat correctly handles trailing slash" >&5
+$as_echo_n "checking whether lstat correctly handles trailing slash... " >&6; }
+if ${gl_cv_func_lstat_dereferences_slashed_symlink+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f conftest.sym conftest.file
+     echo >conftest.file
+     if test "$cross_compiling" = yes; then :
+  case "$host_os" in
+          *-gnu*)
+            # Guess yes on glibc systems.
+            gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
+          *)
+            # If we don't know, assume the worst.
+            gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;;
+        esac
+
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+struct stat sbuf;
+            if (symlink ("conftest.file", "conftest.sym") != 0)
+              return 1;
+            /* Linux will dereference the symlink and fail, as required by
+               POSIX.  That is better in the sense that it means we will not
+               have to compile and use the lstat wrapper.  */
+            return lstat ("conftest.sym/", &sbuf) == 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_lstat_dereferences_slashed_symlink=yes
+else
+  gl_cv_func_lstat_dereferences_slashed_symlink=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     rm -f conftest.sym conftest.file
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_lstat_dereferences_slashed_symlink" >&5
+$as_echo "$gl_cv_func_lstat_dereferences_slashed_symlink" >&6; }
+  case "$gl_cv_func_lstat_dereferences_slashed_symlink" in
+    *yes)
+
+cat >>confdefs.h <<_ACEOF
+#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
+_ACEOF
+
+      ;;
+  esac
+
+
+
+ac_fn_c_check_decl "$LINENO" "ftello" "ac_cv_have_decl_ftello" "$ac_includes_default"
+if test "x$ac_cv_have_decl_ftello" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FTELLO $ac_have_decl
+_ACEOF
+
+
+
+
+
+
+
+
+
+
+  if test $ac_cv_have_decl_ftello = no; then
+    HAVE_DECL_FTELLO=0
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ftello" >&5
+$as_echo_n "checking for ftello... " >&6; }
+if ${gl_cv_func_ftello+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
 main ()
 {
 ftello (stdin);
@@ -11897,9 +12899,13 @@ $as_echo "$gl_cv_func_ftello" >&6; }
   if test $gl_cv_func_ftello = no; then
     HAVE_FTELLO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FTELLO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FTELLO=1
-    else
+    fi
+    if test $REPLACE_FTELLO = 0; then
 
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ftello works" >&5
 $as_echo_n "checking whether ftello works... " >&6; }
@@ -12010,20 +13016,20 @@ if ${gl_cv_func_getcwd_null+:} false; th
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-
-       case "$host_os" in
-                               # Guess yes on glibc systems.
-         *-gnu*)               gl_cv_func_getcwd_null="guessing yes";;
-                               # Guess yes on Cygwin.
-         cygwin*)              gl_cv_func_getcwd_null="guessing yes";;
-                               # If we don't know, assume the worst.
-         *)                    gl_cv_func_getcwd_null="guessing no";;
-       esac
+  case "$host_os" in
+                     # Guess yes on glibc systems.
+            *-gnu*)  gl_cv_func_getcwd_null="guessing yes";;
+                     # Guess yes on Cygwin.
+            cygwin*) gl_cv_func_getcwd_null="guessing yes";;
+                     # If we don't know, assume the worst.
+            *)       gl_cv_func_getcwd_null="guessing no";;
+          esac
 
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+#	 include <stdlib.h>
 #        if HAVE_UNISTD_H
 #         include <unistd.h>
 #        else /* on Windows with MSVC */
@@ -12052,6 +13058,7 @@ main ()
                  return 3;
                if (f[1] != '\0')
                  return 4;
+               free (f);
                return 0;
              }
 #endif
@@ -12133,6 +13140,17 @@ _ACEOF
 
 
 
+ac_fn_c_check_decl "$LINENO" "getdtablesize" "ac_cv_have_decl_getdtablesize" "$ac_includes_default"
+if test "x$ac_cv_have_decl_getdtablesize" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETDTABLESIZE $ac_have_decl
+_ACEOF
+
 
 
 
@@ -12160,36 +13178,40 @@ else
              if test $ac_cv_header_getopt_h = yes; then
 
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <getopt.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'getopt.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
-               gl_header_literal_regex=`echo 'getopt.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_getopt_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+        gl_cv_absolute_getopt_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_getopt_h
+           gl_cv_next_getopt_h='"'$gl_header'"'
           else
                gl_cv_next_getopt_h='<'getopt.h'>'
              fi
@@ -12255,57 +13277,124 @@ done
 
   fi
 
-                    if test -z "$gl_replace_getopt"; then
+          if test -z "$gl_replace_getopt"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether getopt is POSIX compatible" >&5
 $as_echo_n "checking whether getopt is POSIX compatible... " >&6; }
 if ${gl_cv_func_getopt_posix+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-                                                                        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+                                                if test $cross_compiling = no; then
+                              if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+
 #include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
 int
 main ()
 {
-int *p = &optreset; return optreset;
-  ;
+  static char program[] = "program";
+  static char a[] = "-a";
+  static char foo[] = "foo";
+  static char bar[] = "bar";
+  char *argv[] = { program, a, foo, bar, NULL };
+  int c;
+
+  c = getopt (4, argv, "ab");
+  if (!(c == 'a'))
+    return 1;
+  c = getopt (4, argv, "ab");
+  if (!(c == -1))
+    return 2;
+  if (!(optind == 2))
+    return 3;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gl_optind_min=1
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_getopt_posix=maybe
+else
+  gl_cv_func_getopt_posix=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+          if test $gl_cv_func_getopt_posix = maybe; then
+                                    if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <getopt.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
 int
 main ()
 {
-return !getopt_clip;
-  ;
+  static char program[] = "program";
+  static char donald[] = "donald";
+  static char p[] = "-p";
+  static char billy[] = "billy";
+  static char duck[] = "duck";
+  static char a[] = "-a";
+  static char bar[] = "bar";
+  char *argv[] = { program, donald, p, billy, duck, a, bar, NULL };
+  int c;
+
+  c = getopt (7, argv, "+abp:q:");
+  if (!(c == -1))
+    return 4;
+  if (!(strcmp (argv[0], "program") == 0))
+    return 5;
+  if (!(strcmp (argv[1], "donald") == 0))
+    return 6;
+  if (!(strcmp (argv[2], "-p") == 0))
+    return 7;
+  if (!(strcmp (argv[3], "billy") == 0))
+    return 8;
+  if (!(strcmp (argv[4], "duck") == 0))
+    return 9;
+  if (!(strcmp (argv[5], "-a") == 0))
+    return 10;
+  if (!(strcmp (argv[6], "bar") == 0))
+    return 11;
+  if (!(optind == 1))
+    return 12;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gl_optind_min=1
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_getopt_posix=maybe
 else
-  gl_optind_min=0
+  gl_cv_func_getopt_posix=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-
-                gl_save_CPPFLAGS=$CPPFLAGS
-        CPPFLAGS="$CPPFLAGS -DOPTIND_MIN=$gl_optind_min"
-        if test "$cross_compiling" = yes; then :
-  case "$host_os" in
-             mingw*)         gl_cv_func_getopt_posix="guessing no";;
-             darwin* | aix*) gl_cv_func_getopt_posix="guessing no";;
-             *)              gl_cv_func_getopt_posix="guessing yes";;
-           esac
 
+          fi
+          if test $gl_cv_func_getopt_posix = maybe; then
+                        if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -12317,78 +13406,17 @@ else
 int
 main ()
 {
-  {
-    static char program[] = "program";
-    static char a[] = "-a";
-    static char foo[] = "foo";
-    static char bar[] = "bar";
-    char *argv[] = { program, a, foo, bar, NULL };
-    int c;
-
-    optind = OPTIND_MIN;
-    opterr = 0;
-
-    c = getopt (4, argv, "ab");
-    if (!(c == 'a'))
-      return 1;
-    c = getopt (4, argv, "ab");
-    if (!(c == -1))
-      return 2;
-    if (!(optind == 2))
-      return 3;
-  }
-  /* Some internal state exists at this point.  */
-  {
-    static char program[] = "program";
-    static char donald[] = "donald";
-    static char p[] = "-p";
-    static char billy[] = "billy";
-    static char duck[] = "duck";
-    static char a[] = "-a";
-    static char bar[] = "bar";
-    char *argv[] = { program, donald, p, billy, duck, a, bar, NULL };
-    int c;
-
-    optind = OPTIND_MIN;
-    opterr = 0;
-
-    c = getopt (7, argv, "+abp:q:");
-    if (!(c == -1))
-      return 4;
-    if (!(strcmp (argv[0], "program") == 0))
-      return 5;
-    if (!(strcmp (argv[1], "donald") == 0))
-      return 6;
-    if (!(strcmp (argv[2], "-p") == 0))
-      return 7;
-    if (!(strcmp (argv[3], "billy") == 0))
-      return 8;
-    if (!(strcmp (argv[4], "duck") == 0))
-      return 9;
-    if (!(strcmp (argv[5], "-a") == 0))
-      return 10;
-    if (!(strcmp (argv[6], "bar") == 0))
-      return 11;
-    if (!(optind == 1))
-      return 12;
-  }
-  /* Detect MacOS 10.5, AIX 7.1 bug.  */
-  {
-    static char program[] = "program";
-    static char ab[] = "-ab";
-    char *argv[3] = { program, ab, NULL };
-    optind = OPTIND_MIN;
-    opterr = 0;
-    if (getopt (2, argv, "ab:") != 'a')
-      return 13;
-    if (getopt (2, argv, "ab:") != '?')
-      return 14;
-    if (optopt != 'b')
-      return 15;
-    if (optind != 2)
-      return 16;
-  }
-
+  static char program[] = "program";
+  static char ab[] = "-ab";
+  char *argv[3] = { program, ab, NULL };
+  if (getopt (2, argv, "ab:") != 'a')
+    return 13;
+  if (getopt (2, argv, "ab:") != '?')
+    return 14;
+  if (optopt != 'b')
+    return 15;
+  if (optind != 2)
+    return 16;
   return 0;
 }
 
@@ -12402,7 +13430,13 @@ rm -f core *.core core.conftest.* gmon.o
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-        CPPFLAGS=$gl_save_CPPFLAGS
+          fi
+        else
+          case "$host_os" in
+            darwin* | aix* | mingw*) gl_cv_func_getopt_posix="guessing no";;
+            *)                       gl_cv_func_getopt_posix="guessing yes";;
+          esac
+        fi
 
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_getopt_posix" >&5
@@ -12433,11 +13467,7 @@ else
        POSIXLY_CORRECT=1
        export POSIXLY_CORRECT
        if test "$cross_compiling" = yes; then :
-           case $host_os:$ac_cv_have_decl_optreset in
-           *-gnu*:* | mingw*:*) gl_cv_func_getopt_gnu=no;;
-           *:yes)               gl_cv_func_getopt_gnu=no;;
-           *)                   gl_cv_func_getopt_gnu=yes;;
-         esac
+           gl_cv_func_getopt_gnu="guessing no"
 
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -12448,7 +13478,7 @@ else
 
 #include <stdlib.h>
 #if defined __MACH__ && defined __APPLE__
-/* Avoid a crash on MacOS X.  */
+/* Avoid a crash on Mac OS X.  */
 #include <mach/mach.h>
 #include <mach/mach_error.h>
 #include <mach/thread_status.h>
@@ -12540,11 +13570,12 @@ nocrash_init (void)
 #else
 /* Avoid a crash on POSIX systems.  */
 #include <signal.h>
+#include <unistd.h>
 /* A POSIX signal handler.  */
 static void
 exception_handler (int sig)
 {
-  exit (1);
+  _exit (1);
 }
 static void
 nocrash_init (void)
@@ -12568,7 +13599,7 @@ main ()
              nocrash_init();
 
              /* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw,
-                and fails on MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
+                and fails on Mac OS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
                 OSF/1 5.1, Solaris 10.  */
              {
                static char conftest[] = "conftest";
@@ -12579,7 +13610,7 @@ main ()
                  result |= 1;
              }
              /* This code succeeds on glibc 2.8, mingw,
-                and fails on MacOS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
+                and fails on Mac OS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
                 IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x.  */
              {
                static char program[] = "program";
@@ -12608,7 +13639,7 @@ main ()
                if (getopt (3, argv, "-p") != 1)
                  result |= 16;
                else if (getopt (3, argv, "-p") != 'p')
-                 result |= 32;
+                 result |= 16;
              }
              /* This code fails on glibc 2.11.  */
              {
@@ -12618,9 +13649,9 @@ main ()
                char *argv[] = { program, b, a, NULL };
                optind = opterr = 0;
                if (getopt (3, argv, "+:a:b") != 'b')
-                 result |= 64;
+                 result |= 32;
                else if (getopt (3, argv, "+:a:b") != ':')
-                 result |= 64;
+                 result |= 32;
              }
              /* This code dumps core on glibc 2.14.  */
              {
@@ -12630,7 +13661,7 @@ main ()
                char *argv[] = { program, w, dummy, NULL };
                optind = opterr = 1;
                if (getopt (3, argv, "W;") != 'W')
-                 result |= 128;
+                 result |= 64;
              }
              return result;
 
@@ -12656,24 +13687,83 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_getopt_gnu" >&5
 $as_echo "$gl_cv_func_getopt_gnu" >&6; }
-    if test "$gl_cv_func_getopt_gnu" = "no"; then
+    if test "$gl_cv_func_getopt_gnu" != yes; then
       gl_replace_getopt=yes
-    fi
-  fi
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working GNU getopt_long function" >&5
+$as_echo_n "checking for working GNU getopt_long function... " >&6; }
+if ${gl_cv_func_getopt_long_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+              case "$host_os" in
+              openbsd*) gl_cv_func_getopt_long_gnu="guessing no";;
+              *)        gl_cv_func_getopt_long_gnu="guessing yes";;
+            esac
+
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <getopt.h>
+                #include <stddef.h>
+                #include <string.h>
 
+int
+main ()
+{
+static const struct option long_options[] =
+                  {
+                    { "xtremely-",no_argument,       NULL, 1003 },
+                    { "xtra",     no_argument,       NULL, 1001 },
+                    { "xtreme",   no_argument,       NULL, 1002 },
+                    { "xtremely", no_argument,       NULL, 1003 },
+                    { NULL,       0,                 NULL, 0 }
+                  };
+                /* This code fails on OpenBSD 5.0.  */
+                {
+                  static char program[] = "program";
+                  static char xtremel[] = "--xtremel";
+                  char *argv[] = { program, xtremel, NULL };
+                  int option_index;
+                  optind = 1; opterr = 0;
+                  if (getopt_long (2, argv, "", long_options, &option_index) != 1003)
+                    return 1;
+                }
+                return 0;
 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_getopt_long_gnu=yes
+else
+  gl_cv_func_getopt_long_gnu=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_getopt_long_gnu" >&5
+$as_echo "$gl_cv_func_getopt_long_gnu" >&6; }
+      case "$gl_cv_func_getopt_long_gnu" in
+        *yes) ;;
+        *) gl_replace_getopt=yes ;;
+      esac
+    fi
+  fi
 
-    REPLACE_GETOPT=0
 
 
-  if test -n "$gl_replace_getopt"; then :
 
-      REPLACE_GETOPT=1
 
-fi
 
+    REPLACE_GETOPT=0
+    if test -n "$gl_replace_getopt"; then
+      REPLACE_GETOPT=1
+    fi
 
   if test $REPLACE_GETOPT = 1; then
 
@@ -12696,136 +13786,69 @@ cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_GETENV $ac_have_decl
 _ACEOF
 
-ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
-if test "x$ac_cv_type_off_t" = xyes; then :
-
-else
 
-cat >>confdefs.h <<_ACEOF
-#define off_t long int
-_ACEOF
 
-fi
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the exponent in a 'float'" >&5
-$as_echo_n "checking where to find the exponent in a 'float'... " >&6; }
-if ${gl_cv_cc_float_expbit0+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C/C++ restrict keyword" >&5
+$as_echo_n "checking for C/C++ restrict keyword... " >&6; }
+if ${ac_cv_c_restrict+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-      if test "$cross_compiling" = yes; then :
-  gl_cv_cc_float_expbit0="word 0 bit 23"
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  ac_cv_c_restrict=no
+   # The order here caters to the fact that C++ does not require restrict.
+   for ac_kw in __restrict __restrict__ _Restrict restrict; do
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+typedef int *int_ptr;
+	   int foo (int_ptr $ac_kw ip) { return ip[0]; }
+	   int bar (int [$ac_kw]); /* Catch GCC bug 14050.  */
+	   int bar (int ip[$ac_kw]) { return ip[0]; }
 
-#include <float.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#define NWORDS \
-  ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
-typedef union { float value; unsigned int word[NWORDS]; } memory_float;
-static unsigned int ored_words[NWORDS];
-static unsigned int anded_words[NWORDS];
-static void add_to_ored_words (float x)
-{
-  memory_float m;
-  size_t i;
-  /* Clear it first, in case
-     sizeof (float) < sizeof (memory_float).  */
-  memset (&m, 0, sizeof (memory_float));
-  m.value = x;
-  for (i = 0; i < NWORDS; i++)
-    {
-      ored_words[i] |= m.word[i];
-      anded_words[i] &= m.word[i];
-    }
-}
-int main ()
+int
+main ()
 {
-  size_t j;
-  FILE *fp = fopen ("conftest.out", "w");
-  if (fp == NULL)
-    return 1;
-  for (j = 0; j < NWORDS; j++)
-    anded_words[j] = ~ (unsigned int) 0;
-  add_to_ored_words (0.25f);
-  add_to_ored_words (0.5f);
-  add_to_ored_words (1.0f);
-  add_to_ored_words (2.0f);
-  add_to_ored_words (4.0f);
-  /* Remove bits that are common (e.g. if representation of the first mantissa
-     bit is explicit).  */
-  for (j = 0; j < NWORDS; j++)
-    ored_words[j] &= ~anded_words[j];
-  /* Now find the nonzero word.  */
-  for (j = 0; j < NWORDS; j++)
-    if (ored_words[j] != 0)
-      break;
-  if (j < NWORDS)
-    {
-      size_t i;
-      for (i = j + 1; i < NWORDS; i++)
-        if (ored_words[i] != 0)
-          {
-            fprintf (fp, "unknown");
-            return (fclose (fp) != 0);
-          }
-      for (i = 0; ; i++)
-        if ((ored_words[j] >> i) & 1)
-          {
-            fprintf (fp, "word %d bit %d", (int) j, (int) i);
-            return (fclose (fp) != 0);
-          }
-    }
-  fprintf (fp, "unknown");
-  return (fclose (fp) != 0);
-}
+int s[1];
+	   int *$ac_kw t = s;
+	   t[0] = 0;
+	   return foo (t) + bar (t);
 
+  ;
+  return 0;
+}
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_cc_float_expbit0=`cat conftest.out`
-else
-  gl_cv_cc_float_expbit0="unknown"
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_restrict=$ac_kw
 fi
-
-      rm -f conftest.out
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     test "$ac_cv_c_restrict" != no && break
+   done
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_float_expbit0" >&5
-$as_echo "$gl_cv_cc_float_expbit0" >&6; }
-  case "$gl_cv_cc_float_expbit0" in
-    word*bit*)
-      word=`echo "$gl_cv_cc_float_expbit0" | sed -e 's/word //' -e 's/ bit.*//'`
-      bit=`echo "$gl_cv_cc_float_expbit0" | sed -e 's/word.*bit //'`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_restrict" >&5
+$as_echo "$ac_cv_c_restrict" >&6; }
 
-cat >>confdefs.h <<_ACEOF
-#define FLT_EXPBIT0_WORD $word
+ case $ac_cv_c_restrict in
+   restrict) ;;
+   no) $as_echo "#define restrict /**/" >>confdefs.h
+ ;;
+   *)  cat >>confdefs.h <<_ACEOF
+#define restrict $ac_cv_c_restrict
 _ACEOF
+ ;;
+ esac
 
 
-cat >>confdefs.h <<_ACEOF
-#define FLT_EXPBIT0_BIT $bit
-_ACEOF
+  GNULIB_GETTIMEOFDAY=0;
+    HAVE_GETTIMEOFDAY=1;
+  HAVE_STRUCT_TIMEVAL=1;
+  HAVE_SYS_TIME_H=1;
+  HAVE_TIMEZONE_T=0;
+  REPLACE_GETTIMEOFDAY=0;
+  REPLACE_STRUCT_TIMEVAL=0;
 
-      ;;
-  esac
 
 
-  GNULIB_ISWBLANK=0;
-  GNULIB_WCTYPE=0;
-  GNULIB_ISWCTYPE=0;
-  GNULIB_WCTRANS=0;
-  GNULIB_TOWCTRANS=0;
-    HAVE_ISWBLANK=1;
-  HAVE_WCTYPE_T=1;
-  HAVE_WCTRANS_T=1;
-  REPLACE_ISWBLANK=0;
 
 
 
@@ -12834,33 +13857,403 @@ _ACEOF
 
 
 
-  if test $ac_cv_func_iswcntrl = yes; then
-    HAVE_ISWCNTRL=1
-  else
-    HAVE_ISWCNTRL=0
-  fi
 
 
 
 
 
-  if test $gt_cv_c_wint_t = yes; then
-    HAVE_WINT_T=1
-  else
-    HAVE_WINT_T=0
-  fi
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_sys_time_h='<'sys/time.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <sys/time.h>" >&5
+$as_echo_n "checking absolute name of <sys/time.h>... " >&6; }
+if ${gl_cv_next_sys_time_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
+             if test $ac_cv_header_sys_time_h = yes; then
 
 
 
 
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/time.h>
+_ACEOF
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'sys/time.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
+        gl_cv_absolute_sys_time_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
+           gl_header=$gl_cv_absolute_sys_time_h
+           gl_cv_next_sys_time_h='"'$gl_header'"'
+          else
+               gl_cv_next_sys_time_h='<'sys/time.h'>'
+             fi
 
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_sys_time_h" >&5
+$as_echo "$gl_cv_next_sys_time_h" >&6; }
+     fi
+     NEXT_SYS_TIME_H=$gl_cv_next_sys_time_h
 
-     if test $gl_cv_have_include_next = yes; then
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'sys/time.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_sys_time_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_SYS_TIME_H=$gl_next_as_first_directive
+
+
+
+
+
+  if test $ac_cv_header_sys_time_h != yes; then
+    HAVE_SYS_TIME_H=0
+  fi
+
+
+
+
+
+  if test $ac_cv_header_sys_socket_h != yes; then
+                    for ac_header in winsock2.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "winsock2.h" "ac_cv_header_winsock2_h" "$ac_includes_default"
+if test "x$ac_cv_header_winsock2_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_WINSOCK2_H 1
+_ACEOF
+
+fi
+
+done
+
+  fi
+  if test "$ac_cv_header_winsock2_h" = yes; then
+    HAVE_WINSOCK2_H=1
+    UNISTD_H_HAVE_WINSOCK2_H=1
+    SYS_IOCTL_H_HAVE_WINSOCK2_H=1
+  else
+    HAVE_WINSOCK2_H=0
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timeval" >&5
+$as_echo_n "checking for struct timeval... " >&6; }
+if ${gl_cv_sys_struct_timeval+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if HAVE_SYS_TIME_H
+             #include <sys/time.h>
+            #endif
+            #include <time.h>
+            #if HAVE_WINSOCK2_H
+            # include <winsock2.h>
+            #endif
+
+int
+main ()
+{
+static struct timeval x; x.tv_sec = x.tv_usec;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timeval=yes
+else
+  gl_cv_sys_struct_timeval=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timeval" >&5
+$as_echo "$gl_cv_sys_struct_timeval" >&6; }
+  if test $gl_cv_sys_struct_timeval != yes; then
+    HAVE_STRUCT_TIMEVAL=0
+  else
+                            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for wide-enough struct timeval.tv_sec member" >&5
+$as_echo_n "checking for wide-enough struct timeval.tv_sec member... " >&6; }
+if ${gl_cv_sys_struct_timeval_tv_sec+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if HAVE_SYS_TIME_H
+               #include <sys/time.h>
+              #endif
+              #include <time.h>
+              #if HAVE_WINSOCK2_H
+              # include <winsock2.h>
+              #endif
+
+int
+main ()
+{
+static struct timeval x;
+              typedef int verify_tv_sec_type[
+                sizeof (time_t) <= sizeof x.tv_sec ? 1 : -1
+              ];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timeval_tv_sec=yes
+else
+  gl_cv_sys_struct_timeval_tv_sec=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timeval_tv_sec" >&5
+$as_echo "$gl_cv_sys_struct_timeval_tv_sec" >&6; }
+    if test $gl_cv_sys_struct_timeval_tv_sec != yes; then
+      REPLACE_STRUCT_TIMEVAL=1
+    fi
+  fi
+
+
+    for gl_func in gettimeofday; do
+    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
+$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
+if eval \${$as_gl_Symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#include <time.h>
+
+int
+main ()
+{
+#undef $gl_func
+  (void) $gl_func;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_gl_Symbol=yes"
+else
+  eval "$as_gl_Symbol=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$as_gl_Symbol
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
+_ACEOF
+
+                     eval ac_cv_have_decl_$gl_func=yes
+fi
+      done
+
+
+
+
+
+
+
+ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
+if test "x$ac_cv_type_off_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define off_t long int
+_ACEOF
+
+fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the exponent in a 'float'" >&5
+$as_echo_n "checking where to find the exponent in a 'float'... " >&6; }
+if ${gl_cv_cc_float_expbit0+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      if test "$cross_compiling" = yes; then :
+  gl_cv_cc_float_expbit0="word 0 bit 23"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <float.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#define NWORDS \
+  ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+typedef union { float value; unsigned int word[NWORDS]; } memory_float;
+static unsigned int ored_words[NWORDS];
+static unsigned int anded_words[NWORDS];
+static void add_to_ored_words (float x)
+{
+  memory_float m;
+  size_t i;
+  /* Clear it first, in case
+     sizeof (float) < sizeof (memory_float).  */
+  memset (&m, 0, sizeof (memory_float));
+  m.value = x;
+  for (i = 0; i < NWORDS; i++)
+    {
+      ored_words[i] |= m.word[i];
+      anded_words[i] &= m.word[i];
+    }
+}
+int main ()
+{
+  size_t j;
+  FILE *fp = fopen ("conftest.out", "w");
+  if (fp == NULL)
+    return 1;
+  for (j = 0; j < NWORDS; j++)
+    anded_words[j] = ~ (unsigned int) 0;
+  add_to_ored_words (0.25f);
+  add_to_ored_words (0.5f);
+  add_to_ored_words (1.0f);
+  add_to_ored_words (2.0f);
+  add_to_ored_words (4.0f);
+  /* Remove bits that are common (e.g. if representation of the first mantissa
+     bit is explicit).  */
+  for (j = 0; j < NWORDS; j++)
+    ored_words[j] &= ~anded_words[j];
+  /* Now find the nonzero word.  */
+  for (j = 0; j < NWORDS; j++)
+    if (ored_words[j] != 0)
+      break;
+  if (j < NWORDS)
+    {
+      size_t i;
+      for (i = j + 1; i < NWORDS; i++)
+        if (ored_words[i] != 0)
+          {
+            fprintf (fp, "unknown");
+            return (fclose (fp) != 0);
+          }
+      for (i = 0; ; i++)
+        if ((ored_words[j] >> i) & 1)
+          {
+            fprintf (fp, "word %d bit %d", (int) j, (int) i);
+            return (fclose (fp) != 0);
+          }
+    }
+  fprintf (fp, "unknown");
+  return (fclose (fp) != 0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_cc_float_expbit0=`cat conftest.out`
+else
+  gl_cv_cc_float_expbit0="unknown"
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      rm -f conftest.out
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_float_expbit0" >&5
+$as_echo "$gl_cv_cc_float_expbit0" >&6; }
+  case "$gl_cv_cc_float_expbit0" in
+    word*bit*)
+      word=`echo "$gl_cv_cc_float_expbit0" | sed -e 's/word //' -e 's/ bit.*//'`
+      bit=`echo "$gl_cv_cc_float_expbit0" | sed -e 's/word.*bit //'`
+
+cat >>confdefs.h <<_ACEOF
+#define FLT_EXPBIT0_WORD $word
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define FLT_EXPBIT0_BIT $bit
+_ACEOF
+
+      ;;
+  esac
+
+
+  GNULIB_ISWBLANK=0;
+  GNULIB_WCTYPE=0;
+  GNULIB_ISWCTYPE=0;
+  GNULIB_WCTRANS=0;
+  GNULIB_TOWCTRANS=0;
+    HAVE_ISWBLANK=1;
+  HAVE_WCTYPE_T=1;
+  HAVE_WCTRANS_T=1;
+  REPLACE_ISWBLANK=0;
+
+
+
+
+
+
+
+
+  if test $ac_cv_func_iswcntrl = yes; then
+    HAVE_ISWCNTRL=1
+  else
+    HAVE_ISWCNTRL=0
+  fi
+
+
+
+  if test $gt_cv_c_wint_t = yes; then
+    HAVE_WINT_T=1
+  else
+    HAVE_WINT_T=0
+  fi
+
+
+
+
+
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
        gl_cv_next_wctype_h='<'wctype.h'>'
      else
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <wctype.h>" >&5
@@ -12872,36 +14265,40 @@ else
              if test $ac_cv_header_wctype_h = yes; then
 
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <wctype.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'wctype.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_wctype_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
-               gl_header_literal_regex=`echo 'wctype.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_wctype_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+           gl_header=$gl_cv_absolute_wctype_h
+           gl_cv_next_wctype_h='"'$gl_header'"'
           else
                gl_cv_next_wctype_h='<'wctype.h'>'
              fi
@@ -12949,9 +14346,9 @@ main ()
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_func_iswcntrl_works=yes
+  gl_cv_func_iswcntrl_works="guessing yes"
 else
-  gl_cv_func_iswcntrl_works=no
+  gl_cv_func_iswcntrl_works="guessing no"
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
@@ -12991,11 +14388,10 @@ $as_echo "$gl_cv_func_iswcntrl_works" >&
   fi
 
 
-  if test "$gl_cv_func_iswcntrl_works" = no; then
-    REPLACE_ISWCNTRL=1
-  else
-    REPLACE_ISWCNTRL=0
-  fi
+  case "$gl_cv_func_iswcntrl_works" in
+    *yes) REPLACE_ISWCNTRL=0 ;;
+    *)    REPLACE_ISWCNTRL=1 ;;
+  esac
 
 
   if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
@@ -13198,6 +14594,132 @@ fi
 
 
 
+
+
+
+
+
+
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_limits_h='<'limits.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <limits.h>" >&5
+$as_echo_n "checking absolute name of <limits.h>... " >&6; }
+if ${gl_cv_next_limits_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+             if test $ac_cv_header_limits_h = yes; then
+
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <limits.h>
+_ACEOF
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
+
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'limits.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_limits_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_limits_h
+           gl_cv_next_limits_h='"'$gl_header'"'
+          else
+               gl_cv_next_limits_h='<'limits.h'>'
+             fi
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_limits_h" >&5
+$as_echo "$gl_cv_next_limits_h" >&6; }
+     fi
+     NEXT_LIMITS_H=$gl_cv_next_limits_h
+
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'limits.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_limits_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_LIMITS_H=$gl_next_as_first_directive
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether limits.h has ULLONG_WIDTH etc." >&5
+$as_echo_n "checking whether limits.h has ULLONG_WIDTH etc.... " >&6; }
+if ${gl_cv_header_limits_width+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
+                           #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+                          #endif
+                          #include <limits.h>
+                          int ullw = ULLONG_WIDTH;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_header_limits_width=yes
+else
+  gl_cv_header_limits_width=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_limits_width" >&5
+$as_echo "$gl_cv_header_limits_width" >&6; }
+  if test "$gl_cv_header_limits_width" = yes; then
+    LIMITS_H=
+  else
+    LIMITS_H=limits.h
+  fi
+
+   if test -n "$LIMITS_H"; then
+  GL_GENERATE_LIMITS_H_TRUE=
+  GL_GENERATE_LIMITS_H_FALSE='#'
+else
+  GL_GENERATE_LIMITS_H_TRUE='#'
+  GL_GENERATE_LIMITS_H_FALSE=
+fi
+
+
 ac_fn_c_check_decl "$LINENO" "getc_unlocked" "ac_cv_have_decl_getc_unlocked" "$ac_includes_default"
 if test "x$ac_cv_have_decl_getc_unlocked" = xyes; then :
   ac_have_decl=1
@@ -13247,750 +14769,732 @@ $as_echo "$ac_cv_gnu_library_2_1" >&6; }
 
 
 
+  GNULIB_LOCALECONV=0;
+  GNULIB_SETLOCALE=0;
+  GNULIB_DUPLOCALE=0;
+    HAVE_DUPLOCALE=1;
+  REPLACE_LOCALECONV=0;
+  REPLACE_SETLOCALE=0;
+  REPLACE_DUPLOCALE=0;
+  REPLACE_STRUCT_LCONV=0;
 
 
+    REPLACE_NULL=0;
+  HAVE_MAX_ALIGN_T=1;
+  HAVE_WCHAR_T=1;
 
 
 
 
+  STDDEF_H=
+  ac_fn_c_check_type "$LINENO" "max_align_t" "ac_cv_type_max_align_t" "#include <stddef.h>
 
+"
+if test "x$ac_cv_type_max_align_t" = xyes; then :
 
+else
+  HAVE_MAX_ALIGN_T=0; STDDEF_H=stddef.h
+fi
 
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a traditional japanese locale" >&5
-$as_echo_n "checking for a traditional japanese locale... " >&6; }
-if ${gt_cv_locale_ja+:} false; then :
+  if test $gt_cv_c_wchar_t = no; then
+    HAVE_WCHAR_T=0
+    STDDEF_H=stddef.h
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether NULL can be used in arbitrary expressions" >&5
+$as_echo_n "checking whether NULL can be used in arbitrary expressions... " >&6; }
+if ${gl_cv_decl_null_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <stddef.h>
+      int test[2 * (sizeof NULL == sizeof (void *)) -1];
 
-#include <locale.h>
-#include <time.h>
-#if HAVE_LANGINFO_CODESET
-# include <langinfo.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-struct tm t;
-char buf[16];
-int main ()
+int
+main ()
 {
-  const char *p;
-  /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
-  /* On native Windows, setlocale(category, "") looks at the system settings,
-     not at the environment variables.  Also, when an encoding suffix such
-     as ".65001" or ".54936" is speficied, it succeeds but sets the LC_CTYPE
-     category of the locale to "C".  */
-  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
-      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
-    return 1;
-#else
-  if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
-  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
-     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
-     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
-     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
-     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
-     some unit tests fail.
-     On MirBSD 10, when an unsupported locale is specified, setlocale()
-     succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
-#if HAVE_LANGINFO_CODESET
-  {
-    const char *cs = nl_langinfo (CODESET);
-    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
-        || strcmp (cs, "UTF-8") == 0)
-      return 1;
-  }
-#endif
-#ifdef __CYGWIN__
-  /* On Cygwin, avoid locale names without encoding suffix, because the
-     locale_charset() function relies on the encoding suffix.  Note that
-     LC_ALL is set on the command line.  */
-  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
-  /* Check whether MB_CUR_MAX is > 1.  This excludes the dysfunctional locales
-     on Cygwin 1.5.x.  */
-  if (MB_CUR_MAX == 1)
-    return 1;
-  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
-     This excludes the UTF-8 encoding (except on MirBSD).  */
-  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
-  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
-  for (p = buf; *p != '\0'; p++)
-    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
-      return 1;
+
+  ;
   return 0;
 }
-
 _ACEOF
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest$ac_exeext; then
-      case "$host_os" in
-        # Handle native Windows specially, because there setlocale() interprets
-        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
-        # "fr" or "fra" as "French" or "French_France.1252",
-        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
-        # "ja" as "Japanese" or "Japanese_Japan.932",
-        # and similar.
-        mingw*)
-          # Note that on native Windows, the Japanese locale is
-          # Japanese_Japan.932, and CP932 is very different from EUC-JP, so we
-          # cannot use it here.
-          gt_cv_locale_ja=none
-          ;;
-        *)
-          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
-          # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
-          # configure script would override the LC_ALL setting. Likewise for
-          # LC_CTYPE, which is also set at the beginning of the configure script.
-          # Test for the AIX locale name.
-          if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-            gt_cv_locale_ja=ja_JP
-          else
-            # Test for the locale name with explicit encoding suffix.
-            if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-              gt_cv_locale_ja=ja_JP.EUC-JP
-            else
-              # Test for the HP-UX, OSF/1, NetBSD locale name.
-              if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-                gt_cv_locale_ja=ja_JP.eucJP
-              else
-                # Test for the IRIX, FreeBSD locale name.
-                if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-                  gt_cv_locale_ja=ja_JP.EUC
-                else
-                  # Test for the Solaris 7 locale name.
-                  if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-                    gt_cv_locale_ja=ja
-                  else
-                    # Special test for NetBSD 1.6.
-                    if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then
-                      gt_cv_locale_ja=ja_JP.eucJP
-                    else
-                      # None found.
-                      gt_cv_locale_ja=none
-                    fi
-                  fi
-                fi
-              fi
-            fi
-          fi
-          ;;
-      esac
-    fi
-    rm -fr conftest*
-
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_decl_null_works=yes
+else
+  gl_cv_decl_null_works=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_ja" >&5
-$as_echo "$gt_cv_locale_ja" >&6; }
-  LOCALE_JA=$gt_cv_locale_ja
-
-
-
-
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_decl_null_works" >&5
+$as_echo "$gl_cv_decl_null_works" >&6; }
+  if test $gl_cv_decl_null_works = no; then
+    REPLACE_NULL=1
+    STDDEF_H=stddef.h
+  fi
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a transitional chinese locale" >&5
-$as_echo_n "checking for a transitional chinese locale... " >&6; }
-if ${gt_cv_locale_zh_CN+:} false; then :
-  $as_echo_n "(cached) " >&6
+   if test -n "$STDDEF_H"; then
+  GL_GENERATE_STDDEF_H_TRUE=
+  GL_GENERATE_STDDEF_H_FALSE='#'
 else
+  GL_GENERATE_STDDEF_H_TRUE='#'
+  GL_GENERATE_STDDEF_H_FALSE=
+fi
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
+  if test -n "$STDDEF_H"; then
 
-#include <locale.h>
-#include <stdlib.h>
-#include <time.h>
-#if HAVE_LANGINFO_CODESET
-# include <langinfo.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-struct tm t;
-char buf[16];
-int main ()
-{
-  const char *p;
-  /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
-  /* On native Windows, setlocale(category, "") looks at the system settings,
-     not at the environment variables.  Also, when an encoding suffix such
-     as ".65001" or ".54936" is speficied, it succeeds but sets the LC_CTYPE
-     category of the locale to "C".  */
-  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
-      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
-    return 1;
-#else
-  if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
-  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
-     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
-     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
-     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
-     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
-     some unit tests fail.
-     On MirBSD 10, when an unsupported locale is specified, setlocale()
-     succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
-#if HAVE_LANGINFO_CODESET
-  {
-    const char *cs = nl_langinfo (CODESET);
-    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
-        || strcmp (cs, "UTF-8") == 0)
-      return 1;
-  }
-#endif
-#ifdef __CYGWIN__
-  /* On Cygwin, avoid locale names without encoding suffix, because the
-     locale_charset() function relies on the encoding suffix.  Note that
-     LC_ALL is set on the command line.  */
-  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
-  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
-     This excludes the UTF-8 encoding (except on MirBSD).  */
-  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
-  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
-  for (p = buf; *p != '\0'; p++)
-    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
-      return 1;
-  /* Check whether a typical GB18030 multibyte sequence is recognized as a
-     single wide character.  This excludes the GB2312 and GBK encodings.  */
-  if (mblen ("\203\062\332\066", 5) != 4)
-    return 1;
-  return 0;
-}
 
-_ACEOF
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest$ac_exeext; then
-      case "$host_os" in
-        # Handle native Windows specially, because there setlocale() interprets
-        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
-        # "fr" or "fra" as "French" or "French_France.1252",
-        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
-        # "ja" as "Japanese" or "Japanese_Japan.932",
-        # and similar.
-        mingw*)
-          # Test for the hypothetical native Windows locale name.
-          if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-            gt_cv_locale_zh_CN=Chinese_China.54936
-          else
-            # None found.
-            gt_cv_locale_zh_CN=none
-          fi
-          ;;
-        solaris2.8)
-          # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are
-          # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK.
-          # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core.
-          gt_cv_locale_zh_CN=none
-          ;;
-        *)
-          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
-          # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
-          # configure script would override the LC_ALL setting. Likewise for
-          # LC_CTYPE, which is also set at the beginning of the configure script.
-          # Test for the locale name without encoding suffix.
-          if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-            gt_cv_locale_zh_CN=zh_CN
-          else
-            # Test for the locale name with explicit encoding suffix.
-            if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-              gt_cv_locale_zh_CN=zh_CN.GB18030
-            else
-              # None found.
-              gt_cv_locale_zh_CN=none
-            fi
-          fi
-          ;;
-      esac
-    else
-      # If there was a link error, due to mblen(), the system is so old that
-      # it certainly doesn't have a chinese locale.
-      gt_cv_locale_zh_CN=none
-    fi
-    rm -fr conftest*
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_zh_CN" >&5
-$as_echo "$gt_cv_locale_zh_CN" >&6; }
-  LOCALE_ZH_CN=$gt_cv_locale_zh_CN
 
 
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a french Unicode locale" >&5
-$as_echo_n "checking for a french Unicode locale... " >&6; }
-if ${gt_cv_locale_fr_utf8+:} false; then :
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_stddef_h='<'stddef.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <stddef.h>" >&5
+$as_echo_n "checking absolute name of <stddef.h>... " >&6; }
+if ${gl_cv_next_stddef_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-#include <locale.h>
-#include <time.h>
-#if HAVE_LANGINFO_CODESET
-# include <langinfo.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-struct tm t;
-char buf[16];
-int main () {
-  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
-     imitates locale dependent behaviour by looking at the environment
-     variables, and all locales use the UTF-8 encoding.  */
-#if !(defined __BEOS__ || defined __HAIKU__)
-  /* Check whether the given locale name is recognized by the system.  */
-# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
-  /* On native Windows, setlocale(category, "") looks at the system settings,
-     not at the environment variables.  Also, when an encoding suffix such
-     as ".65001" or ".54936" is speficied, it succeeds but sets the LC_CTYPE
-     category of the locale to "C".  */
-  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
-      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
-    return 1;
-# else
-  if (setlocale (LC_ALL, "") == NULL) return 1;
-# endif
-  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
-     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
-     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
-     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
-     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
-     some unit tests fail.  */
-# if HAVE_LANGINFO_CODESET
-  {
-    const char *cs = nl_langinfo (CODESET);
-    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0)
-      return 1;
-  }
-# endif
-# ifdef __CYGWIN__
-  /* On Cygwin, avoid locale names without encoding suffix, because the
-     locale_charset() function relies on the encoding suffix.  Note that
-     LC_ALL is set on the command line.  */
-  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-# endif
-  /* Check whether in the abbreviation of the second month, the second
-     character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is
-     two bytes long, with UTF-8 encoding.  */
-  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
-  if (strftime (buf, sizeof (buf), "%b", &t) < 4
-      || buf[1] != (char) 0xc3 || buf[2] != (char) 0xa9 || buf[3] != 'v')
-    return 1;
-#endif
-#if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy.  */
-  /* Check whether the decimal separator is a comma.
-     On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point
-     are nl_langinfo(RADIXCHAR) are both ".".  */
-  if (localeconv () ->decimal_point[0] != ',') return 1;
-#endif
-  return 0;
-}
 
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stddef.h>
 _ACEOF
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest$ac_exeext; then
-      case "$host_os" in
-        # Handle native Windows specially, because there setlocale() interprets
-        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
-        # "fr" or "fra" as "French" or "French_France.1252",
-        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
-        # "ja" as "Japanese" or "Japanese_Japan.932",
-        # and similar.
-        mingw*)
-          # Test for the hypothetical native Windows locale name.
-          if (LC_ALL=French_France.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-            gt_cv_locale_fr_utf8=French_France.65001
-          else
-            # None found.
-            gt_cv_locale_fr_utf8=none
-          fi
-          ;;
-        *)
-          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
-          # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
-          # configure script would override the LC_ALL setting. Likewise for
-          # LC_CTYPE, which is also set at the beginning of the configure script.
-          # Test for the usual locale name.
-          if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-            gt_cv_locale_fr_utf8=fr_FR
-          else
-            # Test for the locale name with explicit encoding suffix.
-            if (LC_ALL=fr_FR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-              gt_cv_locale_fr_utf8=fr_FR.UTF-8
-            else
-              # Test for the Solaris 7 locale name.
-              if (LC_ALL=fr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
-                gt_cv_locale_fr_utf8=fr.UTF-8
-              else
-                # None found.
-                gt_cv_locale_fr_utf8=none
-              fi
-            fi
-          fi
-          ;;
-      esac
-    fi
-    rm -fr conftest*
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_fr_utf8" >&5
-$as_echo "$gt_cv_locale_fr_utf8" >&6; }
-  LOCALE_FR_UTF8=$gt_cv_locale_fr_utf8
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'stddef.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
+        gl_cv_absolute_stddef_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
+           gl_header=$gl_cv_absolute_stddef_h
+           gl_cv_next_stddef_h='"'$gl_header'"'
 
-  GNULIB_FFSL=0;
-  GNULIB_FFSLL=0;
-  GNULIB_MEMCHR=0;
-  GNULIB_MEMMEM=0;
-  GNULIB_MEMPCPY=0;
-  GNULIB_MEMRCHR=0;
-  GNULIB_RAWMEMCHR=0;
-  GNULIB_STPCPY=0;
-  GNULIB_STPNCPY=0;
-  GNULIB_STRCHRNUL=0;
-  GNULIB_STRDUP=0;
-  GNULIB_STRNCAT=0;
-  GNULIB_STRNDUP=0;
-  GNULIB_STRNLEN=0;
-  GNULIB_STRPBRK=0;
-  GNULIB_STRSEP=0;
-  GNULIB_STRSTR=0;
-  GNULIB_STRCASESTR=0;
-  GNULIB_STRTOK_R=0;
-  GNULIB_MBSLEN=0;
-  GNULIB_MBSNLEN=0;
-  GNULIB_MBSCHR=0;
-  GNULIB_MBSRCHR=0;
-  GNULIB_MBSSTR=0;
-  GNULIB_MBSCASECMP=0;
-  GNULIB_MBSNCASECMP=0;
-  GNULIB_MBSPCASECMP=0;
-  GNULIB_MBSCASESTR=0;
-  GNULIB_MBSCSPN=0;
-  GNULIB_MBSPBRK=0;
-  GNULIB_MBSSPN=0;
-  GNULIB_MBSSEP=0;
-  GNULIB_MBSTOK_R=0;
-  GNULIB_STRERROR=0;
-  GNULIB_STRERROR_R=0;
-  GNULIB_STRSIGNAL=0;
-  GNULIB_STRVERSCMP=0;
-  HAVE_MBSLEN=0;
-    HAVE_FFSL=1;
-  HAVE_FFSLL=1;
-  HAVE_MEMCHR=1;
-  HAVE_DECL_MEMMEM=1;
-  HAVE_MEMPCPY=1;
-  HAVE_DECL_MEMRCHR=1;
-  HAVE_RAWMEMCHR=1;
-  HAVE_STPCPY=1;
-  HAVE_STPNCPY=1;
-  HAVE_STRCHRNUL=1;
-  HAVE_DECL_STRDUP=1;
-  HAVE_DECL_STRNDUP=1;
-  HAVE_DECL_STRNLEN=1;
-  HAVE_STRPBRK=1;
-  HAVE_STRSEP=1;
-  HAVE_STRCASESTR=1;
-  HAVE_DECL_STRTOK_R=1;
-  HAVE_DECL_STRERROR_R=1;
-  HAVE_DECL_STRSIGNAL=1;
-  HAVE_STRVERSCMP=1;
-  REPLACE_MEMCHR=0;
-  REPLACE_MEMMEM=0;
-  REPLACE_STPNCPY=0;
-  REPLACE_STRDUP=0;
-  REPLACE_STRSTR=0;
-  REPLACE_STRCASESTR=0;
-  REPLACE_STRCHRNUL=0;
-  REPLACE_STRERROR=0;
-  REPLACE_STRERROR_R=0;
-  REPLACE_STRNCAT=0;
-  REPLACE_STRNDUP=0;
-  REPLACE_STRNLEN=0;
-  REPLACE_STRSIGNAL=0;
-  REPLACE_STRTOK_R=0;
-  UNDEFINE_STRTOK_R=0;
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_stddef_h" >&5
+$as_echo "$gl_cv_next_stddef_h" >&6; }
+     fi
+     NEXT_STDDEF_H=$gl_cv_next_stddef_h
 
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'stddef.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_stddef_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_STDDEF_H=$gl_next_as_first_directive
 
 
 
 
+  fi
 
 
 
-  # Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it
-  # fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is
-  # irrelevant for anonymous mappings.
-  ac_fn_c_check_func "$LINENO" "mmap" "ac_cv_func_mmap"
-if test "x$ac_cv_func_mmap" = xyes; then :
-  gl_have_mmap=yes
-else
-  gl_have_mmap=no
-fi
 
+      if test "X$prefix" = "XNONE"; then
+    acl_final_prefix="$ac_default_prefix"
+  else
+    acl_final_prefix="$prefix"
+  fi
+  if test "X$exec_prefix" = "XNONE"; then
+    acl_final_exec_prefix='${prefix}'
+  else
+    acl_final_exec_prefix="$exec_prefix"
+  fi
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
+  prefix="$acl_save_prefix"
 
-  # Try to allow MAP_ANONYMOUS.
-  gl_have_mmap_anonymous=no
-  if test $gl_have_mmap = yes; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for MAP_ANONYMOUS" >&5
-$as_echo_n "checking for MAP_ANONYMOUS... " >&6; }
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-#include <sys/mman.h>
-#ifdef MAP_ANONYMOUS
-    I cant identify this map
-#endif
 
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "I cant identify this map" >/dev/null 2>&1; then :
-  gl_have_mmap_anonymous=yes
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
 fi
-rm -f conftest*
-
-    if test $gl_have_mmap_anonymous != yes; then
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <sys/mman.h>
-#ifdef MAP_ANON
-    I cant identify this map
-#endif
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "I cant identify this map" >/dev/null 2>&1; then :
 
-$as_echo "#define MAP_ANONYMOUS MAP_ANON" >>confdefs.h
-
-         gl_have_mmap_anonymous=yes
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+  # contains only /bin. Note that ksh looks also at the FPATH variable,
+  # so we have to set that as well for the test.
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+           || PATH_SEPARATOR=';'
+       }
 fi
-rm -f conftest*
 
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'`
+      while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do
+        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${acl_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$acl_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      acl_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+        test "$with_gnu_ld" != no && break
+        ;;
+      *)
+        test "$with_gnu_ld" != yes && break
+        ;;
+      esac
     fi
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_have_mmap_anonymous" >&5
-$as_echo "$gl_have_mmap_anonymous" >&6; }
-    if test $gl_have_mmap_anonymous = yes; then
+  done
+  IFS="$acl_save_ifs"
+else
+  acl_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
 
-$as_echo "#define HAVE_MAP_ANONYMOUS 1" >>confdefs.h
+LD="$acl_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${acl_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  acl_cv_prog_gnu_ld=yes
+  ;;
+*)
+  acl_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_prog_gnu_ld" >&5
+$as_echo "$acl_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$acl_cv_prog_gnu_ld
 
-    fi
-  fi
 
 
 
+                                                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shared library run path origin" >&5
+$as_echo_n "checking for shared library run path origin... " >&6; }
+if ${acl_cv_rpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
+    CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
+    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
+    . ./conftest.sh
+    rm -f ./conftest.sh
+    acl_cv_rpath=done
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_rpath" >&5
+$as_echo "$acl_cv_rpath" >&6; }
+  wl="$acl_cv_wl"
+  acl_libext="$acl_cv_libext"
+  acl_shlibext="$acl_cv_shlibext"
+  acl_libname_spec="$acl_cv_libname_spec"
+  acl_library_names_spec="$acl_cv_library_names_spec"
+  acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
+  acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
+  acl_hardcode_direct="$acl_cv_hardcode_direct"
+  acl_hardcode_minus_L="$acl_cv_hardcode_minus_L"
+    # Check whether --enable-rpath was given.
+if test "${enable_rpath+set}" = set; then :
+  enableval=$enable_rpath; :
+else
+  enable_rpath=yes
+fi
 
-  if test $HAVE_MEMCHR = 1; then
-    # Detect platform-specific bugs in some versions of glibc:
-    # memchr should not dereference anything with length 0
-    #   http://bugzilla.redhat.com/499689
-    # memchr should not dereference overestimated length after a match
-    #   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737
-    #   http://sourceware.org/bugzilla/show_bug.cgi?id=10162
-    # Assume that memchr works on platforms that lack mprotect.
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether memchr works" >&5
-$as_echo_n "checking whether memchr works... " >&6; }
-if ${gl_cv_func_memchr_works+:} false; then :
+
+
+
+  acl_libdirstem=lib
+  acl_libdirstem2=
+  case "$host_os" in
+    solaris*)
+                                    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit host" >&5
+$as_echo_n "checking for 64-bit host... " >&6; }
+if ${gl_cv_solaris_64bit+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  if test "$cross_compiling" = yes; then :
-         gl_cv_func_memchr_works="guessing no"
-else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#include <string.h>
-#if HAVE_SYS_MMAN_H
-# include <fcntl.h>
-# include <unistd.h>
-# include <sys/types.h>
-# include <sys/mman.h>
-# ifndef MAP_FILE
-#  define MAP_FILE 0
-# endif
+#ifdef _LP64
+sixtyfour bits
 #endif
 
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "sixtyfour bits" >/dev/null 2>&1; then :
+  gl_cv_solaris_64bit=yes
+else
+  gl_cv_solaris_64bit=no
+fi
+rm -f conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_solaris_64bit" >&5
+$as_echo "$gl_cv_solaris_64bit" >&6; }
+      if test $gl_cv_solaris_64bit = yes; then
+        acl_libdirstem=lib/64
+        case "$host_cpu" in
+          sparc*)        acl_libdirstem2=lib/sparcv9 ;;
+          i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
+        esac
+      fi
+      ;;
+    *)
+      searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+      if test -n "$searchpath"; then
+        acl_save_IFS="${IFS= 	}"; IFS=":"
+        for searchdir in $searchpath; do
+          if test -d "$searchdir"; then
+            case "$searchdir" in
+              */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
+              */../ | */.. )
+                # Better ignore directories of this form. They are misleading.
+                ;;
+              *) searchdir=`cd "$searchdir" && pwd`
+                 case "$searchdir" in
+                   */lib64 ) acl_libdirstem=lib64 ;;
+                 esac ;;
+            esac
+          fi
+        done
+        IFS="$acl_save_IFS"
+      fi
+      ;;
+  esac
+  test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+
+
+
+  gl_threads_api=none
+  LIBTHREAD=
+  LTLIBTHREAD=
+  LIBMULTITHREAD=
+  LTLIBMULTITHREAD=
+  if test "$gl_use_threads" != no; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether imported symbols can be declared weak" >&5
+$as_echo_n "checking whether imported symbols can be declared weak... " >&6; }
+if ${gl_cv_have_weak+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  gl_cv_have_weak=no
+              cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+extern void xyzzy ();
+#pragma weak xyzzy
 int
 main ()
 {
-
-  int result = 0;
-  char *fence = NULL;
-#if HAVE_SYS_MMAN_H && HAVE_MPROTECT
-# if HAVE_MAP_ANONYMOUS
-  const int flags = MAP_ANONYMOUS | MAP_PRIVATE;
-  const int fd = -1;
-# else /* !HAVE_MAP_ANONYMOUS */
-  const int flags = MAP_FILE | MAP_PRIVATE;
-  int fd = open ("/dev/zero", O_RDONLY, 0666);
-  if (fd >= 0)
-# endif
-    {
-      int pagesize = getpagesize ();
-      char *two_pages =
-        (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE,
-                       flags, fd, 0);
-      if (two_pages != (char *)(-1)
-          && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0)
-        fence = two_pages + pagesize;
-    }
-#endif
-  if (fence)
-    {
-      if (memchr (fence, 0, 0))
-        result |= 1;
-      strcpy (fence - 9, "12345678");
-      if (memchr (fence - 9, 0, 79) != fence - 1)
-        result |= 2;
-      if (memchr (fence - 1, 0, 3) != fence - 1)
-        result |= 4;
-    }
-  return result;
-
+xyzzy();
   ;
   return 0;
 }
 _ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_cv_have_weak=maybe
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+       if test $gl_cv_have_weak = maybe; then
+                           if test "$cross_compiling" = yes; then :
+                          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __ELF__
+               Extensible Linking Format
+               #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "Extensible Linking Format" >/dev/null 2>&1; then :
+  gl_cv_have_weak="guessing yes"
+else
+  gl_cv_have_weak="guessing no"
+fi
+rm -f conftest*
+
+
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <stdio.h>
+#pragma weak fputs
+int main ()
+{
+  return (fputs == NULL);
+}
+_ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_memchr_works=yes
+  gl_cv_have_weak=yes
 else
-  gl_cv_func_memchr_works=no
+  gl_cv_have_weak=no
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_memchr_works" >&5
-$as_echo "$gl_cv_func_memchr_works" >&6; }
-    if test "$gl_cv_func_memchr_works" != yes; then
-      REPLACE_MEMCHR=1
-    fi
-  fi
+       fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C/C++ restrict keyword" >&5
-$as_echo_n "checking for C/C++ restrict keyword... " >&6; }
-if ${ac_cv_c_restrict+:} false; then :
-  $as_echo_n "(cached) " >&6
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_have_weak" >&5
+$as_echo "$gl_cv_have_weak" >&6; }
+    if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
+      # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that
+      # it groks <pthread.h>. It's added above, in gl_THREADLIB_EARLY_BODY.
+      ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+if test "x$ac_cv_header_pthread_h" = xyes; then :
+  gl_have_pthread_h=yes
 else
-  ac_cv_c_restrict=no
-   # The order here caters to the fact that C++ does not require restrict.
-   for ac_kw in __restrict __restrict__ _Restrict restrict; do
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_have_pthread_h=no
+fi
+
+
+      if test "$gl_have_pthread_h" = yes; then
+        # Other possible tests:
+        #   -lpthreads (FSU threads, PCthreads)
+        #   -lgthreads
+        gl_have_pthread=
+        # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist
+        # in libc. IRIX 6.5 has the first one in both libc and libpthread, but
+        # the second one only in libpthread, and lock.c needs it.
+        #
+        # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04
+        # needs -pthread for some reason.  See:
+        # http://lists.gnu.org/archive/html/bug-gnulib/2014-09/msg00023.html
+        save_LIBS=$LIBS
+        for gl_pthread in '' '-pthread'; do
+          LIBS="$LIBS $gl_pthread"
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-typedef int * int_ptr;
-	int foo (int_ptr $ac_kw ip) {
-	return ip[0];
-       }
+#include <pthread.h>
+                 pthread_mutex_t m;
+                 pthread_mutexattr_t ma;
+
 int
 main ()
 {
-int s[1];
-	int * $ac_kw t = s;
-	t[0] = 0;
-	return foo(t)
+pthread_mutex_lock (&m);
+                 pthread_mutexattr_init (&ma);
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_c_restrict=$ac_kw
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_have_pthread=yes
+             LIBTHREAD=$gl_pthread LTLIBTHREAD=$gl_pthread
+             LIBMULTITHREAD=$gl_pthread LTLIBMULTITHREAD=$gl_pthread
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-     test "$ac_cv_c_restrict" != no && break
-   done
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+          LIBS=$save_LIBS
+          test -n "$gl_have_pthread" && break
+        done
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_restrict" >&5
-$as_echo "$ac_cv_c_restrict" >&6; }
+        # Test for libpthread by looking for pthread_kill. (Not pthread_self,
+        # since it is defined as a macro on OSF/1.)
+        if test -n "$gl_have_pthread" && test -z "$LIBTHREAD"; then
+          # The program links fine without libpthread. But it may actually
+          # need to link with libpthread in order to create multiple threads.
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lpthread" >&5
+$as_echo_n "checking for pthread_kill in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_kill+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
- case $ac_cv_c_restrict in
-   restrict) ;;
-   no) $as_echo "#define restrict /**/" >>confdefs.h
- ;;
-   *)  cat >>confdefs.h <<_ACEOF
-#define restrict $ac_cv_c_restrict
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_kill ();
+int
+main ()
+{
+return pthread_kill ();
+  ;
+  return 0;
+}
 _ACEOF
- ;;
- esac
-
-ac_fn_c_check_decl "$LINENO" "memrchr" "ac_cv_have_decl_memrchr" "$ac_includes_default"
-if test "x$ac_cv_have_decl_memrchr" = xyes; then :
-  ac_have_decl=1
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread_pthread_kill=yes
 else
-  ac_have_decl=0
+  ac_cv_lib_pthread_pthread_kill=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
 fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_kill" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_kill" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_kill" = xyes; then :
+  LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread
+             # On Solaris and HP-UX, most pthread functions exist also in libc.
+             # Therefore pthread_in_use() needs to actually try to create a
+             # thread: pthread_create from libc will fail, whereas
+             # pthread_create will actually create a thread.
+             # On Solaris 10 or newer, this test is no longer needed, because
+             # libc contains the fully functional pthread functions.
+             case "$host_os" in
+               solaris | solaris2.1-9 | solaris2.1-9.* | hpux*)
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_MEMRCHR $ac_have_decl
-_ACEOF
+$as_echo "#define PTHREAD_IN_USE_DETECTION_HARD 1" >>confdefs.h
 
+             esac
 
+fi
 
+        elif test -z "$gl_have_pthread"; then
+          # Some library is needed. Try libpthread and libc_r.
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lpthread" >&5
+$as_echo_n "checking for pthread_kill in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_kill+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_kill ();
+int
+main ()
+{
+return pthread_kill ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread_pthread_kill=yes
+else
+  ac_cv_lib_pthread_pthread_kill=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_kill" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_kill" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_kill" = xyes; then :
+  gl_have_pthread=yes
+             LIBTHREAD=-lpthread LTLIBTHREAD=-lpthread
+             LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread
+fi
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for promoted mode_t type" >&5
-$as_echo_n "checking for promoted mode_t type... " >&6; }
-if ${gl_cv_promoted_mode_t+:} false; then :
+          if test -z "$gl_have_pthread"; then
+            # For FreeBSD 4.
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lc_r" >&5
+$as_echo_n "checking for pthread_kill in -lc_r... " >&6; }
+if ${ac_cv_lib_c_r_pthread_kill+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc_r  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <sys/types.h>
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_kill ();
 int
 main ()
 {
-typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];
+return pthread_kill ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_promoted_mode_t='int'
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_r_pthread_kill=yes
 else
-  gl_cv_promoted_mode_t='mode_t'
+  ac_cv_lib_c_r_pthread_kill=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_kill" >&5
+$as_echo "$ac_cv_lib_c_r_pthread_kill" >&6; }
+if test "x$ac_cv_lib_c_r_pthread_kill" = xyes; then :
+  gl_have_pthread=yes
+               LIBTHREAD=-lc_r LTLIBTHREAD=-lc_r
+               LIBMULTITHREAD=-lc_r LTLIBMULTITHREAD=-lc_r
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_promoted_mode_t" >&5
-$as_echo "$gl_cv_promoted_mode_t" >&6; }
 
-cat >>confdefs.h <<_ACEOF
-#define PROMOTED_MODE_T $gl_cv_promoted_mode_t
+          fi
+        fi
+        if test -n "$gl_have_pthread"; then
+          gl_threads_api=posix
+
+$as_echo "#define USE_POSIX_THREADS 1" >>confdefs.h
+
+          if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
+            if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
+
+$as_echo "#define USE_POSIX_THREADS_WEAK 1" >>confdefs.h
+
+              LIBTHREAD=
+              LTLIBTHREAD=
+            fi
+          fi
+        fi
+      fi
+    fi
+    if test -z "$gl_have_pthread"; then
+      if test "$gl_use_threads" = yes || test "$gl_use_threads" = solaris; then
+        gl_have_solaristhread=
+        gl_save_LIBS="$LIBS"
+        LIBS="$LIBS -lthread"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <thread.h>
+#include <synch.h>
+
+int
+main ()
+{
+thr_self();
+  ;
+  return 0;
+}
 _ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_have_solaristhread=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        LIBS="$gl_save_LIBS"
+        if test -n "$gl_have_solaristhread"; then
+          gl_threads_api=solaris
+          LIBTHREAD=-lthread
+          LTLIBTHREAD=-lthread
+          LIBMULTITHREAD="$LIBTHREAD"
+          LTLIBMULTITHREAD="$LTLIBTHREAD"
 
+$as_echo "#define USE_SOLARIS_THREADS 1" >>confdefs.h
 
+          if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
 
+$as_echo "#define USE_SOLARIS_THREADS_WEAK 1" >>confdefs.h
 
+            LIBTHREAD=
+            LTLIBTHREAD=
+          fi
+        fi
+      fi
+    fi
+    if test "$gl_use_threads" = pth; then
+      gl_save_CPPFLAGS="$CPPFLAGS"
 
 
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libpth" >&5
+$as_echo_n "checking how to link with libpth... " >&6; }
+if ${ac_cv_libpth_libs+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
 
 
@@ -13999,239 +15503,1125 @@ _ACEOF
 
 
 
+    use_additional=yes
 
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
 
-  gl_cv_func_vfprintf_posix=no
-  case "$gl_cv_func_printf_sizes_c99" in
-    *yes)
-      case "$gl_cv_func_printf_long_double" in
-        *yes)
-          case "$gl_cv_func_printf_infinite" in
-            *yes)
-              case "$gl_cv_func_printf_infinite_long_double" in
-                *yes)
-                  case "$gl_cv_func_printf_directive_a" in
-                    *yes)
-                      case "$gl_cv_func_printf_directive_f" in
-                        *yes)
-                          case "$gl_cv_func_printf_directive_n" in
-                            *yes)
-                              case "$gl_cv_func_printf_directive_ls" in
-                                *yes)
-                                  case "$gl_cv_func_printf_positions" in
-                                    *yes)
-                                      case "$gl_cv_func_printf_flag_grouping" in
-                                        *yes)
-                                          case "$gl_cv_func_printf_flag_leftadjust" in
-                                            *yes)
-                                              case "$gl_cv_func_printf_flag_zero" in
-                                                *yes)
-                                                  case "$gl_cv_func_printf_precision" in
-                                                    *yes)
-                                                      case "$gl_cv_func_printf_enomem" in
-                                                        *yes)
-                                                          # vfprintf exists and is
-                                                          # already POSIX compliant.
-                                                          gl_cv_func_vfprintf_posix=yes
-                                                          ;;
-                                                      esac
-                                                      ;;
-                                                  esac
-                                                  ;;
-                                              esac
-                                              ;;
-                                          esac
-                                          ;;
-                                      esac
-                                      ;;
-                                  esac
-                                  ;;
-                              esac
-                              ;;
-                          esac
-                          ;;
-                      esac
-                      ;;
-                  esac
-                  ;;
-              esac
-              ;;
-          esac
-          ;;
-      esac
-      ;;
-  esac
-  if test $gl_cv_func_vfprintf_posix = no; then
+    eval additional_includedir=\"$includedir\"
+    eval additional_libdir=\"$libdir\"
 
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
 
-  case "$gl_cv_func_printf_infinite" in
-    *yes)
-      ;;
-    *)
+# Check whether --with-libpth-prefix was given.
+if test "${with_libpth_prefix+set}" = set; then :
+  withval=$with_libpth_prefix;
+    if test "X$withval" = "Xno"; then
+      use_additional=no
+    else
+      if test "X$withval" = "X"; then
 
-$as_echo "#define NEED_PRINTF_INFINITE_DOUBLE 1" >>confdefs.h
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
 
-      ;;
-  esac
+          eval additional_includedir=\"$includedir\"
+          eval additional_libdir=\"$libdir\"
 
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
+      else
+        additional_includedir="$withval/include"
+        additional_libdir="$withval/$acl_libdirstem"
+        if test "$acl_libdirstem2" != "$acl_libdirstem" \
+           && ! test -d "$withval/$acl_libdirstem"; then
+          additional_libdir="$withval/$acl_libdirstem2"
+        fi
+      fi
+    fi
 
+fi
 
-  case "$gl_cv_func_printf_long_double" in
-    *yes)
-      case "$gl_cv_func_printf_infinite_long_double" in
-        *yes)
-          ;;
-        *)
+      LIBPTH=
+  LTLIBPTH=
+  INCPTH=
+  LIBPTH_PREFIX=
+      HAVE_LIBPTH=
+  rpathdirs=
+  ltrpathdirs=
+  names_already_handled=
+  names_next_round='pth '
+  while test -n "$names_next_round"; do
+    names_this_round="$names_next_round"
+    names_next_round=
+    for name in $names_this_round; do
+      already_handled=
+      for n in $names_already_handled; do
+        if test "$n" = "$name"; then
+          already_handled=yes
+          break
+        fi
+      done
+      if test -z "$already_handled"; then
+        names_already_handled="$names_already_handled $name"
+                        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'`
+        eval value=\"\$HAVE_LIB$uppername\"
+        if test -n "$value"; then
+          if test "$value" = yes; then
+            eval value=\"\$LIB$uppername\"
+            test -z "$value" || LIBPTH="${LIBPTH}${LIBPTH:+ }$value"
+            eval value=\"\$LTLIB$uppername\"
+            test -z "$value" || LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }$value"
+          else
+                                    :
+          fi
+        else
+                              found_dir=
+          found_la=
+          found_so=
+          found_a=
+          eval libname=\"$acl_libname_spec\"    # typically: libname=lib$name
+          if test -n "$acl_shlibext"; then
+            shrext=".$acl_shlibext"             # typically: shrext=.so
+          else
+            shrext=
+          fi
+          if test $use_additional = yes; then
+            dir="$additional_libdir"
+                                    if test -n "$acl_shlibext"; then
+              if test -f "$dir/$libname$shrext"; then
+                found_dir="$dir"
+                found_so="$dir/$libname$shrext"
+              else
+                if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
+                  ver=`(cd "$dir" && \
+                        for f in "$libname$shrext".*; do echo "$f"; done \
+                        | sed -e "s,^$libname$shrext\\\\.,," \
+                        | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
+                        | sed 1q ) 2>/dev/null`
+                  if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
+                    found_dir="$dir"
+                    found_so="$dir/$libname$shrext.$ver"
+                  fi
+                else
+                  eval library_names=\"$acl_library_names_spec\"
+                  for f in $library_names; do
+                    if test -f "$dir/$f"; then
+                      found_dir="$dir"
+                      found_so="$dir/$f"
+                      break
+                    fi
+                  done
+                fi
+              fi
+            fi
+                        if test "X$found_dir" = "X"; then
+              if test -f "$dir/$libname.$acl_libext"; then
+                found_dir="$dir"
+                found_a="$dir/$libname.$acl_libext"
+              fi
+            fi
+            if test "X$found_dir" != "X"; then
+              if test -f "$dir/$libname.la"; then
+                found_la="$dir/$libname.la"
+              fi
+            fi
+          fi
+          if test "X$found_dir" = "X"; then
+            for x in $LDFLAGS $LTLIBPTH; do
 
-$as_echo "#define NEED_PRINTF_INFINITE_LONG_DOUBLE 1" >>confdefs.h
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-          ;;
-      esac
-      ;;
-  esac
+              case "$x" in
+                -L*)
+                  dir=`echo "X$x" | sed -e 's/^X-L//'`
+                                    if test -n "$acl_shlibext"; then
+                    if test -f "$dir/$libname$shrext"; then
+                      found_dir="$dir"
+                      found_so="$dir/$libname$shrext"
+                    else
+                      if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
+                        ver=`(cd "$dir" && \
+                              for f in "$libname$shrext".*; do echo "$f"; done \
+                              | sed -e "s,^$libname$shrext\\\\.,," \
+                              | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
+                              | sed 1q ) 2>/dev/null`
+                        if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
+                          found_dir="$dir"
+                          found_so="$dir/$libname$shrext.$ver"
+                        fi
+                      else
+                        eval library_names=\"$acl_library_names_spec\"
+                        for f in $library_names; do
+                          if test -f "$dir/$f"; then
+                            found_dir="$dir"
+                            found_so="$dir/$f"
+                            break
+                          fi
+                        done
+                      fi
+                    fi
+                  fi
+                                    if test "X$found_dir" = "X"; then
+                    if test -f "$dir/$libname.$acl_libext"; then
+                      found_dir="$dir"
+                      found_a="$dir/$libname.$acl_libext"
+                    fi
+                  fi
+                  if test "X$found_dir" != "X"; then
+                    if test -f "$dir/$libname.la"; then
+                      found_la="$dir/$libname.la"
+                    fi
+                  fi
+                  ;;
+              esac
+              if test "X$found_dir" != "X"; then
+                break
+              fi
+            done
+          fi
+          if test "X$found_dir" != "X"; then
+                        LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-L$found_dir -l$name"
+            if test "X$found_so" != "X"; then
+                                                        if test "$enable_rpath" = no \
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem" \
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then
+                                LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
+              else
+                                                                                haveit=
+                for x in $ltrpathdirs; do
+                  if test "X$x" = "X$found_dir"; then
+                    haveit=yes
+                    break
+                  fi
+                done
+                if test -z "$haveit"; then
+                  ltrpathdirs="$ltrpathdirs $found_dir"
+                fi
+                                if test "$acl_hardcode_direct" = yes; then
+                                                      LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
+                else
+                  if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then
+                                                            LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
+                                                            haveit=
+                    for x in $rpathdirs; do
+                      if test "X$x" = "X$found_dir"; then
+                        haveit=yes
+                        break
+                      fi
+                    done
+                    if test -z "$haveit"; then
+                      rpathdirs="$rpathdirs $found_dir"
+                    fi
+                  else
+                                                                                haveit=
+                    for x in $LDFLAGS $LIBPTH; do
 
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+                      if test "X$x" = "X-L$found_dir"; then
+                        haveit=yes
+                        break
+                      fi
+                    done
+                    if test -z "$haveit"; then
+                      LIBPTH="${LIBPTH}${LIBPTH:+ }-L$found_dir"
+                    fi
+                    if test "$acl_hardcode_minus_L" != no; then
+                                                                                        LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
+                    else
+                                                                                                                                                                                LIBPTH="${LIBPTH}${LIBPTH:+ }-l$name"
+                    fi
+                  fi
+                fi
+              fi
+            else
+              if test "X$found_a" != "X"; then
+                                LIBPTH="${LIBPTH}${LIBPTH:+ }$found_a"
+              else
+                                                LIBPTH="${LIBPTH}${LIBPTH:+ }-L$found_dir -l$name"
+              fi
+            fi
+                        additional_includedir=
+            case "$found_dir" in
+              */$acl_libdirstem | */$acl_libdirstem/)
+                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
+                if test "$name" = 'pth'; then
+                  LIBPTH_PREFIX="$basedir"
+                fi
+                additional_includedir="$basedir/include"
+                ;;
+              */$acl_libdirstem2 | */$acl_libdirstem2/)
+                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'`
+                if test "$name" = 'pth'; then
+                  LIBPTH_PREFIX="$basedir"
+                fi
+                additional_includedir="$basedir/include"
+                ;;
+            esac
+            if test "X$additional_includedir" != "X"; then
+                                                                                                                if test "X$additional_includedir" != "X/usr/include"; then
+                haveit=
+                if test "X$additional_includedir" = "X/usr/local/include"; then
+                  if test -n "$GCC"; then
+                    case $host_os in
+                      linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+                    esac
+                  fi
+                fi
+                if test -z "$haveit"; then
+                  for x in $CPPFLAGS $INCPTH; do
 
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-  case "$gl_cv_func_printf_directive_a" in
-    *yes)
-      ;;
-    *)
+                    if test "X$x" = "X-I$additional_includedir"; then
+                      haveit=yes
+                      break
+                    fi
+                  done
+                  if test -z "$haveit"; then
+                    if test -d "$additional_includedir"; then
+                                            INCPTH="${INCPTH}${INCPTH:+ }-I$additional_includedir"
+                    fi
+                  fi
+                fi
+              fi
+            fi
+                        if test -n "$found_la"; then
+                                                        save_libdir="$libdir"
+              case "$found_la" in
+                */* | *\\*) . "$found_la" ;;
+                *) . "./$found_la" ;;
+              esac
+              libdir="$save_libdir"
+                            for dep in $dependency_libs; do
+                case "$dep" in
+                  -L*)
+                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+                                                                                                                                                                if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \
+                       && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then
+                      haveit=
+                      if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \
+                         || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then
+                        if test -n "$GCC"; then
+                          case $host_os in
+                            linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+                          esac
+                        fi
+                      fi
+                      if test -z "$haveit"; then
+                        haveit=
+                        for x in $LDFLAGS $LIBPTH; do
 
-$as_echo "#define NEED_PRINTF_DIRECTIVE_A 1" >>confdefs.h
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-      for ac_func in nl_langinfo
-do :
-  ac_fn_c_check_func "$LINENO" "nl_langinfo" "ac_cv_func_nl_langinfo"
-if test "x$ac_cv_func_nl_langinfo" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_NL_LANGINFO 1
-_ACEOF
+                          if test "X$x" = "X-L$additional_libdir"; then
+                            haveit=yes
+                            break
+                          fi
+                        done
+                        if test -z "$haveit"; then
+                          if test -d "$additional_libdir"; then
+                                                        LIBPTH="${LIBPTH}${LIBPTH:+ }-L$additional_libdir"
+                          fi
+                        fi
+                        haveit=
+                        for x in $LDFLAGS $LTLIBPTH; do
 
-fi
-done
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-      ;;
-  esac
+                          if test "X$x" = "X-L$additional_libdir"; then
+                            haveit=yes
+                            break
+                          fi
+                        done
+                        if test -z "$haveit"; then
+                          if test -d "$additional_libdir"; then
+                                                        LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-L$additional_libdir"
+                          fi
+                        fi
+                      fi
+                    fi
+                    ;;
+                  -R*)
+                    dir=`echo "X$dep" | sed -e 's/^X-R//'`
+                    if test "$enable_rpath" != no; then
+                                                                  haveit=
+                      for x in $rpathdirs; do
+                        if test "X$x" = "X$dir"; then
+                          haveit=yes
+                          break
+                        fi
+                      done
+                      if test -z "$haveit"; then
+                        rpathdirs="$rpathdirs $dir"
+                      fi
+                                                                  haveit=
+                      for x in $ltrpathdirs; do
+                        if test "X$x" = "X$dir"; then
+                          haveit=yes
+                          break
+                        fi
+                      done
+                      if test -z "$haveit"; then
+                        ltrpathdirs="$ltrpathdirs $dir"
+                      fi
+                    fi
+                    ;;
+                  -l*)
+                                        names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
+                    ;;
+                  *.la)
+                                                                                names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
+                    ;;
+                  *)
+                                        LIBPTH="${LIBPTH}${LIBPTH:+ }$dep"
+                    LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }$dep"
+                    ;;
+                esac
+              done
+            fi
+          else
+                                                            LIBPTH="${LIBPTH}${LIBPTH:+ }-l$name"
+            LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-l$name"
+          fi
+        fi
+      fi
+    done
+  done
+  if test "X$rpathdirs" != "X"; then
+    if test -n "$acl_hardcode_libdir_separator"; then
+                        alldirs=
+      for found_dir in $rpathdirs; do
+        alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir"
+      done
+            acl_save_libdir="$libdir"
+      libdir="$alldirs"
+      eval flag=\"$acl_hardcode_libdir_flag_spec\"
+      libdir="$acl_save_libdir"
+      LIBPTH="${LIBPTH}${LIBPTH:+ }$flag"
+    else
+            for found_dir in $rpathdirs; do
+        acl_save_libdir="$libdir"
+        libdir="$found_dir"
+        eval flag=\"$acl_hardcode_libdir_flag_spec\"
+        libdir="$acl_save_libdir"
+        LIBPTH="${LIBPTH}${LIBPTH:+ }$flag"
+      done
+    fi
+  fi
+  if test "X$ltrpathdirs" != "X"; then
+            for found_dir in $ltrpathdirs; do
+      LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-R$found_dir"
+    done
+  fi
 
 
 
-  case "$gl_cv_func_printf_directive_f" in
-    *yes)
-      ;;
-    *)
 
-$as_echo "#define NEED_PRINTF_DIRECTIVE_F 1" >>confdefs.h
 
-      ;;
-  esac
 
+    ac_cv_libpth_libs="$LIBPTH"
+    ac_cv_libpth_ltlibs="$LTLIBPTH"
+    ac_cv_libpth_cppflags="$INCPTH"
+    ac_cv_libpth_prefix="$LIBPTH_PREFIX"
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_libpth_libs" >&5
+$as_echo "$ac_cv_libpth_libs" >&6; }
+  LIBPTH="$ac_cv_libpth_libs"
+  LTLIBPTH="$ac_cv_libpth_ltlibs"
+  INCPTH="$ac_cv_libpth_cppflags"
+  LIBPTH_PREFIX="$ac_cv_libpth_prefix"
 
-  case "$gl_cv_func_printf_directive_ls" in
-    *yes)
-      ;;
-    *)
+  for element in $INCPTH; do
+    haveit=
+    for x in $CPPFLAGS; do
 
-$as_echo "#define NEED_PRINTF_DIRECTIVE_LS 1" >>confdefs.h
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
 
-      ;;
-  esac
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+    fi
+  done
 
 
 
-  case "$gl_cv_func_printf_flag_grouping" in
-    *yes)
-      ;;
-    *)
 
-$as_echo "#define NEED_PRINTF_FLAG_GROUPING 1" >>confdefs.h
+      HAVE_LIBPTH=yes
 
-      ;;
-  esac
 
 
+      gl_have_pth=
+      gl_save_LIBS="$LIBS"
+      LIBS="$LIBS $LIBPTH"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <pth.h>
+int
+main ()
+{
+pth_self();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_have_pth=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      LIBS="$gl_save_LIBS"
+      if test -n "$gl_have_pth"; then
+        gl_threads_api=pth
+        LIBTHREAD="$LIBPTH"
+        LTLIBTHREAD="$LTLIBPTH"
+        LIBMULTITHREAD="$LIBTHREAD"
+        LTLIBMULTITHREAD="$LTLIBTHREAD"
 
-  case "$gl_cv_func_printf_flag_leftadjust" in
-    *yes)
-      ;;
-    *)
+$as_echo "#define USE_PTH_THREADS 1" >>confdefs.h
 
-$as_echo "#define NEED_PRINTF_FLAG_LEFTADJUST 1" >>confdefs.h
+        if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
+          if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
 
-      ;;
-  esac
+$as_echo "#define USE_PTH_THREADS_WEAK 1" >>confdefs.h
 
+            LIBTHREAD=
+            LTLIBTHREAD=
+          fi
+        fi
+      else
+        CPPFLAGS="$gl_save_CPPFLAGS"
+      fi
+    fi
+    if test -z "$gl_have_pthread"; then
+      case "$gl_use_threads" in
+        yes | windows | win32) # The 'win32' is for backward compatibility.
+          if { case "$host_os" in
+                 mingw*) true;;
+                 *) false;;
+               esac
+             }; then
+            gl_threads_api=windows
 
+$as_echo "#define USE_WINDOWS_THREADS 1" >>confdefs.h
 
-  case "$gl_cv_func_printf_flag_zero" in
-    *yes)
-      ;;
-    *)
+          fi
+          ;;
+      esac
+    fi
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for multithread API to use" >&5
+$as_echo_n "checking for multithread API to use... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_threads_api" >&5
+$as_echo "$gl_threads_api" >&6; }
 
-$as_echo "#define NEED_PRINTF_FLAG_ZERO 1" >>confdefs.h
 
-      ;;
-  esac
 
 
 
-  case "$gl_cv_func_printf_precision" in
-    *yes)
-      ;;
-    *)
 
-$as_echo "#define NEED_PRINTF_UNBOUNDED_PRECISION 1" >>confdefs.h
 
 
-$as_echo "#define NEED_PRINTF_DOUBLE 1" >>confdefs.h
 
 
-$as_echo "#define NEED_PRINTF_LONG_DOUBLE 1" >>confdefs.h
 
-      ;;
-  esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
 
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
 
-  case "$gl_cv_func_printf_enomem" in
-    *yes)
-      ;;
-    *)
 
-$as_echo "#define NEED_PRINTF_ENOMEM 1" >>confdefs.h
 
 
-$as_echo "#define NEED_PRINTF_DOUBLE 1" >>confdefs.h
 
 
-$as_echo "#define NEED_PRINTF_LONG_DOUBLE 1" >>confdefs.h
 
-      ;;
-  esac
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a traditional japanese locale" >&5
+$as_echo_n "checking for a traditional japanese locale... " >&6; }
+if ${gt_cv_locale_ja+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <locale.h>
+#include <time.h>
+#if HAVE_LANGINFO_CODESET
+# include <langinfo.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+struct tm t;
+char buf[16];
+int main ()
+{
+  const char *p;
+  /* Check whether the given locale name is recognized by the system.  */
+#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+  /* On native Windows, setlocale(category, "") looks at the system settings,
+     not at the environment variables.  Also, when an encoding suffix such
+     as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
+     category of the locale to "C".  */
+  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
+      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
+    return 1;
+#else
+  if (setlocale (LC_ALL, "") == NULL) return 1;
+#endif
+  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
+     On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
+     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
+     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
+     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
+     some unit tests fail.
+     On MirBSD 10, when an unsupported locale is specified, setlocale()
+     succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
+#if HAVE_LANGINFO_CODESET
+  {
+    const char *cs = nl_langinfo (CODESET);
+    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
+        || strcmp (cs, "UTF-8") == 0)
+      return 1;
+  }
+#endif
+#ifdef __CYGWIN__
+  /* On Cygwin, avoid locale names without encoding suffix, because the
+     locale_charset() function relies on the encoding suffix.  Note that
+     LC_ALL is set on the command line.  */
+  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
+#endif
+  /* Check whether MB_CUR_MAX is > 1.  This excludes the dysfunctional locales
+     on Cygwin 1.5.x.  */
+  if (MB_CUR_MAX == 1)
+    return 1;
+  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
+     This excludes the UTF-8 encoding (except on MirBSD).  */
+  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
+  for (p = buf; *p != '\0'; p++)
+    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
+      return 1;
+  return 0;
+}
+
+_ACEOF
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+      case "$host_os" in
+        # Handle native Windows specially, because there setlocale() interprets
+        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
+        # "fr" or "fra" as "French" or "French_France.1252",
+        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
+        # "ja" as "Japanese" or "Japanese_Japan.932",
+        # and similar.
+        mingw*)
+          # Note that on native Windows, the Japanese locale is
+          # Japanese_Japan.932, and CP932 is very different from EUC-JP, so we
+          # cannot use it here.
+          gt_cv_locale_ja=none
+          ;;
+        *)
+          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+          # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
+          # configure script would override the LC_ALL setting. Likewise for
+          # LC_CTYPE, which is also set at the beginning of the configure script.
+          # Test for the AIX locale name.
+          if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+            gt_cv_locale_ja=ja_JP
+          else
+            # Test for the locale name with explicit encoding suffix.
+            if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+              gt_cv_locale_ja=ja_JP.EUC-JP
+            else
+              # Test for the HP-UX, OSF/1, NetBSD locale name.
+              if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+                gt_cv_locale_ja=ja_JP.eucJP
+              else
+                # Test for the IRIX, FreeBSD locale name.
+                if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+                  gt_cv_locale_ja=ja_JP.EUC
+                else
+                  # Test for the Solaris 7 locale name.
+                  if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+                    gt_cv_locale_ja=ja
+                  else
+                    # Special test for NetBSD 1.6.
+                    if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then
+                      gt_cv_locale_ja=ja_JP.eucJP
+                    else
+                      # None found.
+                      gt_cv_locale_ja=none
+                    fi
+                  fi
+                fi
+              fi
+            fi
+          fi
+          ;;
+      esac
+    fi
+    rm -fr conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_ja" >&5
+$as_echo "$gt_cv_locale_ja" >&6; }
+  LOCALE_JA=$gt_cv_locale_ja
+
+
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a transitional chinese locale" >&5
+$as_echo_n "checking for a transitional chinese locale... " >&6; }
+if ${gt_cv_locale_zh_CN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <locale.h>
+#include <stdlib.h>
+#include <time.h>
+#if HAVE_LANGINFO_CODESET
+# include <langinfo.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+struct tm t;
+char buf[16];
+int main ()
+{
+  const char *p;
+  /* Check whether the given locale name is recognized by the system.  */
+#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+  /* On native Windows, setlocale(category, "") looks at the system settings,
+     not at the environment variables.  Also, when an encoding suffix such
+     as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
+     category of the locale to "C".  */
+  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
+      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
+    return 1;
+#else
+  if (setlocale (LC_ALL, "") == NULL) return 1;
+#endif
+  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
+     On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
+     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
+     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
+     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
+     some unit tests fail.
+     On MirBSD 10, when an unsupported locale is specified, setlocale()
+     succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
+#if HAVE_LANGINFO_CODESET
+  {
+    const char *cs = nl_langinfo (CODESET);
+    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
+        || strcmp (cs, "UTF-8") == 0)
+      return 1;
+  }
+#endif
+#ifdef __CYGWIN__
+  /* On Cygwin, avoid locale names without encoding suffix, because the
+     locale_charset() function relies on the encoding suffix.  Note that
+     LC_ALL is set on the command line.  */
+  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
+#endif
+  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
+     This excludes the UTF-8 encoding (except on MirBSD).  */
+  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
+  for (p = buf; *p != '\0'; p++)
+    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
+      return 1;
+  /* Check whether a typical GB18030 multibyte sequence is recognized as a
+     single wide character.  This excludes the GB2312 and GBK encodings.  */
+  if (mblen ("\203\062\332\066", 5) != 4)
+    return 1;
+  return 0;
+}
 
+_ACEOF
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+      case "$host_os" in
+        # Handle native Windows specially, because there setlocale() interprets
+        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
+        # "fr" or "fra" as "French" or "French_France.1252",
+        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
+        # "ja" as "Japanese" or "Japanese_Japan.932",
+        # and similar.
+        mingw*)
+          # Test for the hypothetical native Windows locale name.
+          if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+            gt_cv_locale_zh_CN=Chinese_China.54936
+          else
+            # None found.
+            gt_cv_locale_zh_CN=none
+          fi
+          ;;
+        solaris2.8)
+          # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are
+          # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK.
+          # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core.
+          gt_cv_locale_zh_CN=none
+          ;;
+        *)
+          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+          # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
+          # configure script would override the LC_ALL setting. Likewise for
+          # LC_CTYPE, which is also set at the beginning of the configure script.
+          # Test for the locale name without encoding suffix.
+          if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+            gt_cv_locale_zh_CN=zh_CN
+          else
+            # Test for the locale name with explicit encoding suffix.
+            if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+              gt_cv_locale_zh_CN=zh_CN.GB18030
+            else
+              # None found.
+              gt_cv_locale_zh_CN=none
+            fi
+          fi
+          ;;
+      esac
+    else
+      # If there was a link error, due to mblen(), the system is so old that
+      # it certainly doesn't have a chinese locale.
+      gt_cv_locale_zh_CN=none
+    fi
+    rm -fr conftest*
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_zh_CN" >&5
+$as_echo "$gt_cv_locale_zh_CN" >&6; }
+  LOCALE_ZH_CN=$gt_cv_locale_zh_CN
 
 
-  gl_LIBOBJS="$gl_LIBOBJS vasnprintf.$ac_objext"
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a french Unicode locale" >&5
+$as_echo_n "checking for a french Unicode locale... " >&6; }
+if ${gt_cv_locale_fr_utf8+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#include <locale.h>
+#include <time.h>
+#if HAVE_LANGINFO_CODESET
+# include <langinfo.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+struct tm t;
+char buf[16];
+int main () {
+  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
+     imitates locale dependent behaviour by looking at the environment
+     variables, and all locales use the UTF-8 encoding.  */
+#if !(defined __BEOS__ || defined __HAIKU__)
+  /* Check whether the given locale name is recognized by the system.  */
+# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+  /* On native Windows, setlocale(category, "") looks at the system settings,
+     not at the environment variables.  Also, when an encoding suffix such
+     as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
+     category of the locale to "C".  */
+  if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
+      || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
+    return 1;
+# else
+  if (setlocale (LC_ALL, "") == NULL) return 1;
+# endif
+  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
+     On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
+     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
+     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
+     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
+     some unit tests fail.  */
+# if HAVE_LANGINFO_CODESET
+  {
+    const char *cs = nl_langinfo (CODESET);
+    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0)
+      return 1;
+  }
+# endif
+# ifdef __CYGWIN__
+  /* On Cygwin, avoid locale names without encoding suffix, because the
+     locale_charset() function relies on the encoding suffix.  Note that
+     LC_ALL is set on the command line.  */
+  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
+# endif
+  /* Check whether in the abbreviation of the second month, the second
+     character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is
+     two bytes long, with UTF-8 encoding.  */
+  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+  if (strftime (buf, sizeof (buf), "%b", &t) < 4
+      || buf[1] != (char) 0xc3 || buf[2] != (char) 0xa9 || buf[3] != 'v')
+    return 1;
+#endif
+#if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy.  */
+  /* Check whether the decimal separator is a comma.
+     On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point
+     are nl_langinfo(RADIXCHAR) are both ".".  */
+  if (localeconv () ->decimal_point[0] != ',') return 1;
+#endif
+  return 0;
+}
 
+_ACEOF
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+      case "$host_os" in
+        # Handle native Windows specially, because there setlocale() interprets
+        # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
+        # "fr" or "fra" as "French" or "French_France.1252",
+        # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
+        # "ja" as "Japanese" or "Japanese_Japan.932",
+        # and similar.
+        mingw*)
+          # Test for the hypothetical native Windows locale name.
+          if (LC_ALL=French_France.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+            gt_cv_locale_fr_utf8=French_France.65001
+          else
+            # None found.
+            gt_cv_locale_fr_utf8=none
+          fi
+          ;;
+        *)
+          # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+          # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
+          # configure script would override the LC_ALL setting. Likewise for
+          # LC_CTYPE, which is also set at the beginning of the configure script.
+          # Test for the usual locale name.
+          if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+            gt_cv_locale_fr_utf8=fr_FR
+          else
+            # Test for the locale name with explicit encoding suffix.
+            if (LC_ALL=fr_FR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+              gt_cv_locale_fr_utf8=fr_FR.UTF-8
+            else
+              # Test for the Solaris 7 locale name.
+              if (LC_ALL=fr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+                gt_cv_locale_fr_utf8=fr.UTF-8
+              else
+                # None found.
+                gt_cv_locale_fr_utf8=none
+              fi
+            fi
+          fi
+          ;;
+      esac
+    fi
+    rm -fr conftest*
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_locale_fr_utf8" >&5
+$as_echo "$gt_cv_locale_fr_utf8" >&6; }
+  LOCALE_FR_UTF8=$gt_cv_locale_fr_utf8
 
 
 
-  gl_LIBOBJS="$gl_LIBOBJS printf-args.$ac_objext"
+  GNULIB_FFSL=0;
+  GNULIB_FFSLL=0;
+  GNULIB_MEMCHR=0;
+  GNULIB_MEMMEM=0;
+  GNULIB_MEMPCPY=0;
+  GNULIB_MEMRCHR=0;
+  GNULIB_RAWMEMCHR=0;
+  GNULIB_STPCPY=0;
+  GNULIB_STPNCPY=0;
+  GNULIB_STRCHRNUL=0;
+  GNULIB_STRDUP=0;
+  GNULIB_STRNCAT=0;
+  GNULIB_STRNDUP=0;
+  GNULIB_STRNLEN=0;
+  GNULIB_STRPBRK=0;
+  GNULIB_STRSEP=0;
+  GNULIB_STRSTR=0;
+  GNULIB_STRCASESTR=0;
+  GNULIB_STRTOK_R=0;
+  GNULIB_MBSLEN=0;
+  GNULIB_MBSNLEN=0;
+  GNULIB_MBSCHR=0;
+  GNULIB_MBSRCHR=0;
+  GNULIB_MBSSTR=0;
+  GNULIB_MBSCASECMP=0;
+  GNULIB_MBSNCASECMP=0;
+  GNULIB_MBSPCASECMP=0;
+  GNULIB_MBSCASESTR=0;
+  GNULIB_MBSCSPN=0;
+  GNULIB_MBSPBRK=0;
+  GNULIB_MBSSPN=0;
+  GNULIB_MBSSEP=0;
+  GNULIB_MBSTOK_R=0;
+  GNULIB_STRERROR=0;
+  GNULIB_STRERROR_R=0;
+  GNULIB_STRSIGNAL=0;
+  GNULIB_STRVERSCMP=0;
+  HAVE_MBSLEN=0;
+    HAVE_FFSL=1;
+  HAVE_FFSLL=1;
+  HAVE_MEMCHR=1;
+  HAVE_DECL_MEMMEM=1;
+  HAVE_MEMPCPY=1;
+  HAVE_DECL_MEMRCHR=1;
+  HAVE_RAWMEMCHR=1;
+  HAVE_STPCPY=1;
+  HAVE_STPNCPY=1;
+  HAVE_STRCHRNUL=1;
+  HAVE_DECL_STRDUP=1;
+  HAVE_DECL_STRNDUP=1;
+  HAVE_DECL_STRNLEN=1;
+  HAVE_STRPBRK=1;
+  HAVE_STRSEP=1;
+  HAVE_STRCASESTR=1;
+  HAVE_DECL_STRTOK_R=1;
+  HAVE_DECL_STRERROR_R=1;
+  HAVE_DECL_STRSIGNAL=1;
+  HAVE_STRVERSCMP=1;
+  REPLACE_MEMCHR=0;
+  REPLACE_MEMMEM=0;
+  REPLACE_STPNCPY=0;
+  REPLACE_STRDUP=0;
+  REPLACE_STRSTR=0;
+  REPLACE_STRCASESTR=0;
+  REPLACE_STRCHRNUL=0;
+  REPLACE_STRERROR=0;
+  REPLACE_STRERROR_R=0;
+  REPLACE_STRNCAT=0;
+  REPLACE_STRNDUP=0;
+  REPLACE_STRNLEN=0;
+  REPLACE_STRSIGNAL=0;
+  REPLACE_STRTOK_R=0;
+  UNDEFINE_STRTOK_R=0;
 
 
 
@@ -14241,22 +16631,64 @@ $as_echo "#define NEED_PRINTF_LONG_DOUBL
 
 
 
-  gl_LIBOBJS="$gl_LIBOBJS printf-parse.$ac_objext"
+  # Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it
+  # fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is
+  # irrelevant for anonymous mappings.
+  ac_fn_c_check_func "$LINENO" "mmap" "ac_cv_func_mmap"
+if test "x$ac_cv_func_mmap" = xyes; then :
+  gl_have_mmap=yes
+else
+  gl_have_mmap=no
+fi
 
 
+  # Try to allow MAP_ANONYMOUS.
+  gl_have_mmap_anonymous=no
+  if test $gl_have_mmap = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for MAP_ANONYMOUS" >&5
+$as_echo_n "checking for MAP_ANONYMOUS... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#include <sys/mman.h>
+#ifdef MAP_ANONYMOUS
+    I cannot identify this map
+#endif
 
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "I cannot identify this map" >/dev/null 2>&1; then :
+  gl_have_mmap_anonymous=yes
+fi
+rm -f conftest*
 
+    if test $gl_have_mmap_anonymous != yes; then
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#include <sys/mman.h>
+#ifdef MAP_ANON
+    I cannot identify this map
+#endif
 
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "I cannot identify this map" >/dev/null 2>&1; then :
 
+$as_echo "#define MAP_ANONYMOUS MAP_ANON" >>confdefs.h
 
-  gl_LIBOBJS="$gl_LIBOBJS asnprintf.$ac_objext"
+         gl_have_mmap_anonymous=yes
+fi
+rm -f conftest*
 
-  if test $ac_cv_func_vasnprintf = yes; then
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_have_mmap_anonymous" >&5
+$as_echo "$gl_have_mmap_anonymous" >&6; }
+    if test $gl_have_mmap_anonymous = yes; then
 
-$as_echo "#define REPLACE_VASNPRINTF 1" >>confdefs.h
+$as_echo "#define HAVE_MAP_ANONYMOUS 1" >>confdefs.h
 
+    fi
   fi
 
 
@@ -14264,204 +16696,224 @@ $as_echo "#define REPLACE_VASNPRINTF 1"
 
 
 
+  if test $HAVE_MEMCHR = 1; then
+    # Detect platform-specific bugs in some versions of glibc:
+    # memchr should not dereference anything with length 0
+    #   http://bugzilla.redhat.com/499689
+    # memchr should not dereference overestimated length after a match
+    #   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737
+    #   http://sourceware.org/bugzilla/show_bug.cgi?id=10162
+    # Assume that memchr works on platforms that lack mprotect.
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether memchr works" >&5
+$as_echo_n "checking whether memchr works... " >&6; }
+if ${gl_cv_func_memchr_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+         gl_cv_func_memchr_works="guessing no"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#include <string.h>
+#if HAVE_SYS_MMAN_H
+# include <fcntl.h>
+# include <unistd.h>
+# include <sys/types.h>
+# include <sys/mman.h>
+# ifndef MAP_FILE
+#  define MAP_FILE 0
+# endif
+#endif
 
+int
+main ()
+{
 
+  int result = 0;
+  char *fence = NULL;
+#if HAVE_SYS_MMAN_H && HAVE_MPROTECT
+# if HAVE_MAP_ANONYMOUS
+  const int flags = MAP_ANONYMOUS | MAP_PRIVATE;
+  const int fd = -1;
+# else /* !HAVE_MAP_ANONYMOUS */
+  const int flags = MAP_FILE | MAP_PRIVATE;
+  int fd = open ("/dev/zero", O_RDONLY, 0666);
+  if (fd >= 0)
+# endif
+    {
+      int pagesize = getpagesize ();
+      char *two_pages =
+        (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE,
+                       flags, fd, 0);
+      if (two_pages != (char *)(-1)
+          && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0)
+        fence = two_pages + pagesize;
+    }
+#endif
+  if (fence)
+    {
+      if (memchr (fence, 0, 0))
+        result |= 1;
+      strcpy (fence - 9, "12345678");
+      if (memchr (fence - 9, 0, 79) != fence - 1)
+        result |= 2;
+      if (memchr (fence - 1, 0, 3) != fence - 1)
+        result |= 4;
+    }
+  return result;
 
-
-  ac_fn_c_check_type "$LINENO" "ptrdiff_t" "ac_cv_type_ptrdiff_t" "$ac_includes_default"
-if test "x$ac_cv_type_ptrdiff_t" = xyes; then :
-
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_memchr_works=yes
 else
-
-$as_echo "#define ptrdiff_t long" >>confdefs.h
-
-
+  gl_cv_func_memchr_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_memchr_works" >&5
+$as_echo "$gl_cv_func_memchr_works" >&6; }
+    if test "$gl_cv_func_memchr_works" != yes; then
+      REPLACE_MEMCHR=1
+    fi
+  fi
 
+ac_fn_c_check_decl "$LINENO" "memrchr" "ac_cv_have_decl_memrchr" "$ac_includes_default"
+if test "x$ac_cv_have_decl_memrchr" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
 
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MEMRCHR $ac_have_decl
+_ACEOF
 
 
 
 
 
-
-
-
-
-
-
-
-
-
-  gl_LIBOBJS="$gl_LIBOBJS vfprintf.$ac_objext"
-
-  REPLACE_VFPRINTF=1
-
-$as_echo "#define REPLACE_VFPRINTF_POSIX 1" >>confdefs.h
-
-  :
-
-  fi
-
-
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether <limits.h> defines MIN and MAX" >&5
+$as_echo_n "checking whether <limits.h> defines MIN and MAX... " >&6; }
+if ${gl_cv_minmax_in_limits_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <limits.h>
+            int x = MIN (42, 17);
+int
+main ()
+{
 
-#ifdef _MSC_VER
-MicrosoftCompiler
-#endif
-
+  ;
+  return 0;
+}
 _ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "MicrosoftCompiler" >/dev/null 2>&1; then :
-  gl_asmext='asm'
-     gl_c_asm_opt='-c -Fa'
-
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_minmax_in_limits_h=yes
 else
-  gl_asmext='s'
-     gl_c_asm_opt='-S'
-
+  gl_cv_minmax_in_limits_h=no
 fi
-rm -f conftest*
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_minmax_in_limits_h" >&5
+$as_echo "$gl_cv_minmax_in_limits_h" >&6; }
+  if test $gl_cv_minmax_in_limits_h = yes; then
 
+$as_echo "#define HAVE_MINMAX_IN_LIMITS_H 1" >>confdefs.h
 
+  fi
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C symbols are prefixed with underscore at the linker level" >&5
-$as_echo_n "checking whether C symbols are prefixed with underscore at the linker level... " >&6; }
-if ${gl_cv_prog_as_underscore+:} false; then :
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether <sys/param.h> defines MIN and MAX" >&5
+$as_echo_n "checking whether <sys/param.h> defines MIN and MAX... " >&6; }
+if ${gl_cv_minmax_in_sys_param_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat > conftest.c <<EOF
-#ifdef __cplusplus
-extern "C" int foo (void);
-#endif
-int foo(void) { return 0; }
-EOF
-     # Look for the assembly language name in the .s file.
-     { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; } >/dev/null 2>&1
-     if grep _foo conftest.$gl_asmext >/dev/null ; then
-       gl_cv_prog_as_underscore=yes
-     else
-       gl_cv_prog_as_underscore=no
-     fi
-     rm -f conftest*
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/param.h>
+            int x = MIN (42, 17);
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_minmax_in_sys_param_h=yes
+else
+  gl_cv_minmax_in_sys_param_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_minmax_in_sys_param_h" >&5
+$as_echo "$gl_cv_minmax_in_sys_param_h" >&6; }
+  if test $gl_cv_minmax_in_sys_param_h = yes; then
+
+$as_echo "#define HAVE_MINMAX_IN_SYS_PARAM_H 1" >>confdefs.h
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_prog_as_underscore" >&5
-$as_echo "$gl_cv_prog_as_underscore" >&6; }
-  if test $gl_cv_prog_as_underscore = yes; then
-    USER_LABEL_PREFIX=_
-  else
-    USER_LABEL_PREFIX=
   fi
 
-cat >>confdefs.h <<_ACEOF
-#define USER_LABEL_PREFIX $USER_LABEL_PREFIX
-_ACEOF
 
-  ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"'
 
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
-$as_echo_n "checking for stdbool.h that conforms to C99... " >&6; }
-if ${ac_cv_header_stdbool_h+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-             #include <stdbool.h>
-             #ifndef bool
-              "error: bool is not defined"
-             #endif
-             #ifndef false
-              "error: false is not defined"
-             #endif
-             #if false
-              "error: false is not 0"
-             #endif
-             #ifndef true
-              "error: true is not defined"
-             #endif
-             #if true != 1
-              "error: true is not 1"
-             #endif
-             #ifndef __bool_true_false_are_defined
-              "error: __bool_true_false_are_defined is not defined"
-             #endif
 
-             struct s { _Bool s: 1; _Bool t; } s;
 
-             char a[true == 1 ? 1 : -1];
-             char b[false == 0 ? 1 : -1];
-             char c[__bool_true_false_are_defined == 1 ? 1 : -1];
-             char d[(bool) 0.5 == true ? 1 : -1];
-             /* See body of main program for 'e'.  */
-             char f[(_Bool) 0.0 == false ? 1 : -1];
-             char g[true];
-             char h[sizeof (_Bool)];
-             char i[sizeof s.t];
-             enum { j = false, k = true, l = false * true, m = true * 256 };
-             /* The following fails for
-                HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
-             _Bool n[m];
-             char o[sizeof n == m * sizeof n[0] ? 1 : -1];
-             char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
-             /* Catch a bug in an HP-UX C compiler.  See
-                http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-                http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
-              */
-             _Bool q = true;
-             _Bool *pq = &q;
 
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for promoted mode_t type" >&5
+$as_echo_n "checking for promoted mode_t type... " >&6; }
+if ${gl_cv_promoted_mode_t+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
 int
 main ()
 {
-
-             bool e = &s;
-             *pq |= q;
-             *pq |= ! q;
-             /* Refer to every declared value, to avoid compiler optimizations.  */
-             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
-                     + !m + !n + !o + !p + !q + !pq);
-
+typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdbool_h=yes
+  gl_cv_promoted_mode_t='int'
 else
-  ac_cv_header_stdbool_h=no
+  gl_cv_promoted_mode_t='mode_t'
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
-$as_echo "$ac_cv_header_stdbool_h" >&6; }
-   ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
-if test "x$ac_cv_type__Bool" = xyes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_promoted_mode_t" >&5
+$as_echo "$gl_cv_promoted_mode_t" >&6; }
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE__BOOL 1
+#define PROMOTED_MODE_T $gl_cv_promoted_mode_t
 _ACEOF
 
 
-fi
 
 
 
-    REPLACE_NULL=0;
-  HAVE_WCHAR_T=1;
 
 
 
@@ -14470,991 +16922,479 @@ fi
 
 
 
-  if test $ac_cv_type_long_long_int = yes; then
-    HAVE_LONG_LONG_INT=1
-  else
-    HAVE_LONG_LONG_INT=0
-  fi
 
 
-  if test $ac_cv_type_unsigned_long_long_int = yes; then
-    HAVE_UNSIGNED_LONG_LONG_INT=1
-  else
-    HAVE_UNSIGNED_LONG_LONG_INT=0
-  fi
 
 
 
-  if test $ac_cv_header_wchar_h = yes; then
-    HAVE_WCHAR_H=1
-  else
-    HAVE_WCHAR_H=0
-  fi
 
+  gl_cv_func_vfprintf_posix=no
+  case "$gl_cv_func_printf_sizes_c99" in
+    *yes)
+      case "$gl_cv_func_printf_long_double" in
+        *yes)
+          case "$gl_cv_func_printf_infinite" in
+            *yes)
+              case "$gl_cv_func_printf_infinite_long_double" in
+                *yes)
+                  case "$gl_cv_func_printf_directive_a" in
+                    *yes)
+                      case "$gl_cv_func_printf_directive_f" in
+                        *yes)
+                          case "$gl_cv_func_printf_directive_n" in
+                            *yes)
+                              case "$gl_cv_func_printf_directive_ls" in
+                                *yes)
+                                  case "$gl_cv_func_printf_positions" in
+                                    *yes)
+                                      case "$gl_cv_func_printf_flag_grouping" in
+                                        *yes)
+                                          case "$gl_cv_func_printf_flag_leftadjust" in
+                                            *yes)
+                                              case "$gl_cv_func_printf_flag_zero" in
+                                                *yes)
+                                                  case "$gl_cv_func_printf_precision" in
+                                                    *yes)
+                                                      case "$gl_cv_func_printf_enomem" in
+                                                        *yes)
+                                                          # vfprintf exists and is
+                                                          # already POSIX compliant.
+                                                          gl_cv_func_vfprintf_posix=yes
+                                                          ;;
+                                                      esac
+                                                      ;;
+                                                  esac
+                                                  ;;
+                                              esac
+                                              ;;
+                                          esac
+                                          ;;
+                                      esac
+                                      ;;
+                                  esac
+                                  ;;
+                              esac
+                              ;;
+                          esac
+                          ;;
+                      esac
+                      ;;
+                  esac
+                  ;;
+              esac
+              ;;
+          esac
+          ;;
+      esac
+      ;;
+  esac
+  if test $gl_cv_func_vfprintf_posix = no; then
 
-      if test $ac_cv_header_inttypes_h = yes; then
-    HAVE_INTTYPES_H=1
-  else
-    HAVE_INTTYPES_H=0
-  fi
 
 
-      if test $ac_cv_header_sys_types_h = yes; then
-    HAVE_SYS_TYPES_H=1
-  else
-    HAVE_SYS_TYPES_H=0
-  fi
+  case "$gl_cv_func_printf_infinite" in
+    *yes)
+      ;;
+    *)
 
+$as_echo "#define NEED_PRINTF_INFINITE_DOUBLE 1" >>confdefs.h
 
+      ;;
+  esac
 
 
 
 
+  case "$gl_cv_func_printf_long_double" in
+    *yes)
+      case "$gl_cv_func_printf_infinite_long_double" in
+        *yes)
+          ;;
+        *)
 
+$as_echo "#define NEED_PRINTF_INFINITE_LONG_DOUBLE 1" >>confdefs.h
 
+          ;;
+      esac
+      ;;
+  esac
 
 
 
-     if test $gl_cv_have_include_next = yes; then
-       gl_cv_next_stdint_h='<'stdint.h'>'
-     else
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <stdint.h>" >&5
-$as_echo_n "checking absolute name of <stdint.h>... " >&6; }
-if ${gl_cv_next_stdint_h+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  case "$gl_cv_func_printf_directive_a" in
+    *yes)
+      ;;
+    *)
 
-             if test $ac_cv_header_stdint_h = yes; then
+$as_echo "#define NEED_PRINTF_DIRECTIVE_A 1" >>confdefs.h
 
+      for ac_func in nl_langinfo
+do :
+  ac_fn_c_check_func "$LINENO" "nl_langinfo" "ac_cv_func_nl_langinfo"
+if test "x$ac_cv_func_nl_langinfo" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_NL_LANGINFO 1
+_ACEOF
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdint.h>
+fi
+done
 
-_ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+      ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
 
-               gl_header_literal_regex=`echo 'stdint.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_stdint_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
-          else
-               gl_cv_next_stdint_h='<'stdint.h'>'
-             fi
 
+  case "$gl_cv_func_printf_directive_f" in
+    *yes)
+      ;;
+    *)
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_stdint_h" >&5
-$as_echo "$gl_cv_next_stdint_h" >&6; }
-     fi
-     NEXT_STDINT_H=$gl_cv_next_stdint_h
+$as_echo "#define NEED_PRINTF_DIRECTIVE_F 1" >>confdefs.h
 
-     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'stdint.h'>'
-     else
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=$gl_cv_next_stdint_h
-     fi
-     NEXT_AS_FIRST_DIRECTIVE_STDINT_H=$gl_next_as_first_directive
+      ;;
+  esac
 
 
 
+  case "$gl_cv_func_printf_directive_ls" in
+    *yes)
+      ;;
+    *)
 
-  if test $ac_cv_header_stdint_h = yes; then
-    HAVE_STDINT_H=1
-  else
-    HAVE_STDINT_H=0
-  fi
+$as_echo "#define NEED_PRINTF_DIRECTIVE_LS 1" >>confdefs.h
 
+      ;;
+  esac
 
-    if test $ac_cv_header_stdint_h = yes; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stdint.h conforms to C99" >&5
-$as_echo_n "checking whether stdint.h conforms to C99... " >&6; }
-if ${gl_cv_header_working_stdint_h+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  gl_cv_header_working_stdint_h=no
-       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
 
-#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
-#include <stdint.h>
-/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>.  */
-#if !(defined WCHAR_MIN && defined WCHAR_MAX)
-#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
-#endif
+  case "$gl_cv_func_printf_flag_grouping" in
+    *yes)
+      ;;
+    *)
 
+$as_echo "#define NEED_PRINTF_FLAG_GROUPING 1" >>confdefs.h
 
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
+      ;;
+  esac
 
 
-#ifdef INT8_MAX
-int8_t a1 = INT8_MAX;
-int8_t a1min = INT8_MIN;
-#endif
-#ifdef INT16_MAX
-int16_t a2 = INT16_MAX;
-int16_t a2min = INT16_MIN;
-#endif
-#ifdef INT32_MAX
-int32_t a3 = INT32_MAX;
-int32_t a3min = INT32_MIN;
-#endif
-#ifdef INT64_MAX
-int64_t a4 = INT64_MAX;
-int64_t a4min = INT64_MIN;
-#endif
-#ifdef UINT8_MAX
-uint8_t b1 = UINT8_MAX;
-#else
-typedef int b1[(unsigned char) -1 != 255 ? 1 : -1];
-#endif
-#ifdef UINT16_MAX
-uint16_t b2 = UINT16_MAX;
-#endif
-#ifdef UINT32_MAX
-uint32_t b3 = UINT32_MAX;
-#endif
-#ifdef UINT64_MAX
-uint64_t b4 = UINT64_MAX;
-#endif
-int_least8_t c1 = INT8_C (0x7f);
-int_least8_t c1max = INT_LEAST8_MAX;
-int_least8_t c1min = INT_LEAST8_MIN;
-int_least16_t c2 = INT16_C (0x7fff);
-int_least16_t c2max = INT_LEAST16_MAX;
-int_least16_t c2min = INT_LEAST16_MIN;
-int_least32_t c3 = INT32_C (0x7fffffff);
-int_least32_t c3max = INT_LEAST32_MAX;
-int_least32_t c3min = INT_LEAST32_MIN;
-int_least64_t c4 = INT64_C (0x7fffffffffffffff);
-int_least64_t c4max = INT_LEAST64_MAX;
-int_least64_t c4min = INT_LEAST64_MIN;
-uint_least8_t d1 = UINT8_C (0xff);
-uint_least8_t d1max = UINT_LEAST8_MAX;
-uint_least16_t d2 = UINT16_C (0xffff);
-uint_least16_t d2max = UINT_LEAST16_MAX;
-uint_least32_t d3 = UINT32_C (0xffffffff);
-uint_least32_t d3max = UINT_LEAST32_MAX;
-uint_least64_t d4 = UINT64_C (0xffffffffffffffff);
-uint_least64_t d4max = UINT_LEAST64_MAX;
-int_fast8_t e1 = INT_FAST8_MAX;
-int_fast8_t e1min = INT_FAST8_MIN;
-int_fast16_t e2 = INT_FAST16_MAX;
-int_fast16_t e2min = INT_FAST16_MIN;
-int_fast32_t e3 = INT_FAST32_MAX;
-int_fast32_t e3min = INT_FAST32_MIN;
-int_fast64_t e4 = INT_FAST64_MAX;
-int_fast64_t e4min = INT_FAST64_MIN;
-uint_fast8_t f1 = UINT_FAST8_MAX;
-uint_fast16_t f2 = UINT_FAST16_MAX;
-uint_fast32_t f3 = UINT_FAST32_MAX;
-uint_fast64_t f4 = UINT_FAST64_MAX;
-#ifdef INTPTR_MAX
-intptr_t g = INTPTR_MAX;
-intptr_t gmin = INTPTR_MIN;
-#endif
-#ifdef UINTPTR_MAX
-uintptr_t h = UINTPTR_MAX;
-#endif
-intmax_t i = INTMAX_MAX;
-uintmax_t j = UINTMAX_MAX;
 
-#include <limits.h> /* for CHAR_BIT */
-#define TYPE_MINIMUM(t) \
-  ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t)))
-#define TYPE_MAXIMUM(t) \
-  ((t) ((t) 0 < (t) -1 \
-        ? (t) -1 \
-        : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
-struct s {
-  int check_PTRDIFF:
-      PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
-      && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
-      ? 1 : -1;
-  /* Detect bug in FreeBSD 6.0 / ia64.  */
-  int check_SIG_ATOMIC:
-      SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
-      && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
-      ? 1 : -1;
-  int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
-  int check_WCHAR:
-      WCHAR_MIN == TYPE_MINIMUM (wchar_t)
-      && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
-      ? 1 : -1;
-  /* Detect bug in mingw.  */
-  int check_WINT:
-      WINT_MIN == TYPE_MINIMUM (wint_t)
-      && WINT_MAX == TYPE_MAXIMUM (wint_t)
-      ? 1 : -1;
+  case "$gl_cv_func_printf_flag_leftadjust" in
+    *yes)
+      ;;
+    *)
 
-  /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others.  */
-  int check_UINT8_C:
-        (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
-  int check_UINT16_C:
-        (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
+$as_echo "#define NEED_PRINTF_FLAG_LEFTADJUST 1" >>confdefs.h
 
-  /* Detect bugs in OpenBSD 3.9 stdint.h.  */
-#ifdef UINT8_MAX
-  int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1;
-#endif
-#ifdef UINT16_MAX
-  int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1;
-#endif
-#ifdef UINT32_MAX
-  int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1;
-#endif
-#ifdef UINT64_MAX
-  int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1;
-#endif
-  int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1;
-  int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1;
-  int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1;
-  int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1;
-  int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1;
-  int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1;
-  int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1;
-  int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1;
-  int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1;
-  int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
-  int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
-};
+      ;;
+  esac
 
-int
-main ()
-{
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-                                                    if test "$cross_compiling" = yes; then :
-                 gl_cv_header_working_stdint_h=yes
 
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
+  case "$gl_cv_func_printf_flag_zero" in
+    *yes)
+      ;;
+    *)
 
+$as_echo "#define NEED_PRINTF_FLAG_ZERO 1" >>confdefs.h
 
-#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
-#include <stdint.h>
+      ;;
+  esac
 
 
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
+  case "$gl_cv_func_printf_precision" in
+    *yes)
+      ;;
+    *)
 
-#include <stdio.h>
-#include <string.h>
-#define MVAL(macro) MVAL1(macro)
-#define MVAL1(expression) #expression
-static const char *macro_values[] =
-  {
-#ifdef INT8_MAX
-    MVAL (INT8_MAX),
-#endif
-#ifdef INT16_MAX
-    MVAL (INT16_MAX),
-#endif
-#ifdef INT32_MAX
-    MVAL (INT32_MAX),
-#endif
-#ifdef INT64_MAX
-    MVAL (INT64_MAX),
-#endif
-#ifdef UINT8_MAX
-    MVAL (UINT8_MAX),
-#endif
-#ifdef UINT16_MAX
-    MVAL (UINT16_MAX),
-#endif
-#ifdef UINT32_MAX
-    MVAL (UINT32_MAX),
-#endif
-#ifdef UINT64_MAX
-    MVAL (UINT64_MAX),
-#endif
-    NULL
-  };
+$as_echo "#define NEED_PRINTF_UNBOUNDED_PRECISION 1" >>confdefs.h
 
-int
-main ()
-{
 
-  const char **mv;
-  for (mv = macro_values; *mv != NULL; mv++)
-    {
-      const char *value = *mv;
-      /* Test whether it looks like a cast expression.  */
-      if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
-          || strncmp (value, "((unsigned short)"/*)*/, 17) == 0
-          || strncmp (value, "((unsigned char)"/*)*/, 16) == 0
-          || strncmp (value, "((int)"/*)*/, 6) == 0
-          || strncmp (value, "((signed short)"/*)*/, 15) == 0
-          || strncmp (value, "((signed char)"/*)*/, 14) == 0)
-        return mv - macro_values + 1;
-    }
-  return 0;
+$as_echo "#define NEED_PRINTF_DOUBLE 1" >>confdefs.h
+
+
+$as_echo "#define NEED_PRINTF_LONG_DOUBLE 1" >>confdefs.h
+
+      ;;
+  esac
+
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_header_working_stdint_h=yes
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
 
+  case "$gl_cv_func_printf_enomem" in
+    *yes)
+      ;;
+    *)
 
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+$as_echo "#define NEED_PRINTF_ENOMEM 1" >>confdefs.h
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_working_stdint_h" >&5
-$as_echo "$gl_cv_header_working_stdint_h" >&6; }
-  fi
-  if test "$gl_cv_header_working_stdint_h" = yes; then
-    STDINT_H=
-  else
-            for ac_header in sys/inttypes.h sys/bitypes.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
 
-fi
+$as_echo "#define NEED_PRINTF_DOUBLE 1" >>confdefs.h
 
-done
 
-    if test $ac_cv_header_sys_inttypes_h = yes; then
-      HAVE_SYS_INTTYPES_H=1
-    else
-      HAVE_SYS_INTTYPES_H=0
-    fi
+$as_echo "#define NEED_PRINTF_LONG_DOUBLE 1" >>confdefs.h
 
-    if test $ac_cv_header_sys_bitypes_h = yes; then
-      HAVE_SYS_BITYPES_H=1
-    else
-      HAVE_SYS_BITYPES_H=0
-    fi
+      ;;
+  esac
 
 
 
 
-  if test $APPLE_UNIVERSAL_BUILD = 0; then
 
 
-  for gltype in ptrdiff_t size_t ; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bit size of $gltype" >&5
-$as_echo_n "checking for bit size of $gltype... " >&6; }
-if eval \${gl_cv_bitsizeof_${gltype}+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "sizeof ($gltype) * CHAR_BIT" "result"        "
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
-#include <limits.h>"; then :
 
-else
-  result=unknown
-fi
 
-       eval gl_cv_bitsizeof_${gltype}=\$result
 
-fi
-eval ac_res=\$gl_cv_bitsizeof_${gltype}
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    eval result=\$gl_cv_bitsizeof_${gltype}
-    if test $result = unknown; then
-                                                result=0
-    fi
-    GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
-    cat >>confdefs.h <<_ACEOF
-#define BITSIZEOF_${GLTYPE} $result
-_ACEOF
 
-    eval BITSIZEOF_${GLTYPE}=\$result
-  done
+  gl_LIBOBJS="$gl_LIBOBJS vasnprintf.$ac_objext"
 
 
-  fi
 
 
-  for gltype in sig_atomic_t wchar_t wint_t ; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bit size of $gltype" >&5
-$as_echo_n "checking for bit size of $gltype... " >&6; }
-if eval \${gl_cv_bitsizeof_${gltype}+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if ac_fn_c_compute_int "$LINENO" "sizeof ($gltype) * CHAR_BIT" "result"        "
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
-#include <limits.h>"; then :
 
-else
-  result=unknown
-fi
 
-       eval gl_cv_bitsizeof_${gltype}=\$result
 
-fi
-eval ac_res=\$gl_cv_bitsizeof_${gltype}
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    eval result=\$gl_cv_bitsizeof_${gltype}
-    if test $result = unknown; then
-                                                result=0
-    fi
-    GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
-    cat >>confdefs.h <<_ACEOF
-#define BITSIZEOF_${GLTYPE} $result
-_ACEOF
 
-    eval BITSIZEOF_${GLTYPE}=\$result
-  done
+  gl_LIBOBJS="$gl_LIBOBJS printf-args.$ac_objext"
 
 
 
 
-  for gltype in sig_atomic_t wchar_t wint_t ; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gltype is signed" >&5
-$as_echo_n "checking whether $gltype is signed... " >&6; }
-if eval \${gl_cv_type_${gltype}_signed+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
-            int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];
-int
-main ()
-{
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  result=yes
-else
-  result=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-       eval gl_cv_type_${gltype}_signed=\$result
 
-fi
-eval ac_res=\$gl_cv_type_${gltype}_signed
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    eval result=\$gl_cv_type_${gltype}_signed
-    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
-    if test "$result" = yes; then
-      cat >>confdefs.h <<_ACEOF
-#define HAVE_SIGNED_${GLTYPE} 1
-_ACEOF
 
-      eval HAVE_SIGNED_${GLTYPE}=1
-    else
-      eval HAVE_SIGNED_${GLTYPE}=0
-    fi
-  done
+  gl_LIBOBJS="$gl_LIBOBJS printf-parse.$ac_objext"
 
 
-  gl_cv_type_ptrdiff_t_signed=yes
-  gl_cv_type_size_t_signed=no
-  if test $APPLE_UNIVERSAL_BUILD = 0; then
 
 
-  for gltype in ptrdiff_t size_t ; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $gltype integer literal suffix" >&5
-$as_echo_n "checking for $gltype integer literal suffix... " >&6; }
-if eval \${gl_cv_type_${gltype}_suffix+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  eval gl_cv_type_${gltype}_suffix=no
-       eval result=\$gl_cv_type_${gltype}_signed
-       if test "$result" = yes; then
-         glsufu=
-       else
-         glsufu=u
-       fi
-       for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
-         case $glsuf in
-           '')  gltype1='int';;
-           l)   gltype1='long int';;
-           ll)  gltype1='long long int';;
-           i64) gltype1='__int64';;
-           u)   gltype1='unsigned int';;
-           ul)  gltype1='unsigned long int';;
-           ull) gltype1='unsigned long long int';;
-           ui64)gltype1='unsigned __int64';;
-         esac
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
-              extern $gltype foo;
-              extern $gltype1 foo;
-int
-main ()
-{
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval gl_cv_type_${gltype}_suffix=\$glsuf
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         eval result=\$gl_cv_type_${gltype}_suffix
-         test "$result" != no && break
-       done
-fi
-eval ac_res=\$gl_cv_type_${gltype}_suffix
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
-    eval result=\$gl_cv_type_${gltype}_suffix
-    test "$result" = no && result=
-    eval ${GLTYPE}_SUFFIX=\$result
-    cat >>confdefs.h <<_ACEOF
-#define ${GLTYPE}_SUFFIX $result
-_ACEOF
 
-  done
 
+  gl_LIBOBJS="$gl_LIBOBJS asnprintf.$ac_objext"
+
+  if test $ac_cv_func_vasnprintf = yes; then
+
+$as_echo "#define REPLACE_VASNPRINTF 1" >>confdefs.h
 
   fi
 
 
-  for gltype in sig_atomic_t wchar_t wint_t ; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $gltype integer literal suffix" >&5
-$as_echo_n "checking for $gltype integer literal suffix... " >&6; }
-if eval \${gl_cv_type_${gltype}_suffix+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  eval gl_cv_type_${gltype}_suffix=no
-       eval result=\$gl_cv_type_${gltype}_signed
-       if test "$result" = yes; then
-         glsufu=
-       else
-         glsufu=u
-       fi
-       for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
-         case $glsuf in
-           '')  gltype1='int';;
-           l)   gltype1='long int';;
-           ll)  gltype1='long long int';;
-           i64) gltype1='__int64';;
-           u)   gltype1='unsigned int';;
-           ul)  gltype1='unsigned long int';;
-           ull) gltype1='unsigned long long int';;
-           ui64)gltype1='unsigned __int64';;
-         esac
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-     included before <wchar.h>.  */
-  #include <stddef.h>
-  #include <signal.h>
-  #if HAVE_WCHAR_H
-  # include <stdio.h>
-  # include <time.h>
-  # include <wchar.h>
-  #endif
 
-              extern $gltype foo;
-              extern $gltype1 foo;
-int
-main ()
-{
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval gl_cv_type_${gltype}_suffix=\$glsuf
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-         eval result=\$gl_cv_type_${gltype}_suffix
-         test "$result" != no && break
-       done
-fi
-eval ac_res=\$gl_cv_type_${gltype}_suffix
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
-    eval result=\$gl_cv_type_${gltype}_suffix
-    test "$result" = no && result=
-    eval ${GLTYPE}_SUFFIX=\$result
-    cat >>confdefs.h <<_ACEOF
-#define ${GLTYPE}_SUFFIX $result
-_ACEOF
 
-  done
 
 
 
-          if test $BITSIZEOF_WINT_T -lt 32; then
-    BITSIZEOF_WINT_T=32
-  fi
 
-    STDINT_H=stdint.h
-  fi
 
-   if test -n "$STDINT_H"; then
-  GL_GENERATE_STDINT_H_TRUE=
-  GL_GENERATE_STDINT_H_FALSE='#'
-else
-  GL_GENERATE_STDINT_H_TRUE='#'
-  GL_GENERATE_STDINT_H_FALSE=
-fi
+  ac_fn_c_check_type "$LINENO" "ptrdiff_t" "ac_cv_type_ptrdiff_t" "$ac_includes_default"
+if test "x$ac_cv_type_ptrdiff_t" = xyes; then :
 
+else
 
+$as_echo "#define ptrdiff_t long" >>confdefs.h
 
-  GNULIB_FFS=0;
-    HAVE_FFS=1;
-  HAVE_STRCASECMP=1;
-  HAVE_DECL_STRNCASECMP=1;
 
+fi
 
 
 
 
 
 
-  for ac_func in strcasestr
-do :
-  ac_fn_c_check_func "$LINENO" "strcasestr" "ac_cv_func_strcasestr"
-if test "x$ac_cv_func_strcasestr" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_STRCASESTR 1
-_ACEOF
 
-fi
-done
 
-  if test $ac_cv_func_strcasestr = no; then
-    HAVE_STRCASESTR=0
-  else
-    if test "$gl_cv_func_memchr_works" != yes; then
-      REPLACE_STRCASESTR=1
-    else
-            { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strcasestr works" >&5
-$as_echo_n "checking whether strcasestr works... " >&6; }
-if ${gl_cv_func_strcasestr_works_always+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
-                                                         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-#ifdef __GNU_LIBRARY__
- #include <features.h>
- #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \
-     || defined __UCLIBC__
-  Lucky user
- #endif
-#elif defined __CYGWIN__
- #include <cygwin/version.h>
- #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7)
-  Lucky user
- #endif
-#else
-  Lucky user
-#endif
 
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "Lucky user" >/dev/null 2>&1; then :
-  gl_cv_func_strcasestr_works_always=yes
-else
-  gl_cv_func_strcasestr_works_always="guessing no"
-fi
-rm -f conftest*
 
 
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-#include <string.h> /* for strcasestr */
-#define P "_EF_BF_BD"
-#define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P
-#define NEEDLE P P P P P
 
-int
-main ()
-{
-return !!strcasestr (HAYSTACK, NEEDLE);
 
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_strcasestr_works_always=yes
-else
-  gl_cv_func_strcasestr_works_always=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
 
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strcasestr_works_always" >&5
-$as_echo "$gl_cv_func_strcasestr_works_always" >&6; }
-      if test "$gl_cv_func_strcasestr_works_always" != yes; then
-        REPLACE_STRCASESTR=1
-      fi
-    fi
-  fi
+  gl_LIBOBJS="$gl_LIBOBJS vfprintf.$ac_objext"
 
+  REPLACE_VFPRINTF=1
 
+$as_echo "#define REPLACE_VFPRINTF_POSIX 1" >>confdefs.h
 
-ac_fn_c_check_decl "$LINENO" "strdup" "ac_cv_have_decl_strdup" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strdup" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
+  :
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRDUP $ac_have_decl
-_ACEOF
+  fi
 
 
-  REPLACE_STRERROR_0=0
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strerror(0) succeeds" >&5
-$as_echo_n "checking whether strerror(0) succeeds... " >&6; }
-if ${gl_cv_func_strerror_0_works+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
-         gl_cv_func_strerror_0_works="guessing no"
-else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <string.h>
-           #include <errno.h>
 
-int
-main ()
-{
-int result = 0;
-           char *str;
-           errno = 0;
-           str = strerror (0);
-           if (!*str) result |= 1;
-           if (errno) result |= 2;
-           if (strstr (str, "nknown") || strstr (str, "ndefined"))
-             result |= 4;
-           return result;
-  ;
-  return 0;
-}
+#ifdef _MSC_VER
+MicrosoftCompiler
+#endif
+
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_strerror_0_works=yes
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "MicrosoftCompiler" >/dev/null 2>&1; then :
+  gl_asmext='asm'
+     gl_c_asm_opt='-c -Fa'
+
 else
-  gl_cv_func_strerror_0_works=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  gl_asmext='s'
+     gl_c_asm_opt='-S'
+
 fi
+rm -f conftest*
 
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strerror_0_works" >&5
-$as_echo "$gl_cv_func_strerror_0_works" >&6; }
-  if test "$gl_cv_func_strerror_0_works" != yes; then
-    REPLACE_STRERROR_0=1
 
-$as_echo "#define REPLACE_STRERROR_0 1" >>confdefs.h
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C symbols are prefixed with underscore at the linker level" >&5
+$as_echo_n "checking whether C symbols are prefixed with underscore at the linker level... " >&6; }
+if ${gl_cv_prog_as_underscore+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+#ifdef __cplusplus
+extern "C" int foo (void);
+#endif
+int foo(void) { return 0; }
+EOF
+     # Look for the assembly language name in the .s file.
+     { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; } >/dev/null 2>&1
+     if LC_ALL=C grep -E '(^|[^a-zA-Z0-9_])_foo([^a-zA-Z0-9_]|$)' conftest.$gl_asmext >/dev/null; then
+       gl_cv_prog_as_underscore=yes
+     else
+       gl_cv_prog_as_underscore=no
+     fi
+     rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_prog_as_underscore" >&5
+$as_echo "$gl_cv_prog_as_underscore" >&6; }
+  if test $gl_cv_prog_as_underscore = yes; then
+    USER_LABEL_PREFIX=_
+  else
+    USER_LABEL_PREFIX=
   fi
 
+cat >>confdefs.h <<_ACEOF
+#define USER_LABEL_PREFIX $USER_LABEL_PREFIX
+_ACEOF
 
+  ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"'
 
 
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
+$as_echo_n "checking for inline... " >&6; }
+if ${ac_cv_c_inline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo () {return 0; }
+$ac_kw foo_t foo () {return 0; }
+#endif
 
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_inline=$ac_kw
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  test "$ac_cv_c_inline" != no && break
+done
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
+$as_echo "$ac_cv_c_inline" >&6; }
 
+case $ac_cv_c_inline in
+  inline | yes) ;;
+  *)
+    case $ac_cv_c_inline in
+      no) ac_val=;;
+      *) ac_val=$ac_cv_c_inline;;
+    esac
+    cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
+    ;;
+esac
 
-  if test $ac_cv_func_strerror_r = yes; then
-    if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then
-                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strerror_r with POSIX signature" >&5
-$as_echo_n "checking for strerror_r with POSIX signature... " >&6; }
-if ${gl_cv_func_strerror_r_posix_signature+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-                int strerror_r (int, char *, size_t);
 
-int
-main ()
-{
 
-  ;
-  return 0;
-}
+      for ac_header in stdlib.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_stdlib_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STDLIB_H 1
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_func_strerror_r_posix_signature=yes
-else
-  gl_cv_func_strerror_r_posix_signature=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strerror_r_posix_signature" >&5
-$as_echo "$gl_cv_func_strerror_r_posix_signature" >&6; }
-      if test $gl_cv_func_strerror_r_posix_signature = yes; then
-                                                        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strerror_r works" >&5
-$as_echo_n "checking whether strerror_r works... " >&6; }
-if ${gl_cv_func_strerror_r_works+:} false; then :
+
+done
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible malloc" >&5
+$as_echo_n "checking for GNU libc compatible malloc... " >&6; }
+if ${ac_cv_func_malloc_0_nonnull+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-
-              case "$host_os" in
-                       # Guess no on AIX.
-                aix*)  gl_cv_func_strerror_r_works="guessing no";;
-                       # Guess no on HP-UX.
-                hpux*) gl_cv_func_strerror_r_works="guessing no";;
-                       # Guess no on BSD variants.
-                *bsd*)  gl_cv_func_strerror_r_works="guessing no";;
-                       # Guess yes otherwise.
-                *)     gl_cv_func_strerror_r_works="guessing yes";;
-              esac
+  case "$host_os" in
+          # Guess yes on platforms where we know the result.
+          *-gnu* | freebsd* | netbsd* | openbsd* \
+          | hpux* | solaris* | cygwin* | mingw*)
+            ac_cv_func_malloc_0_nonnull=yes ;;
+          # If we don't know, assume the worst.
+          *) ac_cv_func_malloc_0_nonnull=no ;;
+        esac
 
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <errno.h>
-                  #include <string.h>
+#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+            # include <stdlib.h>
+            #else
+            char *malloc ();
+            #endif
 
 int
 main ()
 {
-int result = 0;
-                  char buf[79];
-                  if (strerror_r (EACCES, buf, 0) < 0)
-                    result |= 1;
-                  errno = 0;
-                  if (strerror_r (EACCES, buf, sizeof buf) != 0)
-                    result |= 2;
-                  strcpy (buf, "Unknown");
-                  if (strerror_r (0, buf, sizeof buf) != 0)
-                    result |= 4;
-                  if (errno)
-                    result |= 8;
-                  if (strstr (buf, "nknown") || strstr (buf, "ndefined"))
-                    result |= 0x10;
-                  errno = 0;
-                  *buf = 0;
-                  if (strerror_r (-3, buf, sizeof buf) < 0)
-                    result |= 0x20;
-                  if (errno)
-                    result |= 0x40;
-                  if (!*buf)
-                    result |= 0x80;
-                  return result;
-
+char *p = malloc (0);
+            int result = !p;
+            free (p);
+            return result;
   ;
   return 0;
 }
+
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_strerror_r_works=yes
+  ac_cv_func_malloc_0_nonnull=yes
 else
-  gl_cv_func_strerror_r_works=no
+  ac_cv_func_malloc_0_nonnull=no
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -15462,70 +17402,160 @@ fi
 
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strerror_r_works" >&5
-$as_echo "$gl_cv_func_strerror_r_works" >&6; }
-      else
-
-                        if test $ac_cv_func___xpg_strerror_r = yes; then
-          { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether __xpg_strerror_r works" >&5
-$as_echo_n "checking whether __xpg_strerror_r works... " >&6; }
-if ${gl_cv_func_strerror_r_works+:} false; then :
-  $as_echo_n "(cached) " >&6
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_malloc_0_nonnull" >&5
+$as_echo "$ac_cv_func_malloc_0_nonnull" >&6; }
+  if test $ac_cv_func_malloc_0_nonnull = yes; then :
+  gl_cv_func_malloc_0_nonnull=1
 else
-  if test "$cross_compiling" = yes; then :
-                                  gl_cv_func_strerror_r_works="guessing no"
+  gl_cv_func_malloc_0_nonnull=0
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define MALLOC_0_IS_NONNULL $gl_cv_func_malloc_0_nonnull
+_ACEOF
+
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
+$as_echo_n "checking for stdbool.h that conforms to C99... " >&6; }
+if ${ac_cv_header_stdbool_h+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <errno.h>
-                    #include <string.h>
-                    extern
-                    #ifdef __cplusplus
-                    "C"
-                    #endif
-                    int __xpg_strerror_r(int, char *, size_t);
+
+             #include <stdbool.h>
+
+             #ifdef __cplusplus
+              typedef bool Bool;
+             #else
+              typedef _Bool Bool;
+              #ifndef bool
+               "error: bool is not defined"
+              #endif
+              #ifndef false
+               "error: false is not defined"
+              #endif
+              #if false
+               "error: false is not 0"
+              #endif
+              #ifndef true
+               "error: true is not defined"
+              #endif
+              #if true != 1
+               "error: true is not 1"
+              #endif
+             #endif
+
+             #ifndef __bool_true_false_are_defined
+              "error: __bool_true_false_are_defined is not defined"
+             #endif
+
+             struct s { Bool s: 1; Bool t; bool u: 1; bool v; } s;
+
+             char a[true == 1 ? 1 : -1];
+             char b[false == 0 ? 1 : -1];
+             char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+             char d[(bool) 0.5 == true ? 1 : -1];
+             /* See body of main program for 'e'.  */
+             char f[(Bool) 0.0 == false ? 1 : -1];
+             char g[true];
+             char h[sizeof (Bool)];
+             char i[sizeof s.t];
+             enum { j = false, k = true, l = false * true, m = true * 256 };
+             /* The following fails for
+                HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
+             Bool n[m];
+             char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+             char p[-1 - (Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+             /* Catch a bug in an HP-UX C compiler.  See
+                http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+                http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+              */
+             Bool q = true;
+             Bool *pq = &q;
+             bool *qq = &q;
 
 int
 main ()
 {
-int result = 0;
-                    char buf[256] = "^";
-                    char copy[256];
-                    char *str = strerror (-1);
-                    strcpy (copy, str);
-                    if (__xpg_strerror_r (-2, buf, 1) == 0)
-                      result |= 1;
-                    if (*buf)
-                      result |= 2;
-                    __xpg_strerror_r (-2, buf, 256);
-                    if (strcmp (str, copy))
-                      result |= 4;
-                    return result;
+
+             bool e = &s;
+             *pq |= q; *pq |= ! q;
+             *qq |= q; *qq |= ! q;
+             /* Refer to every declared value, to avoid compiler optimizations.  */
+             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+                     + !m + !n + !o + !p + !q + !pq + !qq);
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_strerror_r_works=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdbool_h=yes
 else
-  gl_cv_func_strerror_r_works=no
+  ac_cv_header_stdbool_h=no
 fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
+$as_echo "$ac_cv_header_stdbool_h" >&6; }
+   ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
+if test "x$ac_cv_type__Bool" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE__BOOL 1
+_ACEOF
 
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strerror_r_works" >&5
-$as_echo "$gl_cv_func_strerror_r_works" >&6; }
-        fi
-      fi
-    fi
+
+
+
+
+
+
+
+
+
+
+
+
+  if test $ac_cv_type_long_long_int = yes; then
+    HAVE_LONG_LONG_INT=1
+  else
+    HAVE_LONG_LONG_INT=0
+  fi
+
+
+  if test $ac_cv_type_unsigned_long_long_int = yes; then
+    HAVE_UNSIGNED_LONG_LONG_INT=1
+  else
+    HAVE_UNSIGNED_LONG_LONG_INT=0
+  fi
+
+
+
+  if test $ac_cv_header_wchar_h = yes; then
+    HAVE_WCHAR_H=1
+  else
+    HAVE_WCHAR_H=0
+  fi
+
+
+      if test $ac_cv_header_inttypes_h = yes; then
+    HAVE_INTTYPES_H=1
+  else
+    HAVE_INTTYPES_H=0
   fi
 
 
+      if test $ac_cv_header_sys_types_h = yes; then
+    HAVE_SYS_TYPES_H=1
+  else
+    HAVE_SYS_TYPES_H=0
+  fi
+
 
 
 
@@ -15537,628 +17567,965 @@ $as_echo "$gl_cv_func_strerror_r_works"
 
 
      if test $gl_cv_have_include_next = yes; then
-       gl_cv_next_string_h='<'string.h'>'
+       gl_cv_next_stdint_h='<'stdint.h'>'
      else
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <string.h>" >&5
-$as_echo_n "checking absolute name of <string.h>... " >&6; }
-if ${gl_cv_next_string_h+:} false; then :
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <stdint.h>" >&5
+$as_echo_n "checking absolute name of <stdint.h>... " >&6; }
+if ${gl_cv_next_stdint_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
+             if test $ac_cv_header_stdint_h = yes; then
+
+
 
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdint.h>
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'stdint.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
-               gl_header_literal_regex=`echo 'string.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_string_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+        gl_cv_absolute_stdint_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_stdint_h
+           gl_cv_next_stdint_h='"'$gl_header'"'
+          else
+               gl_cv_next_stdint_h='<'stdint.h'>'
+             fi
 
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_string_h" >&5
-$as_echo "$gl_cv_next_string_h" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_stdint_h" >&5
+$as_echo "$gl_cv_next_stdint_h" >&6; }
      fi
-     NEXT_STRING_H=$gl_cv_next_string_h
+     NEXT_STDINT_H=$gl_cv_next_stdint_h
 
      if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
        # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'string.h'>'
+       gl_next_as_first_directive='<'stdint.h'>'
      else
        # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=$gl_cv_next_string_h
+       gl_next_as_first_directive=$gl_cv_next_stdint_h
      fi
-     NEXT_AS_FIRST_DIRECTIVE_STRING_H=$gl_next_as_first_directive
+     NEXT_AS_FIRST_DIRECTIVE_STDINT_H=$gl_next_as_first_directive
 
 
 
 
+  if test $ac_cv_header_stdint_h = yes; then
+    HAVE_STDINT_H=1
+  else
+    HAVE_STDINT_H=0
+  fi
 
 
-    for gl_func in ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul      strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r      strerror_r strsignal strverscmp; do
-    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
-$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
-if eval \${$as_gl_Symbol+:} false; then :
+    if test $ac_cv_header_stdint_h = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stdint.h conforms to C99" >&5
+$as_echo_n "checking whether stdint.h conforms to C99... " >&6; }
+if ${gl_cv_header_working_stdint_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_cv_header_working_stdint_h=no
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <string.h>
+
+
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#define __STDC_CONSTANT_MACROS 1
+#define __STDC_LIMIT_MACROS 1
+#include <stdint.h>
+/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>.  */
+#if !(defined WCHAR_MIN && defined WCHAR_MAX)
+#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
+#endif
+
+
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
+
+
+#ifdef INT8_MAX
+int8_t a1 = INT8_MAX;
+int8_t a1min = INT8_MIN;
+#endif
+#ifdef INT16_MAX
+int16_t a2 = INT16_MAX;
+int16_t a2min = INT16_MIN;
+#endif
+#ifdef INT32_MAX
+int32_t a3 = INT32_MAX;
+int32_t a3min = INT32_MIN;
+#endif
+#ifdef INT64_MAX
+int64_t a4 = INT64_MAX;
+int64_t a4min = INT64_MIN;
+#endif
+#ifdef UINT8_MAX
+uint8_t b1 = UINT8_MAX;
+#else
+typedef int b1[(unsigned char) -1 != 255 ? 1 : -1];
+#endif
+#ifdef UINT16_MAX
+uint16_t b2 = UINT16_MAX;
+#endif
+#ifdef UINT32_MAX
+uint32_t b3 = UINT32_MAX;
+#endif
+#ifdef UINT64_MAX
+uint64_t b4 = UINT64_MAX;
+#endif
+int_least8_t c1 = INT8_C (0x7f);
+int_least8_t c1max = INT_LEAST8_MAX;
+int_least8_t c1min = INT_LEAST8_MIN;
+int_least16_t c2 = INT16_C (0x7fff);
+int_least16_t c2max = INT_LEAST16_MAX;
+int_least16_t c2min = INT_LEAST16_MIN;
+int_least32_t c3 = INT32_C (0x7fffffff);
+int_least32_t c3max = INT_LEAST32_MAX;
+int_least32_t c3min = INT_LEAST32_MIN;
+int_least64_t c4 = INT64_C (0x7fffffffffffffff);
+int_least64_t c4max = INT_LEAST64_MAX;
+int_least64_t c4min = INT_LEAST64_MIN;
+uint_least8_t d1 = UINT8_C (0xff);
+uint_least8_t d1max = UINT_LEAST8_MAX;
+uint_least16_t d2 = UINT16_C (0xffff);
+uint_least16_t d2max = UINT_LEAST16_MAX;
+uint_least32_t d3 = UINT32_C (0xffffffff);
+uint_least32_t d3max = UINT_LEAST32_MAX;
+uint_least64_t d4 = UINT64_C (0xffffffffffffffff);
+uint_least64_t d4max = UINT_LEAST64_MAX;
+int_fast8_t e1 = INT_FAST8_MAX;
+int_fast8_t e1min = INT_FAST8_MIN;
+int_fast16_t e2 = INT_FAST16_MAX;
+int_fast16_t e2min = INT_FAST16_MIN;
+int_fast32_t e3 = INT_FAST32_MAX;
+int_fast32_t e3min = INT_FAST32_MIN;
+int_fast64_t e4 = INT_FAST64_MAX;
+int_fast64_t e4min = INT_FAST64_MIN;
+uint_fast8_t f1 = UINT_FAST8_MAX;
+uint_fast16_t f2 = UINT_FAST16_MAX;
+uint_fast32_t f3 = UINT_FAST32_MAX;
+uint_fast64_t f4 = UINT_FAST64_MAX;
+#ifdef INTPTR_MAX
+intptr_t g = INTPTR_MAX;
+intptr_t gmin = INTPTR_MIN;
+#endif
+#ifdef UINTPTR_MAX
+uintptr_t h = UINTPTR_MAX;
+#endif
+intmax_t i = INTMAX_MAX;
+uintmax_t j = UINTMAX_MAX;
+
+/* Check that SIZE_MAX has the correct type, if possible.  */
+#if 201112 <= __STDC_VERSION__
+int k = _Generic (SIZE_MAX, size_t: 0);
+#elif (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
+       || (0x5110 <= __SUNPRO_C && !__STDC__))
+extern size_t k;
+extern __typeof__ (SIZE_MAX) k;
+#endif
+
+#include <limits.h> /* for CHAR_BIT */
+#define TYPE_MINIMUM(t) \
+  ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t)))
+#define TYPE_MAXIMUM(t) \
+  ((t) ((t) 0 < (t) -1 \
+        ? (t) -1 \
+        : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
+struct s {
+  int check_PTRDIFF:
+      PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
+      && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
+      ? 1 : -1;
+  /* Detect bug in FreeBSD 6.0 / ia64.  */
+  int check_SIG_ATOMIC:
+      SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
+      && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
+      ? 1 : -1;
+  int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
+  int check_WCHAR:
+      WCHAR_MIN == TYPE_MINIMUM (wchar_t)
+      && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
+      ? 1 : -1;
+  /* Detect bug in mingw.  */
+  int check_WINT:
+      WINT_MIN == TYPE_MINIMUM (wint_t)
+      && WINT_MAX == TYPE_MAXIMUM (wint_t)
+      ? 1 : -1;
+
+  /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others.  */
+  int check_UINT8_C:
+        (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
+  int check_UINT16_C:
+        (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
+
+  /* Detect bugs in OpenBSD 3.9 stdint.h.  */
+#ifdef UINT8_MAX
+  int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1;
+#endif
+#ifdef UINT16_MAX
+  int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1;
+#endif
+#ifdef UINT32_MAX
+  int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1;
+#endif
+#ifdef UINT64_MAX
+  int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1;
+#endif
+  int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1;
+  int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1;
+  int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1;
+  int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1;
+  int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1;
+  int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1;
+  int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1;
+  int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1;
+  int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1;
+  int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
+  int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
+};
 
 int
 main ()
 {
-#undef $gl_func
-  (void) $gl_func;
+
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$as_gl_Symbol=yes"
-else
-  eval "$as_gl_Symbol=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-eval ac_res=\$$as_gl_Symbol
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
-_ACEOF
-
-                     eval ac_cv_have_decl_$gl_func=yes
-fi
-      done
-
-
+                                                    if test "$cross_compiling" = yes; then :
+                 gl_cv_header_working_stdint_h=yes
 
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
 
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#define __STDC_CONSTANT_MACROS 1
+#define __STDC_LIMIT_MACROS 1
+#include <stdint.h>
 
 
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
 
 
+#include <stdio.h>
+#include <string.h>
+#define MVAL(macro) MVAL1(macro)
+#define MVAL1(expression) #expression
+static const char *macro_values[] =
+  {
+#ifdef INT8_MAX
+    MVAL (INT8_MAX),
+#endif
+#ifdef INT16_MAX
+    MVAL (INT16_MAX),
+#endif
+#ifdef INT32_MAX
+    MVAL (INT32_MAX),
+#endif
+#ifdef INT64_MAX
+    MVAL (INT64_MAX),
+#endif
+#ifdef UINT8_MAX
+    MVAL (UINT8_MAX),
+#endif
+#ifdef UINT16_MAX
+    MVAL (UINT16_MAX),
+#endif
+#ifdef UINT32_MAX
+    MVAL (UINT32_MAX),
+#endif
+#ifdef UINT64_MAX
+    MVAL (UINT64_MAX),
+#endif
+    NULL
+  };
 
+int
+main ()
+{
 
+  const char **mv;
+  for (mv = macro_values; *mv != NULL; mv++)
+    {
+      const char *value = *mv;
+      /* Test whether it looks like a cast expression.  */
+      if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
+          || strncmp (value, "((unsigned short)"/*)*/, 17) == 0
+          || strncmp (value, "((unsigned char)"/*)*/, 16) == 0
+          || strncmp (value, "((int)"/*)*/, 6) == 0
+          || strncmp (value, "((signed short)"/*)*/, 15) == 0
+          || strncmp (value, "((signed char)"/*)*/, 14) == 0)
+        return mv - macro_values + 1;
+    }
+  return 0;
 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_header_working_stdint_h=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
 
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_working_stdint_h" >&5
+$as_echo "$gl_cv_header_working_stdint_h" >&6; }
+  fi
 
-     if test $gl_cv_have_include_next = yes; then
-       gl_cv_next_strings_h='<'strings.h'>'
-     else
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <strings.h>" >&5
-$as_echo_n "checking absolute name of <strings.h>... " >&6; }
-if ${gl_cv_next_strings_h+:} false; then :
+  HAVE_C99_STDINT_H=0
+  HAVE_SYS_BITYPES_H=0
+  HAVE_SYS_INTTYPES_H=0
+  STDINT_H=stdint.h
+  if test "$gl_cv_header_working_stdint_h" = yes; then
+    HAVE_C99_STDINT_H=1
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stdint.h predates C++11" >&5
+$as_echo_n "checking whether stdint.h predates C++11... " >&6; }
+if ${gl_cv_header_stdint_predates_cxx11_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-             if test $ac_cv_header_strings_h = yes; then
-
-
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_cv_header_stdint_predates_cxx11_h=yes
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <strings.h>
 
-_ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#include <stdint.h>
 
-               gl_header_literal_regex=`echo 'strings.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_strings_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
-          else
-               gl_cv_next_strings_h='<'strings.h'>'
-             fi
 
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_strings_h" >&5
-$as_echo "$gl_cv_next_strings_h" >&6; }
-     fi
-     NEXT_STRINGS_H=$gl_cv_next_strings_h
 
-     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'strings.h'>'
-     else
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=$gl_cv_next_strings_h
-     fi
-     NEXT_AS_FIRST_DIRECTIVE_STRINGS_H=$gl_next_as_first_directive
+intmax_t im = INTMAX_MAX;
+int32_t i32 = INT32_C (0x7fffffff);
 
+int
+main ()
+{
 
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_header_stdint_predates_cxx11_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_stdint_predates_cxx11_h" >&5
+$as_echo "$gl_cv_header_stdint_predates_cxx11_h" >&6; }
 
+    if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then
 
-  if test $ac_cv_header_strings_h = yes; then
-    HAVE_STRINGS_H=1
-  else
-    HAVE_STRINGS_H=0
-  fi
+$as_echo "#define __STDC_CONSTANT_MACROS 1" >>confdefs.h
 
 
+$as_echo "#define __STDC_LIMIT_MACROS 1" >>confdefs.h
 
-    for gl_func in ffs strcasecmp strncasecmp; do
-    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
-$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
-if eval \${$as_gl_Symbol+:} false; then :
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stdint.h has UINTMAX_WIDTH etc." >&5
+$as_echo_n "checking whether stdint.h has UINTMAX_WIDTH etc.... " >&6; }
+if ${gl_cv_header_stdint_width+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  gl_cv_header_stdint_width=no
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-    /* Minix 3.1.8 has a bug: <sys/types.h> must be included before
-       <strings.h>.  */
-    #include <sys/types.h>
-    #include <strings.h>
+            /* Work if build is not clean.  */
+            #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
+            #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
+             #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+            #endif
+            #include <stdint.h>
+
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
+
+            int iw = UINTMAX_WIDTH;
 
 int
 main ()
 {
-#undef $gl_func
-  (void) $gl_func;
+
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$as_gl_Symbol=yes"
-else
-  eval "$as_gl_Symbol=no"
+  gl_cv_header_stdint_width=yes
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-eval ac_res=\$$as_gl_Symbol
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_header_stdint_width" >&5
+$as_echo "$gl_cv_header_stdint_width" >&6; }
+    if test "$gl_cv_header_stdint_width" = yes; then
+      STDINT_H=
+    fi
+  else
+            for ac_header in sys/inttypes.h sys/bitypes.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
 
-                     eval ac_cv_have_decl_$gl_func=yes
 fi
-      done
 
+done
 
-ac_fn_c_check_decl "$LINENO" "strndup" "ac_cv_have_decl_strndup" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strndup" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
+    if test $ac_cv_header_sys_inttypes_h = yes; then
+      HAVE_SYS_INTTYPES_H=1
+    fi
+    if test $ac_cv_header_sys_bitypes_h = yes; then
+      HAVE_SYS_BITYPES_H=1
+    fi
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRNDUP $ac_have_decl
-_ACEOF
 
+  if test $APPLE_UNIVERSAL_BUILD = 0; then
 
 
-ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strnlen" = xyes; then :
-  ac_have_decl=1
+  for gltype in ptrdiff_t size_t ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bit size of $gltype" >&5
+$as_echo_n "checking for bit size of $gltype... " >&6; }
+if eval \${gl_cv_bitsizeof_${gltype}+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
-  ac_have_decl=0
-fi
+  if ac_fn_c_compute_int "$LINENO" "sizeof ($gltype) * CHAR_BIT" "result"        "
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRNLEN $ac_have_decl
-_ACEOF
+#include <limits.h>"; then :
 
+else
+  result=unknown
+fi
 
+       eval gl_cv_bitsizeof_${gltype}=\$result
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stat file-mode macros are broken" >&5
-$as_echo_n "checking whether stat file-mode macros are broken... " >&6; }
-if ${ac_cv_header_stat_broken+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/stat.h>
+fi
+eval ac_res=\$gl_cv_bitsizeof_${gltype}
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    eval result=\$gl_cv_bitsizeof_${gltype}
+    if test $result = unknown; then
+                                                result=0
+    fi
+    GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+    cat >>confdefs.h <<_ACEOF
+#define BITSIZEOF_${GLTYPE} $result
+_ACEOF
 
-#if defined S_ISBLK && defined S_IFDIR
-extern char c1[S_ISBLK (S_IFDIR) ? -1 : 1];
-#endif
+    eval BITSIZEOF_${GLTYPE}=\$result
+  done
 
-#if defined S_ISBLK && defined S_IFCHR
-extern char c2[S_ISBLK (S_IFCHR) ? -1 : 1];
-#endif
 
-#if defined S_ISLNK && defined S_IFREG
-extern char c3[S_ISLNK (S_IFREG) ? -1 : 1];
-#endif
+  fi
 
-#if defined S_ISSOCK && defined S_IFREG
-extern char c4[S_ISSOCK (S_IFREG) ? -1 : 1];
-#endif
 
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stat_broken=no
+  for gltype in sig_atomic_t wchar_t wint_t ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bit size of $gltype" >&5
+$as_echo_n "checking for bit size of $gltype... " >&6; }
+if eval \${gl_cv_bitsizeof_${gltype}+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
-  ac_cv_header_stat_broken=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stat_broken" >&5
-$as_echo "$ac_cv_header_stat_broken" >&6; }
-if test $ac_cv_header_stat_broken = yes; then
+  if ac_fn_c_compute_int "$LINENO" "sizeof ($gltype) * CHAR_BIT" "result"        "
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
 
-$as_echo "#define STAT_MACROS_BROKEN 1" >>confdefs.h
+#include <limits.h>"; then :
 
+else
+  result=unknown
 fi
 
+       eval gl_cv_bitsizeof_${gltype}=\$result
 
+fi
+eval ac_res=\$gl_cv_bitsizeof_${gltype}
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    eval result=\$gl_cv_bitsizeof_${gltype}
+    if test $result = unknown; then
+                                                result=0
+    fi
+    GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+    cat >>confdefs.h <<_ACEOF
+#define BITSIZEOF_${GLTYPE} $result
+_ACEOF
 
-
-
-
-  GNULIB_MKTIME=0;
-  GNULIB_NANOSLEEP=0;
-  GNULIB_STRPTIME=0;
-  GNULIB_TIMEGM=0;
-  GNULIB_TIME_R=0;
-    HAVE_DECL_LOCALTIME_R=1;
-  HAVE_NANOSLEEP=1;
-  HAVE_STRPTIME=1;
-  HAVE_TIMEGM=1;
-        REPLACE_LOCALTIME_R=GNULIB_PORTCHECK;
-  REPLACE_MKTIME=GNULIB_PORTCHECK;
-  REPLACE_NANOSLEEP=GNULIB_PORTCHECK;
-  REPLACE_TIMEGM=GNULIB_PORTCHECK;
-
+    eval BITSIZEOF_${GLTYPE}=\$result
+  done
 
 
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <time.h>" >&5
-$as_echo_n "checking for struct timespec in <time.h>... " >&6; }
-if ${gl_cv_sys_struct_timespec_in_time_h+:} false; then :
+  for gltype in sig_atomic_t wchar_t wint_t ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gltype is signed" >&5
+$as_echo_n "checking whether $gltype is signed... " >&6; }
+if eval \${gl_cv_type_${gltype}_signed+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <time.h>
 
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
+
+            int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];
 int
 main ()
 {
-static struct timespec x; x.tv_sec = x.tv_nsec;
+
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_sys_struct_timespec_in_time_h=yes
+  result=yes
 else
-  gl_cv_sys_struct_timespec_in_time_h=no
+  result=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       eval gl_cv_type_${gltype}_signed=\$result
+
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_time_h" >&5
-$as_echo "$gl_cv_sys_struct_timespec_in_time_h" >&6; }
+eval ac_res=\$gl_cv_type_${gltype}_signed
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    eval result=\$gl_cv_type_${gltype}_signed
+    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+    if test "$result" = yes; then
+      cat >>confdefs.h <<_ACEOF
+#define HAVE_SIGNED_${GLTYPE} 1
+_ACEOF
 
-  TIME_H_DEFINES_STRUCT_TIMESPEC=0
-  SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
-  PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0
-  if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
-    TIME_H_DEFINES_STRUCT_TIMESPEC=1
-  else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <sys/time.h>" >&5
-$as_echo_n "checking for struct timespec in <sys/time.h>... " >&6; }
-if ${gl_cv_sys_struct_timespec_in_sys_time_h+:} false; then :
+      eval HAVE_SIGNED_${GLTYPE}=1
+    else
+      eval HAVE_SIGNED_${GLTYPE}=0
+    fi
+  done
+
+
+  gl_cv_type_ptrdiff_t_signed=yes
+  gl_cv_type_size_t_signed=no
+  if test $APPLE_UNIVERSAL_BUILD = 0; then
+
+
+  for gltype in ptrdiff_t size_t ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $gltype integer literal suffix" >&5
+$as_echo_n "checking for $gltype integer literal suffix... " >&6; }
+if eval \${gl_cv_type_${gltype}_suffix+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  eval gl_cv_type_${gltype}_suffix=no
+       eval result=\$gl_cv_type_${gltype}_signed
+       if test "$result" = yes; then
+         glsufu=
+       else
+         glsufu=u
+       fi
+       for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
+         case $glsuf in
+           '')  gltype1='int';;
+           l)   gltype1='long int';;
+           ll)  gltype1='long long int';;
+           i64) gltype1='__int64';;
+           u)   gltype1='unsigned int';;
+           ul)  gltype1='unsigned long int';;
+           ull) gltype1='unsigned long long int';;
+           ui64)gltype1='unsigned __int64';;
+         esac
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <sys/time.h>
 
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
+
+              extern $gltype foo;
+              extern $gltype1 foo;
 int
 main ()
 {
-static struct timespec x; x.tv_sec = x.tv_nsec;
+
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_sys_struct_timespec_in_sys_time_h=yes
-else
-  gl_cv_sys_struct_timespec_in_sys_time_h=no
+  eval gl_cv_type_${gltype}_suffix=\$glsuf
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+         eval result=\$gl_cv_type_${gltype}_suffix
+         test "$result" != no && break
+       done
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_sys_time_h" >&5
-$as_echo "$gl_cv_sys_struct_timespec_in_sys_time_h" >&6; }
-    if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then
-      SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
-    else
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <pthread.h>" >&5
-$as_echo_n "checking for struct timespec in <pthread.h>... " >&6; }
-if ${gl_cv_sys_struct_timespec_in_pthread_h+:} false; then :
+eval ac_res=\$gl_cv_type_${gltype}_suffix
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+    eval result=\$gl_cv_type_${gltype}_suffix
+    test "$result" = no && result=
+    eval ${GLTYPE}_SUFFIX=\$result
+    cat >>confdefs.h <<_ACEOF
+#define ${GLTYPE}_SUFFIX $result
+_ACEOF
+
+  done
+
+
+  fi
+
+
+  for gltype in sig_atomic_t wchar_t wint_t ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $gltype integer literal suffix" >&5
+$as_echo_n "checking for $gltype integer literal suffix... " >&6; }
+if eval \${gl_cv_type_${gltype}_suffix+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  eval gl_cv_type_${gltype}_suffix=no
+       eval result=\$gl_cv_type_${gltype}_signed
+       if test "$result" = yes; then
+         glsufu=
+       else
+         glsufu=u
+       fi
+       for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
+         case $glsuf in
+           '')  gltype1='int';;
+           l)   gltype1='long int';;
+           ll)  gltype1='long long int';;
+           i64) gltype1='__int64';;
+           u)   gltype1='unsigned int';;
+           ul)  gltype1='unsigned long int';;
+           ull) gltype1='unsigned long long int';;
+           ui64)gltype1='unsigned __int64';;
+         esac
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <pthread.h>
 
+  /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+     included before <wchar.h>.  */
+  #include <stddef.h>
+  #include <signal.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
+
+              extern $gltype foo;
+              extern $gltype1 foo;
 int
 main ()
 {
-static struct timespec x; x.tv_sec = x.tv_nsec;
+
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
-  gl_cv_sys_struct_timespec_in_pthread_h=yes
-else
-  gl_cv_sys_struct_timespec_in_pthread_h=no
+  eval gl_cv_type_${gltype}_suffix=\$glsuf
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+         eval result=\$gl_cv_type_${gltype}_suffix
+         test "$result" != no && break
+       done
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_pthread_h" >&5
-$as_echo "$gl_cv_sys_struct_timespec_in_pthread_h" >&6; }
-      if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then
-        PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1
-      fi
-    fi
-  fi
-
-
-
-
-
-
-
-
-
+eval ac_res=\$gl_cv_type_${gltype}_suffix
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+    eval result=\$gl_cv_type_${gltype}_suffix
+    test "$result" = no && result=
+    eval ${GLTYPE}_SUFFIX=\$result
+    cat >>confdefs.h <<_ACEOF
+#define ${GLTYPE}_SUFFIX $result
+_ACEOF
 
+  done
 
 
 
+          if test $GNULIB_OVERRIDES_WINT_T = 1; then
+    BITSIZEOF_WINT_T=32
+  fi
 
+  fi
 
-     if test $gl_cv_have_include_next = yes; then
-       gl_cv_next_time_h='<'time.h'>'
-     else
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <time.h>" >&5
-$as_echo_n "checking absolute name of <time.h>... " >&6; }
-if ${gl_cv_next_time_h+:} false; then :
-  $as_echo_n "(cached) " >&6
+    LIMITS_H=limits.h
+   if test -n "$LIMITS_H"; then
+  GL_GENERATE_LIMITS_H_TRUE=
+  GL_GENERATE_LIMITS_H_FALSE='#'
 else
-
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <time.h>
-
-_ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
-
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
-
-               gl_header_literal_regex=`echo 'time.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_time_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
-
-
+  GL_GENERATE_LIMITS_H_TRUE='#'
+  GL_GENERATE_LIMITS_H_FALSE=
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_time_h" >&5
-$as_echo "$gl_cv_next_time_h" >&6; }
-     fi
-     NEXT_TIME_H=$gl_cv_next_time_h
-
-     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'time.h'>'
-     else
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=$gl_cv_next_time_h
-     fi
-     NEXT_AS_FIRST_DIRECTIVE_TIME_H=$gl_next_as_first_directive
-
-
-
-
-
-
 
 
 
 
 
 
+   if test -n "$STDINT_H"; then
+  GL_GENERATE_STDINT_H_TRUE=
+  GL_GENERATE_STDINT_H_FALSE='#'
+else
+  GL_GENERATE_STDINT_H_TRUE='#'
+  GL_GENERATE_STDINT_H_FALSE=
+fi
 
 
-gl_libunistring_sed_extract_major='/^[0-9]/{s/^\([0-9]*\).*/\1/p;q;}
-i\
-0
-q
-'
-gl_libunistring_sed_extract_minor='/^[0-9][0-9]*[.][0-9]/{s/^[0-9]*[.]\([0-9]*\).*/\1/p;q;}
-i\
-0
-q
-'
-gl_libunistring_sed_extract_subminor='/^[0-9][0-9]*[.][0-9][0-9]*[.][0-9]/{s/^[0-9]*[.][0-9]*[.]\([0-9]*\).*/\1/p;q;}
-i\
-0
-q
-'
 
+  GNULIB_FFS=0;
+    HAVE_FFS=1;
+  HAVE_STRCASECMP=1;
+  HAVE_DECL_STRNCASECMP=1;
 
-  if test "$HAVE_LIBUNISTRING" = yes; then
-    LIBUNISTRING_VERSION_MAJOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_major"`
-    LIBUNISTRING_VERSION_MINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_minor"`
-    LIBUNISTRING_VERSION_SUBMINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_subminor"`
-  fi
 
 
 
 
 
 
+  for ac_func in strcasestr
+do :
+  ac_fn_c_check_func "$LINENO" "strcasestr" "ac_cv_func_strcasestr"
+if test "x$ac_cv_func_strcasestr" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRCASESTR 1
+_ACEOF
 
+fi
+done
 
+  if test $ac_cv_func_strcasestr = no; then
+    HAVE_STRCASESTR=0
+  else
+    if test "$gl_cv_func_memchr_works" != yes; then
+      REPLACE_STRCASESTR=1
+    else
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strcasestr works" >&5
+$as_echo_n "checking whether strcasestr works... " >&6; }
+if ${gl_cv_func_strcasestr_works_always+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+                                                         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#ifdef __GNU_LIBRARY__
+ #include <features.h>
+ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \
+     || defined __UCLIBC__
+  Lucky user
+ #endif
+#elif defined __CYGWIN__
+ #include <cygwin/version.h>
+ #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7)
+  Lucky user
+ #endif
+#else
+  Lucky user
+#endif
 
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "Lucky user" >/dev/null 2>&1; then :
+  gl_cv_func_strcasestr_works_always="guessing yes"
+else
+  gl_cv_func_strcasestr_works_always="guessing no"
+fi
+rm -f conftest*
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if environ is properly declared" >&5
-$as_echo_n "checking if environ is properly declared... " >&6; }
-  if ${gt_cv_var_environ_declaration+:} false; then :
-  $as_echo_n "(cached) " >&6
 else
-
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#if HAVE_UNISTD_H
-     #include <unistd.h>
-     #endif
-     /* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>.  */
-     #include <stdlib.h>
 
-           extern struct { int foo; } environ;
+#include <string.h> /* for strcasestr */
+#define P "_EF_BF_BD"
+#define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P
+#define NEEDLE P P P P P
+
 int
 main ()
 {
-environ.foo = 1;
+return !!strcasestr (HAYSTACK, NEEDLE);
+
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gt_cv_var_environ_declaration=no
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_strcasestr_works_always=yes
 else
-  gt_cv_var_environ_declaration=yes
+  gl_cv_func_strcasestr_works_always=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_var_environ_declaration" >&5
-$as_echo "$gt_cv_var_environ_declaration" >&6; }
-  if test $gt_cv_var_environ_declaration = yes; then
-
-$as_echo "#define HAVE_ENVIRON_DECL 1" >>confdefs.h
-
-  fi
-
 
-  if test $gt_cv_var_environ_declaration != yes; then
-    HAVE_DECL_ENVIRON=0
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strcasestr_works_always" >&5
+$as_echo "$gl_cv_func_strcasestr_works_always" >&6; }
+      case "$gl_cv_func_strcasestr_works_always" in
+        *yes) ;;
+        *)
+          REPLACE_STRCASESTR=1
+          ;;
+      esac
+    fi
   fi
 
 
 
+ac_fn_c_check_decl "$LINENO" "strdup" "ac_cv_have_decl_strdup" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strdup" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
 
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRDUP $ac_have_decl
+_ACEOF
 
 
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ungetc works on arbitrary bytes" >&5
-$as_echo_n "checking whether ungetc works on arbitrary bytes... " >&6; }
-if ${gl_cv_func_ungetc_works+:} false; then :
+     REPLACE_STRERROR_0=0
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strerror(0) succeeds" >&5
+$as_echo_n "checking whether strerror(0) succeeds... " >&6; }
+if ${gl_cv_func_strerror_0_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  gl_cv_func_ungetc_works='guessing no'
+  case "$host_os" in
+                 # Guess yes on glibc systems.
+         *-gnu*) gl_cv_func_strerror_0_works="guessing yes" ;;
+                 # If we don't know, assume the worst.
+         *)      gl_cv_func_strerror_0_works="guessing no" ;;
+       esac
+
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-#include <stdio.h>
+#include <string.h>
+           #include <errno.h>
 
 int
 main ()
 {
-FILE *f;
-           if (!(f = fopen ("conftest.tmp", "w+"))) return 1;
-           if (fputs ("abc", f) < 0) return 2;
-           rewind (f);
-           if (fgetc (f) != 'a') return 3;
-           if (fgetc (f) != 'b') return 4;
-           if (ungetc ('d', f) != 'd') return 5;
-           if (ftell (f) != 1) return 6;
-           if (fgetc (f) != 'd') return 7;
-           if (ftell (f) != 2) return 8;
-           if (fseek (f, 0, SEEK_CUR) != 0) return 9;
-           if (ftell (f) != 2) return 10;
-           if (fgetc (f) != 'c') return 11;
-           fclose (f); remove ("conftest.tmp");
+int result = 0;
+           char *str;
+           errno = 0;
+           str = strerror (0);
+           if (!*str) result |= 1;
+           if (errno) result |= 2;
+           if (strstr (str, "nknown") || strstr (str, "ndefined"))
+             result |= 4;
+           return result;
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_func_ungetc_works=yes
+  gl_cv_func_strerror_0_works=yes
 else
-  gl_cv_func_ungetc_works=no
+  gl_cv_func_strerror_0_works=no
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -16166,35 +18533,17 @@ fi
 
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_ungetc_works" >&5
-$as_echo "$gl_cv_func_ungetc_works" >&6; }
-  if test "$gl_cv_func_ungetc_works" != yes; then
-
-$as_echo "#define FUNC_UNGETC_BROKEN 1" >>confdefs.h
-
-  fi
-
-
-
-
-  GNULIB_IMAXABS=0;
-  GNULIB_IMAXDIV=0;
-  GNULIB_STRTOIMAX=0;
-  GNULIB_STRTOUMAX=0;
-    HAVE_DECL_IMAXABS=1;
-  HAVE_DECL_IMAXDIV=1;
-  HAVE_DECL_STRTOIMAX=1;
-  HAVE_DECL_STRTOUMAX=1;
-  REPLACE_STRTOIMAX=0;
-  INT32_MAX_LT_INTMAX_MAX=1;
-  INT64_MAX_EQ_LONG_MAX='defined _LP64';
-  PRI_MACROS_BROKEN=0;
-  PRIPTR_PREFIX=__PRIPTR_PREFIX;
-  UINT32_MAX_LT_UINTMAX_MAX=1;
-  UINT64_MAX_EQ_ULONG_MAX='defined _LP64';
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strerror_0_works" >&5
+$as_echo "$gl_cv_func_strerror_0_works" >&6; }
+  case "$gl_cv_func_strerror_0_works" in
+    *yes) ;;
+    *)
+      REPLACE_STRERROR_0=1
 
+$as_echo "#define REPLACE_STRERROR_0 1" >>confdefs.h
 
+      ;;
+  esac
 
 
 
@@ -16208,75 +18557,71 @@ $as_echo "#define FUNC_UNGETC_BROKEN 1"
 
 
      if test $gl_cv_have_include_next = yes; then
-       gl_cv_next_inttypes_h='<'inttypes.h'>'
+       gl_cv_next_string_h='<'string.h'>'
      else
-       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <inttypes.h>" >&5
-$as_echo_n "checking absolute name of <inttypes.h>... " >&6; }
-if ${gl_cv_next_inttypes_h+:} false; then :
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <string.h>" >&5
+$as_echo_n "checking absolute name of <string.h>... " >&6; }
+if ${gl_cv_next_string_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-             if test $ac_cv_header_inttypes_h = yes; then
 
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <inttypes.h>
-
+#include <string.h>
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'string.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
-               gl_header_literal_regex=`echo 'inttypes.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_inttypes_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
-          else
-               gl_cv_next_inttypes_h='<'inttypes.h'>'
-             fi
+        gl_cv_absolute_string_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_string_h
+           gl_cv_next_string_h='"'$gl_header'"'
 
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_inttypes_h" >&5
-$as_echo "$gl_cv_next_inttypes_h" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_string_h" >&5
+$as_echo "$gl_cv_next_string_h" >&6; }
      fi
-     NEXT_INTTYPES_H=$gl_cv_next_inttypes_h
+     NEXT_STRING_H=$gl_cv_next_string_h
 
      if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
        # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'inttypes.h'>'
+       gl_next_as_first_directive='<'string.h'>'
      else
        # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=$gl_cv_next_inttypes_h
+       gl_next_as_first_directive=$gl_cv_next_string_h
      fi
-     NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H=$gl_next_as_first_directive
-
-
+     NEXT_AS_FIRST_DIRECTIVE_STRING_H=$gl_next_as_first_directive
 
 
 
 
 
 
-    for gl_func in imaxabs imaxdiv strtoimax strtoumax; do
+    for gl_func in ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul      strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r      strerror_r strsignal strverscmp; do
     as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
 $as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
@@ -16285,7 +18630,7 @@ if eval \${$as_gl_Symbol+:} false; then
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <inttypes.h>
+#include <string.h>
 
 int
 main ()
@@ -16317,1304 +18662,652 @@ fi
 
 
 
-  for ac_header in inttypes.h
-do :
-  ac_fn_c_check_header_mongrel "$LINENO" "inttypes.h" "ac_cv_header_inttypes_h" "$ac_includes_default"
-if test "x$ac_cv_header_inttypes_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_INTTYPES_H 1
-_ACEOF
-
-fi
-
-done
-
-  if test $ac_cv_header_inttypes_h = yes; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the inttypes.h PRIxNN macros are broken" >&5
-$as_echo_n "checking whether the inttypes.h PRIxNN macros are broken... " >&6; }
-if ${gt_cv_inttypes_pri_broken+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <inttypes.h>
-#ifdef PRId32
-char *p = PRId32;
-#endif
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gt_cv_inttypes_pri_broken=no
-else
-  gt_cv_inttypes_pri_broken=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_inttypes_pri_broken" >&5
-$as_echo "$gt_cv_inttypes_pri_broken" >&6; }
-  fi
-  if test "$gt_cv_inttypes_pri_broken" = yes; then
-
-cat >>confdefs.h <<_ACEOF
-#define PRI_MACROS_BROKEN 1
-_ACEOF
-
-    PRI_MACROS_BROKEN=1
-  else
-    PRI_MACROS_BROKEN=0
-  fi
-
-
-
-  GNULIB_SETLOCALE=0;
-  GNULIB_DUPLOCALE=0;
-    HAVE_DUPLOCALE=1;
-  REPLACE_SETLOCALE=0;
-  REPLACE_DUPLOCALE=0;
-
-
-
-
-
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LC_MESSAGES" >&5
-$as_echo_n "checking for LC_MESSAGES... " >&6; }
-if ${gt_cv_val_LC_MESSAGES+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <locale.h>
-int
-main ()
-{
-return LC_MESSAGES
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gt_cv_val_LC_MESSAGES=yes
-else
-  gt_cv_val_LC_MESSAGES=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_val_LC_MESSAGES" >&5
-$as_echo "$gt_cv_val_LC_MESSAGES" >&6; }
-  if test $gt_cv_val_LC_MESSAGES = yes; then
-
-$as_echo "#define HAVE_LC_MESSAGES 1" >>confdefs.h
-
-  fi
-
-
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CFPreferencesCopyAppValue" >&5
-$as_echo_n "checking for CFPreferencesCopyAppValue... " >&6; }
-if ${gt_cv_func_CFPreferencesCopyAppValue+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  gt_save_LIBS="$LIBS"
-     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <CoreFoundation/CFPreferences.h>
-int
-main ()
-{
-CFPreferencesCopyAppValue(NULL, NULL)
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gt_cv_func_CFPreferencesCopyAppValue=yes
-else
-  gt_cv_func_CFPreferencesCopyAppValue=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-     LIBS="$gt_save_LIBS"
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_func_CFPreferencesCopyAppValue" >&5
-$as_echo "$gt_cv_func_CFPreferencesCopyAppValue" >&6; }
-  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
-
-$as_echo "#define HAVE_CFPREFERENCESCOPYAPPVALUE 1" >>confdefs.h
-
-  fi
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CFLocaleCopyCurrent" >&5
-$as_echo_n "checking for CFLocaleCopyCurrent... " >&6; }
-if ${gt_cv_func_CFLocaleCopyCurrent+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  gt_save_LIBS="$LIBS"
-     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <CoreFoundation/CFLocale.h>
-int
-main ()
-{
-CFLocaleCopyCurrent();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gt_cv_func_CFLocaleCopyCurrent=yes
-else
-  gt_cv_func_CFLocaleCopyCurrent=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-     LIBS="$gt_save_LIBS"
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_func_CFLocaleCopyCurrent" >&5
-$as_echo "$gt_cv_func_CFLocaleCopyCurrent" >&6; }
-  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
 
-$as_echo "#define HAVE_CFLOCALECOPYCURRENT 1" >>confdefs.h
 
-  fi
-  INTL_MACOSX_LIBS=
-  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
-    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
-  fi
 
 
 
-      if test "X$prefix" = "XNONE"; then
-    acl_final_prefix="$ac_default_prefix"
-  else
-    acl_final_prefix="$prefix"
-  fi
-  if test "X$exec_prefix" = "XNONE"; then
-    acl_final_exec_prefix='${prefix}'
-  else
-    acl_final_exec_prefix="$exec_prefix"
-  fi
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
-  prefix="$acl_save_prefix"
 
 
-# Check whether --with-gnu-ld was given.
-if test "${with_gnu_ld+set}" = set; then :
-  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
-else
-  with_gnu_ld=no
-fi
 
-# Prepare PATH_SEPARATOR.
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
-  # contains only /bin. Note that ksh looks also at the FPATH variable,
-  # so we have to set that as well for the test.
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
-    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
-           || PATH_SEPARATOR=';'
-       }
-fi
-ac_prog=ld
-if test "$GCC" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by GCC" >&5
-$as_echo_n "checking for ld used by GCC... " >&6; }
-  case $host in
-  *-*-mingw*)
-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
-  esac
-  case $ac_prog in
-    # Accept absolute paths.
-    [\\/]* | [A-Za-z]:[\\/]*)
-      re_direlt='/[^/][^/]*/\.\./'
-      # Canonicalize the path of ld
-      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
-      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
-        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
-      done
-      test -z "$LD" && LD="$ac_prog"
-      ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
-elif test "$with_gnu_ld" = yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
-$as_echo_n "checking for GNU ld... " >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
-$as_echo_n "checking for non-GNU ld... " >&6; }
-fi
-if ${acl_cv_path_LD+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -z "$LD"; then
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      acl_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some GNU ld's only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
-      *GNU* | *'with BFD'*)
-        test "$with_gnu_ld" != no && break ;;
-      *)
-        test "$with_gnu_ld" != yes && break ;;
-      esac
-    fi
-  done
-  IFS="$ac_save_ifs"
-else
-  acl_cv_path_LD="$LD" # Let the user override the test with a path.
-fi
-fi
 
-LD="$acl_cv_path_LD"
-if test -n "$LD"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
-$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
-if ${acl_cv_prog_gnu_ld+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
-  acl_cv_prog_gnu_ld=yes ;;
-*)
-  acl_cv_prog_gnu_ld=no ;;
-esac
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_prog_gnu_ld" >&5
-$as_echo "$acl_cv_prog_gnu_ld" >&6; }
-with_gnu_ld=$acl_cv_prog_gnu_ld
 
 
 
 
-                                                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shared library run path origin" >&5
-$as_echo_n "checking for shared library run path origin... " >&6; }
-if ${acl_cv_rpath+:} false; then :
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_strings_h='<'strings.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <strings.h>" >&5
+$as_echo_n "checking absolute name of <strings.h>... " >&6; }
+if ${gl_cv_next_strings_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-    CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
-    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
-    . ./conftest.sh
-    rm -f ./conftest.sh
-    acl_cv_rpath=done
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_rpath" >&5
-$as_echo "$acl_cv_rpath" >&6; }
-  wl="$acl_cv_wl"
-  acl_libext="$acl_cv_libext"
-  acl_shlibext="$acl_cv_shlibext"
-  acl_libname_spec="$acl_cv_libname_spec"
-  acl_library_names_spec="$acl_cv_library_names_spec"
-  acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
-  acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
-  acl_hardcode_direct="$acl_cv_hardcode_direct"
-  acl_hardcode_minus_L="$acl_cv_hardcode_minus_L"
-    # Check whether --enable-rpath was given.
-if test "${enable_rpath+set}" = set; then :
-  enableval=$enable_rpath; :
-else
-  enable_rpath=yes
-fi
-
+             if test $ac_cv_header_strings_h = yes; then
+
 
 
 
-  acl_libdirstem=lib
-  acl_libdirstem2=
-  case "$host_os" in
-    solaris*)
-                                    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit host" >&5
-$as_echo_n "checking for 64-bit host... " >&6; }
-if ${gl_cv_solaris_64bit+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-#ifdef _LP64
-sixtyfour bits
-#endif
-
+#include <strings.h>
 _ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "sixtyfour bits" >/dev/null 2>&1; then :
-  gl_cv_solaris_64bit=yes
-else
-  gl_cv_solaris_64bit=no
-fi
-rm -f conftest*
-
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_solaris_64bit" >&5
-$as_echo "$gl_cv_solaris_64bit" >&6; }
-      if test $gl_cv_solaris_64bit = yes; then
-        acl_libdirstem=lib/64
-        case "$host_cpu" in
-          sparc*)        acl_libdirstem2=lib/sparcv9 ;;
-          i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
-        esac
-      fi
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
       ;;
     *)
-      searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
-      if test -n "$searchpath"; then
-        acl_save_IFS="${IFS= 	}"; IFS=":"
-        for searchdir in $searchpath; do
-          if test -d "$searchdir"; then
-            case "$searchdir" in
-              */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
-              */../ | */.. )
-                # Better ignore directories of this form. They are misleading.
-                ;;
-              *) searchdir=`cd "$searchdir" && pwd`
-                 case "$searchdir" in
-                   */lib64 ) acl_libdirstem=lib64 ;;
-                 esac ;;
-            esac
-          fi
-        done
-        IFS="$acl_save_IFS"
-      fi
+      gl_dirsep_regex='\/'
       ;;
   esac
-  test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'strings.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
+        gl_cv_absolute_strings_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
+           gl_header=$gl_cv_absolute_strings_h
+           gl_cv_next_strings_h='"'$gl_header'"'
+          else
+               gl_cv_next_strings_h='<'strings.h'>'
+             fi
 
-  gl_threads_api=none
-  LIBTHREAD=
-  LTLIBTHREAD=
-  LIBMULTITHREAD=
-  LTLIBMULTITHREAD=
-  if test "$gl_use_threads" != no; then
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether imported symbols can be declared weak" >&5
-$as_echo_n "checking whether imported symbols can be declared weak... " >&6; }
-if ${gl_cv_have_weak+:} false; then :
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_strings_h" >&5
+$as_echo "$gl_cv_next_strings_h" >&6; }
+     fi
+     NEXT_STRINGS_H=$gl_cv_next_strings_h
+
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'strings.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_strings_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_STRINGS_H=$gl_next_as_first_directive
+
+
+
+
+  if test $ac_cv_header_strings_h = yes; then
+    HAVE_STRINGS_H=1
+  else
+    HAVE_STRINGS_H=0
+  fi
+
+
+
+    for gl_func in ffs strcasecmp strncasecmp; do
+    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
+$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
+if eval \${$as_gl_Symbol+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  gl_cv_have_weak=no
-              cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-extern void xyzzy ();
-#pragma weak xyzzy
+
+    /* Minix 3.1.8 has a bug: <sys/types.h> must be included before
+       <strings.h>.  */
+    #include <sys/types.h>
+    #include <strings.h>
+
 int
 main ()
 {
-xyzzy();
+#undef $gl_func
+  (void) $gl_func;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gl_cv_have_weak=maybe
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_gl_Symbol=yes"
+else
+  eval "$as_gl_Symbol=no"
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-       if test $gl_cv_have_weak = maybe; then
-                           if test "$cross_compiling" = yes; then :
-                          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __ELF__
-               Extensible Linking Format
-               #endif
-
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$as_gl_Symbol
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
 _ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "Extensible Linking Format" >/dev/null 2>&1; then :
-  gl_cv_have_weak="guessing yes"
-else
-  gl_cv_have_weak="guessing no"
+
+                     eval ac_cv_have_decl_$gl_func=yes
 fi
-rm -f conftest*
+      done
 
 
+ac_fn_c_check_decl "$LINENO" "strndup" "ac_cv_have_decl_strndup" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strndup" = xyes; then :
+  ac_have_decl=1
 else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
+  ac_have_decl=0
+fi
 
-#include <stdio.h>
-#pragma weak fputs
-int main ()
-{
-  return (fputs == NULL);
-}
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNDUP $ac_have_decl
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  gl_cv_have_weak=yes
-else
-  gl_cv_have_weak=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
 
-       fi
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_have_weak" >&5
-$as_echo "$gl_cv_have_weak" >&6; }
-    if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
-      # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that
-      # it groks <pthread.h>. It's added above, in gl_THREADLIB_EARLY_BODY.
-      ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
-if test "x$ac_cv_header_pthread_h" = xyes; then :
-  gl_have_pthread_h=yes
+
+ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default"
+if test "x$ac_cv_have_decl_strnlen" = xyes; then :
+  ac_have_decl=1
 else
-  gl_have_pthread_h=no
+  ac_have_decl=0
 fi
 
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNLEN $ac_have_decl
+_ACEOF
+
 
-      if test "$gl_have_pthread_h" = yes; then
-        # Other possible tests:
-        #   -lpthreads (FSU threads, PCthreads)
-        #   -lgthreads
-        gl_have_pthread=
-        # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist
-        # in libc. IRIX 6.5 has the first one in both libc and libpthread, but
-        # the second one only in libpthread, and lock.c needs it.
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  GNULIB_MKTIME=0;
+  GNULIB_NANOSLEEP=0;
+  GNULIB_STRPTIME=0;
+  GNULIB_TIMEGM=0;
+  GNULIB_TIME_R=0;
+  GNULIB_TIME_RZ=0;
+    HAVE_DECL_LOCALTIME_R=1;
+  HAVE_NANOSLEEP=1;
+  HAVE_STRPTIME=1;
+  HAVE_TIMEGM=1;
+        REPLACE_LOCALTIME_R=GNULIB_PORTCHECK;
+  REPLACE_MKTIME=GNULIB_PORTCHECK;
+  REPLACE_NANOSLEEP=GNULIB_PORTCHECK;
+  REPLACE_TIMEGM=GNULIB_PORTCHECK;
+
+      : ${GNULIB_GETTIMEOFDAY=0};
+        REPLACE_GMTIME=0;
+  REPLACE_LOCALTIME=0;
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <time.h>" >&5
+$as_echo_n "checking for struct timespec in <time.h>... " >&6; }
+if ${gl_cv_sys_struct_timespec_in_time_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <pthread.h>
+#include <time.h>
+
 int
 main ()
 {
-pthread_mutex_lock((pthread_mutex_t*)0);
-               pthread_mutexattr_init((pthread_mutexattr_t*)0);
+static struct timespec x; x.tv_sec = x.tv_nsec;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gl_have_pthread=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timespec_in_time_h=yes
+else
+  gl_cv_sys_struct_timespec_in_time_h=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-        # Test for libpthread by looking for pthread_kill. (Not pthread_self,
-        # since it is defined as a macro on OSF/1.)
-        if test -n "$gl_have_pthread"; then
-          # The program links fine without libpthread. But it may actually
-          # need to link with libpthread in order to create multiple threads.
-          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lpthread" >&5
-$as_echo_n "checking for pthread_kill in -lpthread... " >&6; }
-if ${ac_cv_lib_pthread_pthread_kill+:} false; then :
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_time_h" >&5
+$as_echo "$gl_cv_sys_struct_timespec_in_time_h" >&6; }
+
+  TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0
+  UNISTD_H_DEFINES_STRUCT_TIMESPEC=0
+  if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
+    TIME_H_DEFINES_STRUCT_TIMESPEC=1
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <sys/time.h>" >&5
+$as_echo_n "checking for struct timespec in <sys/time.h>... " >&6; }
+if ${gl_cv_sys_struct_timespec_in_sys_time_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpthread  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <sys/time.h>
 
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char pthread_kill ();
 int
 main ()
 {
-return pthread_kill ();
+static struct timespec x; x.tv_sec = x.tv_nsec;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_pthread_pthread_kill=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timespec_in_sys_time_h=yes
 else
-  ac_cv_lib_pthread_pthread_kill=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+  gl_cv_sys_struct_timespec_in_sys_time_h=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_kill" >&5
-$as_echo "$ac_cv_lib_pthread_pthread_kill" >&6; }
-if test "x$ac_cv_lib_pthread_pthread_kill" = xyes; then :
-  LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread
-             # On Solaris and HP-UX, most pthread functions exist also in libc.
-             # Therefore pthread_in_use() needs to actually try to create a
-             # thread: pthread_create from libc will fail, whereas
-             # pthread_create will actually create a thread.
-             case "$host_os" in
-               solaris* | hpux*)
-
-$as_echo "#define PTHREAD_IN_USE_DETECTION_HARD 1" >>confdefs.h
-
-             esac
-
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
-        else
-          # Some library is needed. Try libpthread and libc_r.
-          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lpthread" >&5
-$as_echo_n "checking for pthread_kill in -lpthread... " >&6; }
-if ${ac_cv_lib_pthread_pthread_kill+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_sys_time_h" >&5
+$as_echo "$gl_cv_sys_struct_timespec_in_sys_time_h" >&6; }
+    if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then
+      SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <pthread.h>" >&5
+$as_echo_n "checking for struct timespec in <pthread.h>... " >&6; }
+if ${gl_cv_sys_struct_timespec_in_pthread_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpthread  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <pthread.h>
 
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char pthread_kill ();
 int
 main ()
 {
-return pthread_kill ();
+static struct timespec x; x.tv_sec = x.tv_nsec;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_pthread_pthread_kill=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timespec_in_pthread_h=yes
 else
-  ac_cv_lib_pthread_pthread_kill=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+  gl_cv_sys_struct_timespec_in_pthread_h=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_kill" >&5
-$as_echo "$ac_cv_lib_pthread_pthread_kill" >&6; }
-if test "x$ac_cv_lib_pthread_pthread_kill" = xyes; then :
-  gl_have_pthread=yes
-             LIBTHREAD=-lpthread LTLIBTHREAD=-lpthread
-             LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
-          if test -z "$gl_have_pthread"; then
-            # For FreeBSD 4.
-            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_kill in -lc_r" >&5
-$as_echo_n "checking for pthread_kill in -lc_r... " >&6; }
-if ${ac_cv_lib_c_r_pthread_kill+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_pthread_h" >&5
+$as_echo "$gl_cv_sys_struct_timespec_in_pthread_h" >&6; }
+      if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then
+        PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1
+      else
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timespec in <unistd.h>" >&5
+$as_echo_n "checking for struct timespec in <unistd.h>... " >&6; }
+if ${gl_cv_sys_struct_timespec_in_unistd_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lc_r  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
+#include <unistd.h>
 
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char pthread_kill ();
 int
 main ()
 {
-return pthread_kill ();
+static struct timespec x; x.tv_sec = x.tv_nsec;
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_c_r_pthread_kill=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  gl_cv_sys_struct_timespec_in_unistd_h=yes
 else
-  ac_cv_lib_c_r_pthread_kill=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+  gl_cv_sys_struct_timespec_in_unistd_h=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_kill" >&5
-$as_echo "$ac_cv_lib_c_r_pthread_kill" >&6; }
-if test "x$ac_cv_lib_c_r_pthread_kill" = xyes; then :
-  gl_have_pthread=yes
-               LIBTHREAD=-lc_r LTLIBTHREAD=-lc_r
-               LIBMULTITHREAD=-lc_r LTLIBMULTITHREAD=-lc_r
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
-          fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_sys_struct_timespec_in_unistd_h" >&5
+$as_echo "$gl_cv_sys_struct_timespec_in_unistd_h" >&6; }
+        if test $gl_cv_sys_struct_timespec_in_unistd_h = yes; then
+          UNISTD_H_DEFINES_STRUCT_TIMESPEC=1
         fi
-        if test -n "$gl_have_pthread"; then
-          gl_threads_api=posix
+      fi
+    fi
+  fi
 
-$as_echo "#define USE_POSIX_THREADS 1" >>confdefs.h
 
-          if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
-            if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
 
-$as_echo "#define USE_POSIX_THREADS_WEAK 1" >>confdefs.h
 
-              LIBTHREAD=
-              LTLIBTHREAD=
-            fi
-          fi
-        fi
-      fi
-    fi
-    if test -z "$gl_have_pthread"; then
-      if test "$gl_use_threads" = yes || test "$gl_use_threads" = solaris; then
-        gl_have_solaristhread=
-        gl_save_LIBS="$LIBS"
-        LIBS="$LIBS -lthread"
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
 
-#include <thread.h>
-#include <synch.h>
 
-int
-main ()
-{
-thr_self();
-  ;
-  return 0;
-}
+
+
+
+
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_time_h='<'time.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <time.h>" >&5
+$as_echo_n "checking absolute name of <time.h>... " >&6; }
+if ${gl_cv_next_time_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <time.h>
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gl_have_solaristhread=yes
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
+
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'time.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_time_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_time_h
+           gl_cv_next_time_h='"'$gl_header'"'
+
+
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-        LIBS="$gl_save_LIBS"
-        if test -n "$gl_have_solaristhread"; then
-          gl_threads_api=solaris
-          LIBTHREAD=-lthread
-          LTLIBTHREAD=-lthread
-          LIBMULTITHREAD="$LIBTHREAD"
-          LTLIBMULTITHREAD="$LTLIBTHREAD"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_time_h" >&5
+$as_echo "$gl_cv_next_time_h" >&6; }
+     fi
+     NEXT_TIME_H=$gl_cv_next_time_h
 
-$as_echo "#define USE_SOLARIS_THREADS 1" >>confdefs.h
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'time.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_time_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_TIME_H=$gl_next_as_first_directive
 
-          if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
 
-$as_echo "#define USE_SOLARIS_THREADS_WEAK 1" >>confdefs.h
 
-            LIBTHREAD=
-            LTLIBTHREAD=
-          fi
-        fi
-      fi
-    fi
-    if test "$gl_use_threads" = pth; then
-      gl_save_CPPFLAGS="$CPPFLAGS"
 
 
 
 
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libpth" >&5
-$as_echo_n "checking how to link with libpth... " >&6; }
-if ${ac_cv_libpth_libs+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
 
 
 
 
 
 
+gl_libunistring_sed_extract_major='/^[0-9]/{s/^\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+gl_libunistring_sed_extract_minor='/^[0-9][0-9]*[.][0-9]/{s/^[0-9]*[.]\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+gl_libunistring_sed_extract_subminor='/^[0-9][0-9]*[.][0-9][0-9]*[.][0-9]/{s/^[0-9]*[.][0-9]*[.]\([0-9]*\).*/\1/p;q;}
+i\
+0
+q
+'
+
+
+  if test "$HAVE_LIBUNISTRING" = yes; then
+    LIBUNISTRING_VERSION_MAJOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_major"`
+    LIBUNISTRING_VERSION_MINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_minor"`
+    LIBUNISTRING_VERSION_SUBMINOR=`echo "$LIBUNISTRING_VERSION" | sed -n -e "$gl_libunistring_sed_extract_subminor"`
+  fi
+
+
+
+
+
+
+  GNULIB_ISBLANK=0;
+    HAVE_ISBLANK=1;
+
+
+
 
 
-    use_additional=yes
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
 
-    eval additional_includedir=\"$includedir\"
-    eval additional_libdir=\"$libdir\"
 
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if environ is properly declared" >&5
+$as_echo_n "checking if environ is properly declared... " >&6; }
+  if ${gt_cv_var_environ_declaration+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
 
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if HAVE_UNISTD_H
+     #include <unistd.h>
+     #endif
+     /* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>.  */
+     #include <stdlib.h>
 
-# Check whether --with-libpth-prefix was given.
-if test "${with_libpth_prefix+set}" = set; then :
-  withval=$with_libpth_prefix;
-    if test "X$withval" = "Xno"; then
-      use_additional=no
-    else
-      if test "X$withval" = "X"; then
+           extern struct { int foo; } environ;
+int
+main ()
+{
+environ.foo = 1;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gt_cv_var_environ_declaration=no
+else
+  gt_cv_var_environ_declaration=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_var_environ_declaration" >&5
+$as_echo "$gt_cv_var_environ_declaration" >&6; }
+  if test $gt_cv_var_environ_declaration = yes; then
 
-          eval additional_includedir=\"$includedir\"
-          eval additional_libdir=\"$libdir\"
+$as_echo "#define HAVE_ENVIRON_DECL 1" >>confdefs.h
 
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
+  fi
 
-      else
-        additional_includedir="$withval/include"
-        additional_libdir="$withval/$acl_libdirstem"
-        if test "$acl_libdirstem2" != "$acl_libdirstem" \
-           && ! test -d "$withval/$acl_libdirstem"; then
-          additional_libdir="$withval/$acl_libdirstem2"
-        fi
-      fi
-    fi
 
-fi
+  if test $gt_cv_var_environ_declaration != yes; then
+    HAVE_DECL_ENVIRON=0
+  fi
 
-      LIBPTH=
-  LTLIBPTH=
-  INCPTH=
-  LIBPTH_PREFIX=
-      HAVE_LIBPTH=
-  rpathdirs=
-  ltrpathdirs=
-  names_already_handled=
-  names_next_round='pth '
-  while test -n "$names_next_round"; do
-    names_this_round="$names_next_round"
-    names_next_round=
-    for name in $names_this_round; do
-      already_handled=
-      for n in $names_already_handled; do
-        if test "$n" = "$name"; then
-          already_handled=yes
-          break
-        fi
-      done
-      if test -z "$already_handled"; then
-        names_already_handled="$names_already_handled $name"
-                        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'`
-        eval value=\"\$HAVE_LIB$uppername\"
-        if test -n "$value"; then
-          if test "$value" = yes; then
-            eval value=\"\$LIB$uppername\"
-            test -z "$value" || LIBPTH="${LIBPTH}${LIBPTH:+ }$value"
-            eval value=\"\$LTLIB$uppername\"
-            test -z "$value" || LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }$value"
-          else
-                                    :
-          fi
-        else
-                              found_dir=
-          found_la=
-          found_so=
-          found_a=
-          eval libname=\"$acl_libname_spec\"    # typically: libname=lib$name
-          if test -n "$acl_shlibext"; then
-            shrext=".$acl_shlibext"             # typically: shrext=.so
-          else
-            shrext=
-          fi
-          if test $use_additional = yes; then
-            dir="$additional_libdir"
-                                    if test -n "$acl_shlibext"; then
-              if test -f "$dir/$libname$shrext"; then
-                found_dir="$dir"
-                found_so="$dir/$libname$shrext"
-              else
-                if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
-                  ver=`(cd "$dir" && \
-                        for f in "$libname$shrext".*; do echo "$f"; done \
-                        | sed -e "s,^$libname$shrext\\\\.,," \
-                        | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
-                        | sed 1q ) 2>/dev/null`
-                  if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
-                    found_dir="$dir"
-                    found_so="$dir/$libname$shrext.$ver"
-                  fi
-                else
-                  eval library_names=\"$acl_library_names_spec\"
-                  for f in $library_names; do
-                    if test -f "$dir/$f"; then
-                      found_dir="$dir"
-                      found_so="$dir/$f"
-                      break
-                    fi
-                  done
-                fi
-              fi
-            fi
-                        if test "X$found_dir" = "X"; then
-              if test -f "$dir/$libname.$acl_libext"; then
-                found_dir="$dir"
-                found_a="$dir/$libname.$acl_libext"
-              fi
-            fi
-            if test "X$found_dir" != "X"; then
-              if test -f "$dir/$libname.la"; then
-                found_la="$dir/$libname.la"
-              fi
-            fi
-          fi
-          if test "X$found_dir" = "X"; then
-            for x in $LDFLAGS $LTLIBPTH; do
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
 
-              case "$x" in
-                -L*)
-                  dir=`echo "X$x" | sed -e 's/^X-L//'`
-                                    if test -n "$acl_shlibext"; then
-                    if test -f "$dir/$libname$shrext"; then
-                      found_dir="$dir"
-                      found_so="$dir/$libname$shrext"
-                    else
-                      if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then
-                        ver=`(cd "$dir" && \
-                              for f in "$libname$shrext".*; do echo "$f"; done \
-                              | sed -e "s,^$libname$shrext\\\\.,," \
-                              | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \
-                              | sed 1q ) 2>/dev/null`
-                        if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then
-                          found_dir="$dir"
-                          found_so="$dir/$libname$shrext.$ver"
-                        fi
-                      else
-                        eval library_names=\"$acl_library_names_spec\"
-                        for f in $library_names; do
-                          if test -f "$dir/$f"; then
-                            found_dir="$dir"
-                            found_so="$dir/$f"
-                            break
-                          fi
-                        done
-                      fi
-                    fi
-                  fi
-                                    if test "X$found_dir" = "X"; then
-                    if test -f "$dir/$libname.$acl_libext"; then
-                      found_dir="$dir"
-                      found_a="$dir/$libname.$acl_libext"
-                    fi
-                  fi
-                  if test "X$found_dir" != "X"; then
-                    if test -f "$dir/$libname.la"; then
-                      found_la="$dir/$libname.la"
-                    fi
-                  fi
-                  ;;
-              esac
-              if test "X$found_dir" != "X"; then
-                break
-              fi
-            done
-          fi
-          if test "X$found_dir" != "X"; then
-                        LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-L$found_dir -l$name"
-            if test "X$found_so" != "X"; then
-                                                        if test "$enable_rpath" = no \
-                 || test "X$found_dir" = "X/usr/$acl_libdirstem" \
-                 || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then
-                                LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
-              else
-                                                                                haveit=
-                for x in $ltrpathdirs; do
-                  if test "X$x" = "X$found_dir"; then
-                    haveit=yes
-                    break
-                  fi
-                done
-                if test -z "$haveit"; then
-                  ltrpathdirs="$ltrpathdirs $found_dir"
-                fi
-                                if test "$acl_hardcode_direct" = yes; then
-                                                      LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
-                else
-                  if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then
-                                                            LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
-                                                            haveit=
-                    for x in $rpathdirs; do
-                      if test "X$x" = "X$found_dir"; then
-                        haveit=yes
-                        break
-                      fi
-                    done
-                    if test -z "$haveit"; then
-                      rpathdirs="$rpathdirs $found_dir"
-                    fi
-                  else
-                                                                                haveit=
-                    for x in $LDFLAGS $LIBPTH; do
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
 
-                      if test "X$x" = "X-L$found_dir"; then
-                        haveit=yes
-                        break
-                      fi
-                    done
-                    if test -z "$haveit"; then
-                      LIBPTH="${LIBPTH}${LIBPTH:+ }-L$found_dir"
-                    fi
-                    if test "$acl_hardcode_minus_L" != no; then
-                                                                                        LIBPTH="${LIBPTH}${LIBPTH:+ }$found_so"
-                    else
-                                                                                                                                                                                LIBPTH="${LIBPTH}${LIBPTH:+ }-l$name"
-                    fi
-                  fi
-                fi
-              fi
-            else
-              if test "X$found_a" != "X"; then
-                                LIBPTH="${LIBPTH}${LIBPTH:+ }$found_a"
-              else
-                                                LIBPTH="${LIBPTH}${LIBPTH:+ }-L$found_dir -l$name"
-              fi
-            fi
-                        additional_includedir=
-            case "$found_dir" in
-              */$acl_libdirstem | */$acl_libdirstem/)
-                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
-                if test "$name" = 'pth'; then
-                  LIBPTH_PREFIX="$basedir"
-                fi
-                additional_includedir="$basedir/include"
-                ;;
-              */$acl_libdirstem2 | */$acl_libdirstem2/)
-                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'`
-                if test "$name" = 'pth'; then
-                  LIBPTH_PREFIX="$basedir"
-                fi
-                additional_includedir="$basedir/include"
-                ;;
-            esac
-            if test "X$additional_includedir" != "X"; then
-                                                                                                                if test "X$additional_includedir" != "X/usr/include"; then
-                haveit=
-                if test "X$additional_includedir" = "X/usr/local/include"; then
-                  if test -n "$GCC"; then
-                    case $host_os in
-                      linux* | gnu* | k*bsd*-gnu) haveit=yes;;
-                    esac
-                  fi
-                fi
-                if test -z "$haveit"; then
-                  for x in $CPPFLAGS $INCPTH; do
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
 
-                    if test "X$x" = "X-I$additional_includedir"; then
-                      haveit=yes
-                      break
-                    fi
-                  done
-                  if test -z "$haveit"; then
-                    if test -d "$additional_includedir"; then
-                                            INCPTH="${INCPTH}${INCPTH:+ }-I$additional_includedir"
-                    fi
-                  fi
-                fi
-              fi
-            fi
-                        if test -n "$found_la"; then
-                                                        save_libdir="$libdir"
-              case "$found_la" in
-                */* | *\\*) . "$found_la" ;;
-                *) . "./$found_la" ;;
-              esac
-              libdir="$save_libdir"
-                            for dep in $dependency_libs; do
-                case "$dep" in
-                  -L*)
-                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
-                                                                                                                                                                if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \
-                       && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then
-                      haveit=
-                      if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \
-                         || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then
-                        if test -n "$GCC"; then
-                          case $host_os in
-                            linux* | gnu* | k*bsd*-gnu) haveit=yes;;
-                          esac
-                        fi
-                      fi
-                      if test -z "$haveit"; then
-                        haveit=
-                        for x in $LDFLAGS $LIBPTH; do
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ungetc works on arbitrary bytes" >&5
+$as_echo_n "checking whether ungetc works on arbitrary bytes... " >&6; }
+if ${gl_cv_func_ungetc_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+  case "$host_os" in
+                   # Guess yes on glibc and bionic systems.
+           *-gnu*|*-android*)
+                   gl_cv_func_ungetc_works="guessing yes" ;;
+                   # If we don't know, assume the worst.
+           *)      gl_cv_func_ungetc_works="guessing no" ;;
+         esac
 
-                          if test "X$x" = "X-L$additional_libdir"; then
-                            haveit=yes
-                            break
-                          fi
-                        done
-                        if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                                                        LIBPTH="${LIBPTH}${LIBPTH:+ }-L$additional_libdir"
-                          fi
-                        fi
-                        haveit=
-                        for x in $LDFLAGS $LTLIBPTH; do
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
+#include <stdio.h>
 
-                          if test "X$x" = "X-L$additional_libdir"; then
-                            haveit=yes
-                            break
-                          fi
-                        done
-                        if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                                                        LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-L$additional_libdir"
-                          fi
-                        fi
-                      fi
-                    fi
-                    ;;
-                  -R*)
-                    dir=`echo "X$dep" | sed -e 's/^X-R//'`
-                    if test "$enable_rpath" != no; then
-                                                                  haveit=
-                      for x in $rpathdirs; do
-                        if test "X$x" = "X$dir"; then
-                          haveit=yes
-                          break
-                        fi
-                      done
-                      if test -z "$haveit"; then
-                        rpathdirs="$rpathdirs $dir"
-                      fi
-                                                                  haveit=
-                      for x in $ltrpathdirs; do
-                        if test "X$x" = "X$dir"; then
-                          haveit=yes
-                          break
-                        fi
-                      done
-                      if test -z "$haveit"; then
-                        ltrpathdirs="$ltrpathdirs $dir"
-                      fi
-                    fi
-                    ;;
-                  -l*)
-                                        names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
-                    ;;
-                  *.la)
-                                                                                names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
-                    ;;
-                  *)
-                                        LIBPTH="${LIBPTH}${LIBPTH:+ }$dep"
-                    LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }$dep"
-                    ;;
-                esac
-              done
-            fi
-          else
-                                                            LIBPTH="${LIBPTH}${LIBPTH:+ }-l$name"
-            LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-l$name"
-          fi
-        fi
-      fi
-    done
-  done
-  if test "X$rpathdirs" != "X"; then
-    if test -n "$acl_hardcode_libdir_separator"; then
-                        alldirs=
-      for found_dir in $rpathdirs; do
-        alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir"
-      done
-            acl_save_libdir="$libdir"
-      libdir="$alldirs"
-      eval flag=\"$acl_hardcode_libdir_flag_spec\"
-      libdir="$acl_save_libdir"
-      LIBPTH="${LIBPTH}${LIBPTH:+ }$flag"
-    else
-            for found_dir in $rpathdirs; do
-        acl_save_libdir="$libdir"
-        libdir="$found_dir"
-        eval flag=\"$acl_hardcode_libdir_flag_spec\"
-        libdir="$acl_save_libdir"
-        LIBPTH="${LIBPTH}${LIBPTH:+ }$flag"
-      done
-    fi
-  fi
-  if test "X$ltrpathdirs" != "X"; then
-            for found_dir in $ltrpathdirs; do
-      LTLIBPTH="${LTLIBPTH}${LTLIBPTH:+ }-R$found_dir"
-    done
-  fi
+int
+main ()
+{
+FILE *f;
+           if (!(f = fopen ("conftest.tmp", "w+"))) return 1;
+           if (fputs ("abc", f) < 0) return 2;
+           rewind (f);
+           if (fgetc (f) != 'a') return 3;
+           if (fgetc (f) != 'b') return 4;
+           if (ungetc ('d', f) != 'd') return 5;
+           if (ftell (f) != 1) return 6;
+           if (fgetc (f) != 'd') return 7;
+           if (ftell (f) != 2) return 8;
+           if (fseek (f, 0, SEEK_CUR) != 0) return 9;
+           if (ftell (f) != 2) return 10;
+           if (fgetc (f) != 'c') return 11;
+           fclose (f); remove ("conftest.tmp");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_ungetc_works=yes
+else
+  gl_cv_func_ungetc_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_ungetc_works" >&5
+$as_echo "$gl_cv_func_ungetc_works" >&6; }
+  case "$gl_cv_func_ungetc_works" in
+    *yes) ;;
+    *)
 
+$as_echo "#define FUNC_UNGETC_BROKEN 1" >>confdefs.h
 
+      ;;
+  esac
 
 
-    ac_cv_libpth_libs="$LIBPTH"
-    ac_cv_libpth_ltlibs="$LTLIBPTH"
-    ac_cv_libpth_cppflags="$INCPTH"
-    ac_cv_libpth_prefix="$LIBPTH_PREFIX"
 
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_libpth_libs" >&5
-$as_echo "$ac_cv_libpth_libs" >&6; }
-  LIBPTH="$ac_cv_libpth_libs"
-  LTLIBPTH="$ac_cv_libpth_ltlibs"
-  INCPTH="$ac_cv_libpth_cppflags"
-  LIBPTH_PREFIX="$ac_cv_libpth_prefix"
 
-  for element in $INCPTH; do
-    haveit=
-    for x in $CPPFLAGS; do
+  GNULIB_IMAXABS=0;
+  GNULIB_IMAXDIV=0;
+  GNULIB_STRTOIMAX=0;
+  GNULIB_STRTOUMAX=0;
+    HAVE_DECL_IMAXABS=1;
+  HAVE_DECL_IMAXDIV=1;
+  HAVE_DECL_STRTOIMAX=1;
+  HAVE_DECL_STRTOUMAX=1;
+  REPLACE_STRTOIMAX=0;
+  REPLACE_STRTOUMAX=0;
+  INT32_MAX_LT_INTMAX_MAX=1;
+  INT64_MAX_EQ_LONG_MAX='defined _LP64';
+  PRI_MACROS_BROKEN=0;
+  PRIPTR_PREFIX=__PRIPTR_PREFIX;
+  UINT32_MAX_LT_UINTMAX_MAX=1;
+  UINT64_MAX_EQ_ULONG_MAX='defined _LP64';
 
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
 
-      if test "X$x" = "X$element"; then
-        haveit=yes
-        break
-      fi
-    done
-    if test -z "$haveit"; then
-      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
-    fi
-  done
 
 
 
 
-      HAVE_LIBPTH=yes
 
 
 
-      gl_have_pth=
-      gl_save_LIBS="$LIBS"
-      LIBS="$LIBS $LIBPTH"
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+
+
+
+
+     if test $gl_cv_have_include_next = yes; then
+       gl_cv_next_inttypes_h='<'inttypes.h'>'
+     else
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking absolute name of <inttypes.h>" >&5
+$as_echo_n "checking absolute name of <inttypes.h>... " >&6; }
+if ${gl_cv_next_inttypes_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+             if test $ac_cv_header_inttypes_h = yes; then
+
+
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <pth.h>
-int
-main ()
-{
-pth_self();
-  ;
-  return 0;
-}
+#include <inttypes.h>
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  gl_have_pth=yes
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-      LIBS="$gl_save_LIBS"
-      if test -n "$gl_have_pth"; then
-        gl_threads_api=pth
-        LIBTHREAD="$LIBPTH"
-        LTLIBTHREAD="$LTLIBPTH"
-        LIBMULTITHREAD="$LIBTHREAD"
-        LTLIBMULTITHREAD="$LTLIBTHREAD"
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-$as_echo "#define USE_PTH_THREADS 1" >>confdefs.h
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'inttypes.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
-        if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
-          if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
+        gl_cv_absolute_inttypes_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
-$as_echo "#define USE_PTH_THREADS_WEAK 1" >>confdefs.h
+           gl_header=$gl_cv_absolute_inttypes_h
+           gl_cv_next_inttypes_h='"'$gl_header'"'
+          else
+               gl_cv_next_inttypes_h='<'inttypes.h'>'
+             fi
 
-            LIBTHREAD=
-            LTLIBTHREAD=
-          fi
-        fi
-      else
-        CPPFLAGS="$gl_save_CPPFLAGS"
-      fi
-    fi
-    if test -z "$gl_have_pthread"; then
-      case "$gl_use_threads" in
-        yes | windows | win32) # The 'win32' is for backward compatibility.
-          if { case "$host_os" in
-                 mingw*) true;;
-                 *) false;;
-               esac
-             }; then
-            gl_threads_api=windows
 
-$as_echo "#define USE_WINDOWS_THREADS 1" >>confdefs.h
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_next_inttypes_h" >&5
+$as_echo "$gl_cv_next_inttypes_h" >&6; }
+     fi
+     NEXT_INTTYPES_H=$gl_cv_next_inttypes_h
 
-          fi
-          ;;
-      esac
-    fi
-  fi
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for multithread API to use" >&5
-$as_echo_n "checking for multithread API to use... " >&6; }
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_threads_api" >&5
-$as_echo "$gl_threads_api" >&6; }
+     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
+       gl_next_as_first_directive='<'inttypes.h'>'
+     else
+       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
+       gl_next_as_first_directive=$gl_cv_next_inttypes_h
+     fi
+     NEXT_AS_FIRST_DIRECTIVE_INTTYPES_H=$gl_next_as_first_directive
 
 
 
@@ -17623,66 +19316,213 @@ $as_echo "$gl_threads_api" >&6; }
 
 
 
+    for gl_func in imaxabs imaxdiv strtoimax strtoumax; do
+    as_gl_Symbol=`$as_echo "gl_cv_have_raw_decl_$gl_func" | $as_tr_sh`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $gl_func is declared without a macro" >&5
+$as_echo_n "checking whether $gl_func is declared without a macro... " >&6; }
+if eval \${$as_gl_Symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <inttypes.h>
+
+int
+main ()
+{
+#undef $gl_func
+  (void) $gl_func;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_gl_Symbol=yes"
+else
+  eval "$as_gl_Symbol=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$as_gl_Symbol
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+    if eval test \"x\$"$as_gl_Symbol"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_RAW_DECL_$gl_func" | $as_tr_cpp` 1
+_ACEOF
+
+                     eval ac_cv_have_decl_$gl_func=yes
+fi
+      done
+
 
 
-  for ac_header in stdlib.h
+  for ac_header in inttypes.h
 do :
-  ac_fn_c_check_header_mongrel "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdlib_h" = xyes; then :
+  ac_fn_c_check_header_mongrel "$LINENO" "inttypes.h" "ac_cv_header_inttypes_h" "$ac_includes_default"
+if test "x$ac_cv_header_inttypes_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
-#define HAVE_STDLIB_H 1
+#define HAVE_INTTYPES_H 1
 _ACEOF
 
 fi
 
 done
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible malloc" >&5
-$as_echo_n "checking for GNU libc compatible malloc... " >&6; }
-if ${ac_cv_func_malloc_0_nonnull+:} false; then :
+  if test $ac_cv_header_inttypes_h = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the inttypes.h PRIxNN macros are broken" >&5
+$as_echo_n "checking whether the inttypes.h PRIxNN macros are broken... " >&6; }
+if ${gt_cv_inttypes_pri_broken+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  if test "$cross_compiling" = yes; then :
-  ac_cv_func_malloc_0_nonnull=no
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#if defined STDC_HEADERS || defined HAVE_STDLIB_H
-# include <stdlib.h>
-#else
-char *malloc ();
+
+#include <inttypes.h>
+#ifdef PRId32
+char *p = PRId32;
 #endif
 
 int
 main ()
 {
-return ! malloc (0);
+
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  ac_cv_func_malloc_0_nonnull=yes
+if ac_fn_c_try_compile "$LINENO"; then :
+  gt_cv_inttypes_pri_broken=no
 else
-  ac_cv_func_malloc_0_nonnull=no
+  gt_cv_inttypes_pri_broken=yes
 fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_inttypes_pri_broken" >&5
+$as_echo "$gt_cv_inttypes_pri_broken" >&6; }
+  fi
+  if test "$gt_cv_inttypes_pri_broken" = yes; then
 
+cat >>confdefs.h <<_ACEOF
+#define PRI_MACROS_BROKEN 1
+_ACEOF
+
+    PRI_MACROS_BROKEN=1
+  else
+    PRI_MACROS_BROKEN=0
+  fi
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LC_MESSAGES" >&5
+$as_echo_n "checking for LC_MESSAGES... " >&6; }
+if ${gt_cv_val_LC_MESSAGES+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <locale.h>
+int
+main ()
+{
+return LC_MESSAGES
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gt_cv_val_LC_MESSAGES=yes
+else
+  gt_cv_val_LC_MESSAGES=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_malloc_0_nonnull" >&5
-$as_echo "$ac_cv_func_malloc_0_nonnull" >&6; }
-if test $ac_cv_func_malloc_0_nonnull = yes; then :
-  gl_cv_func_malloc_0_nonnull=1
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_val_LC_MESSAGES" >&5
+$as_echo "$gt_cv_val_LC_MESSAGES" >&6; }
+  if test $gt_cv_val_LC_MESSAGES = yes; then
+
+$as_echo "#define HAVE_LC_MESSAGES 1" >>confdefs.h
+
+  fi
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CFPreferencesCopyAppValue" >&5
+$as_echo_n "checking for CFPreferencesCopyAppValue... " >&6; }
+if ${gt_cv_func_CFPreferencesCopyAppValue+:} false; then :
+  $as_echo_n "(cached) " >&6
 else
-  gl_cv_func_malloc_0_nonnull=0
+  gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <CoreFoundation/CFPreferences.h>
+int
+main ()
+{
+CFPreferencesCopyAppValue(NULL, NULL)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gt_cv_func_CFPreferencesCopyAppValue=yes
+else
+  gt_cv_func_CFPreferencesCopyAppValue=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     LIBS="$gt_save_LIBS"
 fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_func_CFPreferencesCopyAppValue" >&5
+$as_echo "$gt_cv_func_CFPreferencesCopyAppValue" >&6; }
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
 
+$as_echo "#define HAVE_CFPREFERENCESCOPYAPPVALUE 1" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define MALLOC_0_IS_NONNULL $gl_cv_func_malloc_0_nonnull
+  fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CFLocaleCopyCurrent" >&5
+$as_echo_n "checking for CFLocaleCopyCurrent... " >&6; }
+if ${gt_cv_func_CFLocaleCopyCurrent+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <CoreFoundation/CFLocale.h>
+int
+main ()
+{
+CFLocaleCopyCurrent();
+  ;
+  return 0;
+}
 _ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gt_cv_func_CFLocaleCopyCurrent=yes
+else
+  gt_cv_func_CFLocaleCopyCurrent=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     LIBS="$gt_save_LIBS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gt_cv_func_CFLocaleCopyCurrent" >&5
+$as_echo "$gt_cv_func_CFLocaleCopyCurrent" >&6; }
+  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+
+$as_echo "#define HAVE_CFLOCALECOPYCURRENT 1" >>confdefs.h
+
+  fi
+  INTL_MACOSX_LIBS=
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+  fi
 
 
 ac_fn_c_check_decl "$LINENO" "setenv" "ac_cv_have_decl_setenv" "$ac_includes_default"
@@ -17734,6 +19574,8 @@ done
 
 
 
+
+
 ac_fn_c_check_decl "$LINENO" "snprintf" "ac_cv_have_decl_snprintf" "$ac_includes_default"
 if test "x$ac_cv_have_decl_snprintf" = xyes; then :
   ac_have_decl=1
@@ -17745,17 +19587,6 @@ cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_SNPRINTF $ac_have_decl
 _ACEOF
 
-ac_fn_c_check_decl "$LINENO" "alarm" "ac_cv_have_decl_alarm" "$ac_includes_default"
-if test "x$ac_cv_have_decl_alarm" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_ALARM $ac_have_decl
-_ACEOF
-
 ac_fn_c_check_decl "$LINENO" "unsetenv" "ac_cv_have_decl_unsetenv" "$ac_includes_default"
 if test "x$ac_cv_have_decl_unsetenv" = xyes; then :
   ac_have_decl=1
@@ -17772,6 +19603,8 @@ _ACEOF
 
 
 
+
+
    if false; then
   GL_COND_LIBTOOL_TRUE=
   GL_COND_LIBTOOL_FALSE='#'
@@ -17865,7 +19698,6 @@ fi
 
 
 
-
   if test $ac_cv_func_btowc = no; then
     HAVE_BTOWC=0
   else
@@ -17986,7 +19818,7 @@ $as_echo "$gl_cv_func_btowc_eof" >&6; }
     esac
   fi
 
-if test $HAVE_BTOWC = 0 || test $REPLACE_BTOWC = 1; then
+  if test $HAVE_BTOWC = 0 || test $REPLACE_BTOWC = 1; then
 
 
 
@@ -18000,7 +19832,7 @@ if test $HAVE_BTOWC = 0 || test $REPLACE
 
   :
 
-fi
+  fi
 
 
 
@@ -18017,15 +19849,73 @@ $as_echo "#define GNULIB_TEST_BTOWC 1" >
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_expect" >&5
+$as_echo_n "checking for __builtin_expect... " >&6; }
+if ${gl_cv___builtin_expect+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+         int
+         main (int argc, char **argv)
+         {
+           argc = __builtin_expect (argc, 100);
+           return argv[argc != 100][0];
+         }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_cv___builtin_expect=yes
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+             #include <builtins.h>
+             int
+             main (int argc, char **argv)
+             {
+               argc = __builtin_expect (argc, 100);
+               return argv[argc != 100][0];
+             }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_cv___builtin_expect="in <builtins.h>"
+else
+  gl_cv___builtin_expect=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv___builtin_expect" >&5
+$as_echo "$gl_cv___builtin_expect" >&6; }
+  if test "$gl_cv___builtin_expect" = yes; then
+    $as_echo "#define HAVE___BUILTIN_EXPECT 1" >>confdefs.h
+
+  elif test "$gl_cv___builtin_expect" = "in <builtins.h>"; then
+    $as_echo "#define HAVE___BUILTIN_EXPECT 2" >>confdefs.h
+
+  fi
+
+
+
 
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible calloc" >&5
+       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU libc compatible calloc" >&5
 $as_echo_n "checking for GNU libc compatible calloc... " >&6; }
 if ${ac_cv_func_calloc_0_nonnull+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  ac_cv_func_calloc_0_nonnull=no
+  case "$host_os" in
+                  # Guess yes on glibc systems.
+          *-gnu*) ac_cv_func_calloc_0_nonnull="guessing yes" ;;
+                  # If we don't know, assume the worst.
+          *)      ac_cv_func_calloc_0_nonnull="guessing no" ;;
+        esac
+
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -18034,10 +19924,14 @@ int
 main ()
 {
 int result = 0;
-            if (!calloc (0, 0))
+            char *p = calloc (0, 0);
+            if (!p)
               result |= 1;
-            if (calloc ((size_t) -1 / 8 + 1, 8))
+            free (p);
+            p = calloc ((size_t) -1 / 8 + 1, 8);
+            if (p)
               result |= 2;
+            free (p);
             return result;
 
   ;
@@ -18056,19 +19950,22 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_calloc_0_nonnull" >&5
 $as_echo "$ac_cv_func_calloc_0_nonnull" >&6; }
-  if test $ac_cv_func_calloc_0_nonnull = yes; then :
+  case "$ac_cv_func_calloc_0_nonnull" in
+    *yes)
 
 $as_echo "#define HAVE_CALLOC_GNU 1" >>confdefs.h
 
-else
-  $as_echo "#define HAVE_CALLOC_GNU 0" >>confdefs.h
+      ;;
+    *)
+      $as_echo "#define HAVE_CALLOC_GNU 0" >>confdefs.h
 
      REPLACE_CALLOC=1
 
-fi
+      ;;
+  esac
 
 
-if test $REPLACE_CALLOC = 1; then
+  if test $REPLACE_CALLOC = 1; then
 
 
 
@@ -18079,7 +19976,7 @@ if test $REPLACE_CALLOC = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS calloc.$ac_objext"
 
-fi
+  fi
 
 
 cat >>confdefs.h <<_ACEOF
@@ -18098,7 +19995,7 @@ $as_echo "#define HAVE_CALLOC_POSIX 1" >
     REPLACE_CALLOC=1
   fi
 
-if test $REPLACE_CALLOC = 1; then
+  if test $REPLACE_CALLOC = 1; then
 
 
 
@@ -18109,7 +20006,7 @@ if test $REPLACE_CALLOC = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS calloc.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -18186,7 +20083,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_have_arbitrary_file_name_length_limit" >&5
 $as_echo "$gl_cv_have_arbitrary_file_name_length_limit" >&6; }
 
-if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then
+  if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then
 
 
 
@@ -18197,11 +20094,8 @@ if test $gl_cv_have_arbitrary_file_name_
 
   gl_LIBOBJS="$gl_LIBOBJS chdir-long.$ac_objext"
 
-
-
-  :
-
-fi
+    :
+  fi
 
 
 $as_echo "#define GNULIB_TEST_CLOEXEC 1" >>confdefs.h
@@ -18260,7 +20154,7 @@ done
     fi
 
 
-if test $REPLACE_CLOSE = 1; then
+  if test $REPLACE_CLOSE = 1; then
 
 
 
@@ -18271,7 +20165,7 @@ if test $REPLACE_CLOSE = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS close.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -18328,8 +20222,12 @@ done
       fi
     fi
 
+    case $host_os,$HAVE_CLOSEDIR in
+    os2*,1)
+      REPLACE_CLOSEDIR=1;;
+  esac
 
-if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then
+  if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then
 
 
 
@@ -18340,7 +20238,7 @@ if test $HAVE_CLOSEDIR = 0 || test $REPL
 
   gl_LIBOBJS="$gl_LIBOBJS closedir.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -18392,17 +20290,27 @@ $as_echo "#define GNULIB_TEST_CLOSEDIR 1
     localedir='${datarootdir}/locale'
 
   fi
+    if test "x$runstatedir" = x; then
+    runstatedir='${localstatedir}/run'
+
+  fi
 
       pkglibexecdir='${libexecdir}/${PACKAGE}'
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for d_ino member in directory struct" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for d_ino member in directory struct" >&5
 $as_echo_n "checking for d_ino member in directory struct... " >&6; }
 if ${gl_cv_struct_dirent_d_ino+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  gl_cv_struct_dirent_d_ino=no
+  case "$host_os" in
+                           # Guess yes on glibc systems with Linux kernel.
+              linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;;
+                           # If we don't know, assume the worst.
+              *)           gl_cv_struct_dirent_d_ino="guessing no" ;;
+            esac
+
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -18421,10 +20329,11 @@ DIR *dp = opendir (".");
              e = readdir (dp);
              if (! e)
                return 2;
-             if (stat (e->d_name, &st) != 0)
+             if (lstat (e->d_name, &st) != 0)
                return 3;
              if (e->d_ino != st.st_ino)
                return 4;
+             closedir (dp);
              return 0;
 
   ;
@@ -18443,11 +20352,13 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_struct_dirent_d_ino" >&5
 $as_echo "$gl_cv_struct_dirent_d_ino" >&6; }
-   if test $gl_cv_struct_dirent_d_ino = yes; then
+   case "$gl_cv_struct_dirent_d_ino" in
+     *yes)
 
 $as_echo "#define D_INO_IN_DIRENT 1" >>confdefs.h
 
-   fi
+       ;;
+   esac
 
 
 
@@ -18474,36 +20385,40 @@ else
              if test $ac_cv_header_dirent_h = yes; then
 
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <dirent.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'dirent.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_dirent_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
-               gl_header_literal_regex=`echo 'dirent.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_dirent_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+           gl_header=$gl_cv_absolute_dirent_h
+           gl_cv_next_dirent_h='"'$gl_header'"'
           else
                gl_cv_next_dirent_h='<'dirent.h'>'
              fi
@@ -18634,15 +20549,19 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_dirfd_macro" >&5
 $as_echo "$gl_cv_func_dirfd_macro" >&6; }
 
-  # Use the replacement only if we have no function or macro with that name.
-  if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no; then
-    if test $ac_cv_have_decl_dirfd = yes; then
-      # If the system declares dirfd already, let's declare rpl_dirfd instead.
+  # Use the replacement if we have no function or macro with that name,
+  # or if OS/2 kLIBC whose dirfd() does not work.
+  # Replace only if the system declares dirfd already.
+  case $ac_cv_func_dirfd,$gl_cv_func_dirfd_macro,$host_os,$ac_cv_have_decl_dirfd in
+    no,no,*,yes | *,*,os2*,yes)
       REPLACE_DIRFD=1
-    fi
-  fi
 
-if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no; then
+$as_echo "#define REPLACE_DIRFD 1" >>confdefs.h
+;;
+  esac
+
+  if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no \
+     || test $REPLACE_DIRFD = 1; then
 
 
 
@@ -18702,7 +20621,7 @@ _ACEOF
   fi
 
 
-fi
+  fi
 
 
 
@@ -18789,22 +20708,64 @@ $as_echo "#define DOUBLE_SLASH_IS_DISTIN
       REPLACE_DUP=1
     fi
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether dup works" >&5
+$as_echo_n "checking whether dup works... " >&6; }
+if ${gl_cv_func_dup_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+  gl_cv_func_dup_works='guessing yes'
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <unistd.h>
+                         #include <fcntl.h>
+                         #include <errno.h>
+int
+main ()
+{
+/* On OS/2 kLIBC, dup does not work on a directory fd.  */
+           int fd = open (".", O_RDONLY);
+           return fd < 0 ? 1 : dup (fd) < 0 ? 2 : 0;
+
+  ;
+  return 0;
+}
 
-if test $REPLACE_DUP = 1; then
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_dup_works=yes
+else
+  gl_cv_func_dup_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_dup_works" >&5
+$as_echo "$gl_cv_func_dup_works" >&6; }
+  case "$gl_cv_func_dup_works" in
+    *yes) ;;
+    *)
+      REPLACE_DUP=1
+      ;;
+  esac
 
+  if test $REPLACE_DUP = 1; then
 
 
 
 
 
-  gl_LIBOBJS="$gl_LIBOBJS dup.$ac_objext"
 
 
 
+  gl_LIBOBJS="$gl_LIBOBJS dup.$ac_objext"
 
-fi
+    :
+  fi
 
 
 
@@ -18837,47 +20798,81 @@ else
   if test "$cross_compiling" = yes; then :
   case "$host_os" in
            mingw*) # on this platform, dup2 always returns 0 for success
-             gl_cv_func_dup2_works=no;;
+             gl_cv_func_dup2_works="guessing no" ;;
            cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0
-             gl_cv_func_dup2_works=no;;
-           linux*) # On linux between 2008-07-27 and 2009-05-11, dup2 of a
-                   # closed fd may yield -EBADF instead of -1 / errno=EBADF.
-             gl_cv_func_dup2_works=no;;
-           freebsd*) # on FreeBSD 6.1, dup2(1,1000000) gives EMFILE, not EBADF.
-             gl_cv_func_dup2_works=no;;
+             gl_cv_func_dup2_works="guessing no" ;;
+           aix* | freebsd*)
+                   # on AIX 7.1 and FreeBSD 6.1, dup2 (1,toobig) gives EMFILE,
+                   # not EBADF.
+             gl_cv_func_dup2_works="guessing no" ;;
            haiku*) # on Haiku alpha 2, dup2(1, 1) resets FD_CLOEXEC.
-             gl_cv_func_dup2_works=no;;
-           *) gl_cv_func_dup2_works=yes;;
+             gl_cv_func_dup2_works="guessing no" ;;
+           *-android*) # implemented using dup3(), which fails if oldfd == newfd
+             gl_cv_func_dup2_works="guessing no" ;;
+           os2*) # on OS/2 kLIBC, dup2() does not work on a directory fd.
+             gl_cv_func_dup2_works="guessing no" ;;
+           *) gl_cv_func_dup2_works="guessing yes" ;;
          esac
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-         #include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
+         #include <errno.h>
+             #include <fcntl.h>
+             #include <limits.h>
+             #include <sys/resource.h>
+             #include <unistd.h>
+             #ifndef RLIM_SAVED_CUR
+             # define RLIM_SAVED_CUR RLIM_INFINITY
+             #endif
+             #ifndef RLIM_SAVED_MAX
+             # define RLIM_SAVED_MAX RLIM_INFINITY
+             #endif
+
 int
 main ()
 {
 int result = 0;
-#ifdef FD_CLOEXEC
-            if (fcntl (1, F_SETFD, FD_CLOEXEC) == -1)
-              result |= 1;
-#endif
-            if (dup2 (1, 1) == 0)
-              result |= 2;
-#ifdef FD_CLOEXEC
-            if (fcntl (1, F_GETFD) != FD_CLOEXEC)
-              result |= 4;
-#endif
-            close (0);
-            if (dup2 (0, 0) != -1)
-              result |= 8;
-            /* Many gnulib modules require POSIX conformance of EBADF.  */
-            if (dup2 (2, 1000000) == -1 && errno != EBADF)
-              result |= 16;
-            return result;
+             int bad_fd = INT_MAX;
+             struct rlimit rlim;
+             if (getrlimit (RLIMIT_NOFILE, &rlim) == 0
+                 && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX
+                 && rlim.rlim_cur != RLIM_INFINITY
+                 && rlim.rlim_cur != RLIM_SAVED_MAX
+                 && rlim.rlim_cur != RLIM_SAVED_CUR)
+               bad_fd = rlim.rlim_cur;
+             #ifdef FD_CLOEXEC
+               if (fcntl (1, F_SETFD, FD_CLOEXEC) == -1)
+                 result |= 1;
+             #endif
+             if (dup2 (1, 1) != 1)
+               result |= 2;
+             #ifdef FD_CLOEXEC
+               if (fcntl (1, F_GETFD) != FD_CLOEXEC)
+                 result |= 4;
+             #endif
+             close (0);
+             if (dup2 (0, 0) != -1)
+               result |= 8;
+             /* Many gnulib modules require POSIX conformance of EBADF.  */
+             if (dup2 (2, bad_fd) == -1 && errno != EBADF)
+               result |= 16;
+             /* Flush out some cygwin core dumps.  */
+             if (dup2 (2, -1) != -1 || errno != EBADF)
+               result |= 32;
+             dup2 (2, 255);
+             dup2 (2, 256);
+             /* On OS/2 kLIBC, dup2() does not work on a directory fd.  */
+             {
+               int fd = open (".", O_RDONLY);
+               if (fd == -1)
+                 result |= 64;
+               else if (dup2 (fd, fd + 1) == -1)
+                 result |= 128;
 
+               close (fd);
+             }
+             return result;
   ;
   return 0;
 }
@@ -18896,9 +20891,23 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_dup2_works" >&5
 $as_echo "$gl_cv_func_dup2_works" >&6; }
-    if test "$gl_cv_func_dup2_works" = no; then
-      REPLACE_DUP2=1
-    fi
+    case "$gl_cv_func_dup2_works" in
+      *yes) ;;
+      *)
+        REPLACE_DUP2=1
+        for ac_func in setdtablesize
+do :
+  ac_fn_c_check_func "$LINENO" "setdtablesize" "ac_cv_func_setdtablesize"
+if test "x$ac_cv_func_setdtablesize" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SETDTABLESIZE 1
+_ACEOF
+
+fi
+done
+
+        ;;
+    esac
   fi
 
 
@@ -18915,7 +20924,7 @@ $as_echo "$gl_cv_func_dup2_works" >&6; }
     fi
 
 
-if test $HAVE_DUP2 = 0 || test $REPLACE_DUP2 = 1; then
+  if test $HAVE_DUP2 = 0 || test $REPLACE_DUP2 = 1; then
 
 
 
@@ -18927,7 +20936,7 @@ if test $HAVE_DUP2 = 0 || test $REPLACE_
   gl_LIBOBJS="$gl_LIBOBJS dup2.$ac_objext"
 
 
-fi
+  fi
 
 
 
@@ -18972,7 +20981,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_error_at_line" >&5
 $as_echo "$ac_cv_lib_error_at_line" >&6; }
 
-if test $ac_cv_lib_error_at_line = no; then
+  if test $ac_cv_lib_error_at_line = no; then
 
 
 
@@ -18985,10 +20994,9 @@ if test $ac_cv_lib_error_at_line = no; t
 
 
 
-
   :
 
-fi
+  fi
 
 
   XGETTEXT_EXTRA_OPTIONS="$XGETTEXT_EXTRA_OPTIONS --flag=error:3:c-format"
@@ -19002,6 +21010,7 @@ fi
 
 
 
+
   if test $ac_cv_have_decl_fchdir = no; then
     HAVE_DECL_FCHDIR=0
   fi
@@ -19028,7 +21037,13 @@ if ${gl_cv_func_open_directory_works+:}
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  gl_cv_func_open_directory_works="guessing no"
+  case "$host_os" in
+                   # Guess yes on glibc systems.
+           *-gnu*) gl_cv_func_open_directory_works="guessing yes" ;;
+                   # If we don't know, assume the worst.
+           *)      gl_cv_func_open_directory_works="guessing no" ;;
+         esac
+
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -19054,11 +21069,14 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_open_directory_works" >&5
 $as_echo "$gl_cv_func_open_directory_works" >&6; }
-    if test "$gl_cv_func_open_directory_works" != yes; then
+    case "$gl_cv_func_open_directory_works" in
+      *yes) ;;
+      *)
 
 $as_echo "#define REPLACE_OPEN_DIRECTORY 1" >>confdefs.h
 
-    fi
+        ;;
+    esac
   fi
 
 
@@ -19098,26 +21116,54 @@ if ${gl_cv_func_fcntl_f_dupfd_works+:} f
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  # Guess that it works on glibc systems
-          case $host_os in #((
-            *-gnu*) gl_cv_func_fcntl_f_dupfd_works="guessing yes";;
-            *)      gl_cv_func_fcntl_f_dupfd_works="guessing no";;
+  case $host_os in
+            aix* | cygwin* | haiku*)
+               gl_cv_func_fcntl_f_dupfd_works="guessing no" ;;
+            *) gl_cv_func_fcntl_f_dupfd_works="guessing yes" ;;
           esac
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-#include <fcntl.h>
 #include <errno.h>
+              #include <fcntl.h>
+              #include <limits.h>
+              #include <sys/resource.h>
+              #include <unistd.h>
+              #ifndef RLIM_SAVED_CUR
+              # define RLIM_SAVED_CUR RLIM_INFINITY
+              #endif
+              #ifndef RLIM_SAVED_MAX
+              # define RLIM_SAVED_MAX RLIM_INFINITY
+              #endif
 
 int
 main ()
 {
 int result = 0;
-      if (fcntl (0, F_DUPFD, -1) != -1) result |= 1;
-      if (errno != EINVAL) result |= 2;
-      return result;
+              int bad_fd = INT_MAX;
+              struct rlimit rlim;
+              if (getrlimit (RLIMIT_NOFILE, &rlim) == 0
+                  && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX
+                  && rlim.rlim_cur != RLIM_INFINITY
+                  && rlim.rlim_cur != RLIM_SAVED_MAX
+                  && rlim.rlim_cur != RLIM_SAVED_CUR)
+                bad_fd = rlim.rlim_cur;
+              if (fcntl (0, F_DUPFD, -1) != -1) result |= 1;
+              if (errno != EINVAL) result |= 2;
+              if (fcntl (0, F_DUPFD, bad_fd) != -1) result |= 4;
+              if (errno != EINVAL) result |= 8;
+              /* On OS/2 kLIBC, F_DUPFD does not work on a directory fd */
+              {
+                int fd;
+                fd = open (".", O_RDONLY);
+                if (fd == -1)
+                  result |= 16;
+                else if (fcntl (fd, F_DUPFD, STDERR_FILENO + 1) == -1)
+                  result |= 32;
 
+                close (fd);
+              }
+              return result;
   ;
   return 0;
 }
@@ -19235,7 +21281,7 @@ $as_echo "$gl_cv_func_fcntl_f_dupfd_cloe
     fi
 
 
-if test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1; then
+  if test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1; then
 
 
 
@@ -19246,7 +21292,7 @@ if test $HAVE_FCNTL = 0 || test $REPLACE
 
   gl_LIBOBJS="$gl_LIBOBJS fcntl.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -19282,36 +21328,40 @@ if ${gl_cv_next_fcntl_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <fcntl.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'fcntl.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
+
+        gl_cv_absolute_fcntl_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
 
-               gl_header_literal_regex=`echo 'fcntl.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_fcntl_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+           gl_header=$gl_cv_absolute_fcntl_h
+           gl_cv_next_fcntl_h='"'$gl_header'"'
 
 
 fi
@@ -19412,7 +21462,13 @@ if ${gl_cv_func_fdopendir_works+:} false
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
-  gl_cv_func_fdopendir_works="guessing no"
+  case "$host_os" in
+                    # Guess yes on glibc systems.
+            *-gnu*) gl_cv_func_fdopendir_works="guessing yes" ;;
+                    # If we don't know, assume the worst.
+            *)      gl_cv_func_fdopendir_works="guessing no" ;;
+          esac
+
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -19453,12 +21509,15 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_fdopendir_works" >&5
 $as_echo "$gl_cv_func_fdopendir_works" >&6; }
-    if test "$gl_cv_func_fdopendir_works" != yes; then
-      REPLACE_FDOPENDIR=1
-    fi
+    case "$gl_cv_func_fdopendir_works" in
+      *yes) ;;
+      *)
+        REPLACE_FDOPENDIR=1
+        ;;
+    esac
   fi
 
-if test $HAVE_FDOPENDIR = 0 || test $REPLACE_FDOPENDIR = 1; then
+  if test $HAVE_FDOPENDIR = 0 || test $REPLACE_FDOPENDIR = 1; then
 
 
 
@@ -19469,7 +21528,7 @@ if test $HAVE_FDOPENDIR = 0 || test $REP
 
   gl_LIBOBJS="$gl_LIBOBJS fdopendir.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -19503,7 +21562,7 @@ if ${gl_cv_func_fflush_stdin+:} false; t
 else
   echo hello world > conftest.txt
      if test "$cross_compiling" = yes; then :
-        gl_cv_func_fflush_stdin=no
+  gl_cv_func_fflush_stdin=cross
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -19572,12 +21631,22 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_fflush_stdin" >&5
 $as_echo "$gl_cv_func_fflush_stdin" >&6; }
+  case $gl_cv_func_fflush_stdin in
+    yes) gl_func_fflush_stdin=1 ;;
+    no)  gl_func_fflush_stdin=0 ;;
+    *)   gl_func_fflush_stdin='(-1)' ;;
+  esac
+
+cat >>confdefs.h <<_ACEOF
+#define FUNC_FFLUSH_STDIN $gl_func_fflush_stdin
+_ACEOF
 
-  if test $gl_cv_func_fflush_stdin = no; then
+
+  if test $gl_cv_func_fflush_stdin != yes; then
     REPLACE_FFLUSH=1
   fi
 
-if test $REPLACE_FFLUSH = 1; then
+  if test $REPLACE_FFLUSH = 1; then
 
 
 
@@ -19588,11 +21657,8 @@ if test $REPLACE_FFLUSH = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS fflush.$ac_objext"
 
-
-
-  :
-
-fi
+    :
+  fi
 
 
 cat >>confdefs.h <<_ACEOF
@@ -19619,6 +21685,50 @@ $as_echo "#define GNULIB_TEST_FFLUSH 1"
 
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for flexible array member" >&5
+$as_echo_n "checking for flexible array member... " >&6; }
+if ${ac_cv_c_flexmember+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+            #include <stdio.h>
+            #include <stddef.h>
+            struct s { int n; double d[]; };
+int
+main ()
+{
+int m = getchar ();
+            size_t nbytes = offsetof (struct s, d) + m * sizeof (double);
+            nbytes += sizeof (struct s) - 1;
+            nbytes -= nbytes % sizeof (struct s);
+            struct s *p = malloc (nbytes);
+            p->d[0] = 0.0;
+            return p->d != (double *) NULL;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_flexmember=yes
+else
+  ac_cv_c_flexmember=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_flexmember" >&5
+$as_echo "$ac_cv_c_flexmember" >&6; }
+  if test $ac_cv_c_flexmember = yes; then
+
+$as_echo "#define FLEXIBLE_ARRAY_MEMBER /**/" >>confdefs.h
+
+  else
+    $as_echo "#define FLEXIBLE_ARRAY_MEMBER 1" >>confdefs.h
+
+  fi
+
+
 
 
   FLOAT_H=
@@ -19748,36 +21858,40 @@ if ${gl_cv_next_float_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-               cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <float.h>
-
 _ACEOF
-                                                                                                                        case "$host_os" in
-                 aix*) gl_absname_cpp="$ac_cpp -C" ;;
-                 *)    gl_absname_cpp="$ac_cpp" ;;
-               esac
+                case "$host_os" in
+    aix*) gl_absname_cpp="$ac_cpp -C" ;;
+    *)    gl_absname_cpp="$ac_cpp" ;;
+  esac
 
-               case "$host_os" in
-                 mingw*)
-                                                                                                                                     gl_dirsep_regex='[/\\]'
-                   ;;
-                 *)
-                   gl_dirsep_regex='\/'
-                   ;;
-               esac
-                                             gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  case "$host_os" in
+    mingw*)
+                                          gl_dirsep_regex='[/\\]'
+      ;;
+    *)
+      gl_dirsep_regex='\/'
+      ;;
+  esac
+      gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
+  gl_header_literal_regex=`echo 'float.h' \
+                           | sed -e "$gl_make_literal_regex_sed"`
+  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
+      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
+      s|^/[^/]|//&|
+      p
+      q
+    }'
 
-               gl_header_literal_regex=`echo 'float.h' \
-                                        | sed -e "$gl_make_literal_regex_sed"`
-               gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-                   s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-                   s|^/[^/]|//&|
-                   p
-                   q
-                 }'
-                                                            gl_cv_next_float_h='"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
-                      sed -n "$gl_absolute_header_sed"`'"'
+        gl_cv_absolute_float_h=`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&5 |
+  sed -n "$gl_absolute_header_sed"`
+
+           gl_header=$gl_cv_absolute_float_h
+           gl_cv_next_float_h='"'$gl_header'"'
 
 
 fi
@@ -19810,7 +21924,7 @@ fi
 
 
 
-if test $REPLACE_FLOAT_LDBL = 1; then
+  if test $REPLACE_FLOAT_LDBL = 1; then
 
 
 
@@ -19821,8 +21935,8 @@ if test $REPLACE_FLOAT_LDBL = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS float.$ac_objext"
 
-fi
-if test $REPLACE_ITOLD = 1; then
+  fi
+  if test $REPLACE_ITOLD = 1; then
 
 
 
@@ -19833,7 +21947,7 @@ if test $REPLACE_ITOLD = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS itold.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -19841,7 +21955,7 @@ fi
 
   FNMATCH_H=
   gl_fnmatch_required_lowercase=`
-    echo $gl_fnmatch_required | tr '[A-Z]' '[a-z]'
+    echo $gl_fnmatch_required | LC_ALL=C tr '[A-Z]' '[a-z]'
   `
   gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}"
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working $gl_fnmatch_required fnmatch" >&5
@@ -19975,7 +22089,7 @@ else
 fi
 
 
-if test -n "$FNMATCH_H"; then
+  if test -n "$FNMATCH_H"; then
 
 
 
@@ -20008,13 +22122,13 @@ _ACEOF
 
 
 
-fi
+  fi
 
 
 
 
 
-if test -n "$FNMATCH_H"; then
+  if test -n "$FNMATCH_H"; then
 
 
 
@@ -20047,7 +22161,7 @@ _ACEOF
 
 
 
-fi
+  fi
 
 
 
@@ -20108,7 +22222,7 @@ $as_echo "#define FOPEN_TRAILING_SLASH_B
       ;;
   esac
 
-if test $REPLACE_FOPEN = 1; then
+  if test $REPLACE_FOPEN = 1; then
 
 
 
@@ -20119,10 +22233,8 @@ if test $REPLACE_FOPEN = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS fopen.$ac_objext"
 
-
-
-
-fi
+    :
+  fi
 
 
 
@@ -20140,14 +22252,42 @@ $as_echo "#define GNULIB_TEST_FOPEN 1" >
 
 
 
-
   fp_headers='
-#     include <stdio.h>
-#     if HAVE_STDIO_EXT_H
-#      include <stdio_ext.h>
-#     endif
-'
-  ac_fn_c_check_decl "$LINENO" "__fpending" "ac_cv_have_decl___fpending" "$fp_headers
+    #include <stdio.h>
+    #if HAVE_STDIO_EXT_H
+    # include <stdio_ext.h>
+    #endif
+  '
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __fpending" >&5
+$as_echo_n "checking for __fpending... " >&6; }
+if ${gl_cv_func___fpending+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$fp_headers
+int
+main ()
+{
+return ! __fpending (stdin);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  gl_cv_func___fpending=yes
+else
+  gl_cv_func___fpending=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func___fpending" >&5
+$as_echo "$gl_cv_func___fpending" >&6; }
+  if test $gl_cv_func___fpending = yes; then
+    ac_fn_c_check_decl "$LINENO" "__fpending" "ac_cv_have_decl___fpending" "$fp_headers
 "
 if test "x$ac_cv_have_decl___fpending" = xyes; then :
   ac_have_decl=1
@@ -20159,8 +22299,9 @@ cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL___FPENDING $ac_have_decl
 _ACEOF
 
+  fi
 
-if test $ac_cv_func___fpending = no; then
+  if test $gl_cv_func___fpending = no; then
 
 
 
@@ -20171,84 +22312,7 @@ if test $ac_cv_func___fpending = no; the
 
   gl_LIBOBJS="$gl_LIBOBJS fpending.$ac_objext"
 
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to determine the number of pending output bytes on a stream" >&5
-$as_echo_n "checking how to determine the number of pending output bytes on a stream... " >&6; }
-if ${ac_cv_sys_pending_output_n_bytes+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-
-      for ac_expr in                                                    \
-                                                                        \
-          '# glibc2'                                                    \
-          'fp->_IO_write_ptr - fp->_IO_write_base'                      \
-                                                                        \
-          '# traditional Unix'                                          \
-          'fp->_ptr - fp->_base'                                        \
-                                                                        \
-          '# BSD'                                                       \
-          'fp->_p - fp->_bf._base'                                      \
-                                                                        \
-          '# SCO, Unixware'                                             \
-          '(fp->__ptr ? fp->__ptr - fp->__base : 0)'                    \
-                                                                        \
-          '# QNX'                                                       \
-          '(fp->_Mode & 0x2000 /*_MWRITE*/ ? fp->_Next - fp->_Buf : 0)' \
-                                                                        \
-          '# old glibc?'                                                \
-          'fp->__bufp - fp->__buffer'                                   \
-                                                                        \
-          '# old glibc iostream?'                                       \
-          'fp->_pptr - fp->_pbase'                                      \
-                                                                        \
-          '# emx+gcc'                                                   \
-          'fp->_ptr - fp->_buffer'                                      \
-                                                                        \
-          '# Minix'                                                     \
-          'fp->_ptr - fp->_buf'                                         \
-                                                                        \
-          '# VMS'                                                       \
-          '(*fp)->_ptr - (*fp)->_base'                                  \
-                                                                        \
-          '# e.g., DGUX R4.11; the info is not available'               \
-          1                                                             \
-          ; do
-
-        # Skip each embedded comment.
-        case "$ac_expr" in '#'*) continue;; esac
-
-        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdio.h>
-int
-main ()
-{
-FILE *fp = stdin; (void) ($ac_expr);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  fp_done=yes
-
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-        test "$fp_done" = yes && break
-      done
-
-      ac_cv_sys_pending_output_n_bytes=$ac_expr
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_pending_output_n_bytes" >&5
-$as_echo "$ac_cv_sys_pending_output_n_bytes" >&6; }
-
-cat >>confdefs.h <<_ACEOF
-#define PENDING_OUTPUT_N_BYTES $ac_cv_sys_pending_output_n_bytes
-_ACEOF
-
-
-fi
+  fi
 
 
 
@@ -20659,7 +22723,7 @@ $as_echo "$gl_cv_func_fpurge_works" >&6;
     HAVE_DECL_FPURGE=0
   fi
 
-if test $HAVE_FPURGE = 0 || test $REPLACE_FPURGE = 1; then
+  if test $HAVE_FPURGE = 0 || test $REPLACE_FPURGE = 1; then
 
 
 
@@ -20670,7 +22734,7 @@ if test $HAVE_FPURGE = 0 || test $REPLAC
 
   gl_LIBOBJS="$gl_LIBOBJS fpurge.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -20693,26 +22757,67 @@ $as_echo "#define GNULIB_TEST_FPURGE 1"
 
 
   case "$host_os" in
-    mingw* | pw*)
+    mingw* | pw* | os2*)
       REPLACE_FREOPEN=1
       ;;
-  esac
-
-if test $REPLACE_FREOPEN = 1; then
+    *)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether freopen works on closed fds" >&5
+$as_echo_n "checking whether freopen works on closed fds... " >&6; }
+if ${gl_cv_func_freopen_works_on_closed+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+  case $host_os in
+              *gnu*) gl_cv_func_freopen_works_on_closed="guessing no" ;;
+              *)     gl_cv_func_freopen_works_on_closed="guessing yes";;
+            esac
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+                #include <unistd.h>
 
+int
+main ()
+{
+close (0);
+                return !(freopen ("/dev/null", "r", stdin)
+                         && getchar () == EOF
+                         && !ferror (stdin) && feof (stdin));
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_freopen_works_on_closed=yes
+else
+  gl_cv_func_freopen_works_on_closed=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
 
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_freopen_works_on_closed" >&5
+$as_echo "$gl_cv_func_freopen_works_on_closed" >&6; }
+      case $gl_cv_func_freopen_works_on_closed in
+        *no) REPLACE_FREOPEN=1;;
+      esac
+  esac
 
+  if test $REPLACE_FREOPEN = 1; then
 
 
 
 
 
-  gl_LIBOBJS="$gl_LIBOBJS freopen.$ac_objext"
 
 
 
+  gl_LIBOBJS="$gl_LIBOBJS freopen.$ac_objext"
 
-fi
+    :
+  fi
 
 
 
@@ -20754,13 +22859,14 @@ else
 #include <float.h>
 #include <math.h>
 #include <string.h>
-#if HAVE_ALARM
+#if HAVE_DECL_ALARM
+# include <signal.h>
 # include <unistd.h>
 #endif
 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
    ICC 10.0 has a bug when optimizing the expression -zero.
    The expression -DBL_MIN * DBL_MIN does not work when cross-compiling
-   to PowerPC on MacOS X 10.5.  */
+   to PowerPC on Mac OS X 10.5.  */
 #if defined __hpux || defined __sgi || defined __ICC
 static double
 compute_minus_zero (void)
@@ -20777,9 +22883,10 @@ int main()
   int i;
   volatile double x;
   double zero = 0.0;
-#if HAVE_ALARM
+#if HAVE_DECL_ALARM
   /* NeXTstep 3.3 frexp() runs into an endless loop when called on an infinite
      number.  Let the test fail in this case.  */
+  signal (SIGALRM, SIG_DFL);
   alarm (5);
 #endif
   /* Test on denormalized numbers.  */
@@ -20841,7 +22948,7 @@ $as_echo "#define HAVE_FREXP_IN_LIBC 1"
 
   fi
 
-if test $gl_func_frexp_no_libm != yes; then
+  if test $gl_func_frexp_no_libm != yes; then
 
 
 
@@ -20852,7 +22959,7 @@ if test $gl_func_frexp_no_libm != yes; t
 
   gl_LIBOBJS="$gl_LIBOBJS frexp.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -20970,7 +23077,7 @@ int main()
     if (exp != 5)
       result |= 1;
   }
-  /* Test on finite numbers that fails on MacOS X 10.4, because its frexpl
+  /* Test on finite numbers that fails on Mac OS X 10.4, because its frexpl
      function returns an invalid (incorrectly normalized) value: it returns
                y = { 0x3fe028f5, 0xc28f5c28, 0x3c9eb851, 0xeb851eb8 }
      but the correct result is
@@ -21009,7 +23116,7 @@ int main()
         int exp;
         long double y = frexpl (x, &exp);
         /* On machines with IEEE854 arithmetic: x = 1.68105e-4932,
-           exp = -16382, y = 0.5.  On MacOS X 10.5: exp = -16384, y = 0.5.  */
+           exp = -16382, y = 0.5.  On Mac OS X 10.5: exp = -16384, y = 0.5.  */
         if (exp != LDBL_MIN_EXP - 1)
           result |= 8;
       }
@@ -21054,7 +23161,7 @@ $as_echo "#define HAVE_FREXPL_IN_LIBC 1"
     fi
   fi
 
-if test $HAVE_DECL_FREXPL = 0 || test $gl_func_frexpl_no_libm = no; then
+  if test $HAVE_DECL_FREXPL = 0 || test $gl_func_frexpl_no_libm = no; then
 
 
 
@@ -21065,7 +23172,7 @@ if test $HAVE_DECL_FREXPL = 0 || test $g
 
   gl_LIBOBJS="$gl_LIBOBJS frexpl.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -21088,7 +23195,7 @@ $as_echo "#define GNULIB_TEST_FREXPL 1"
     REPLACE_FSEEK=1
   fi
 
-if test $REPLACE_FSEEK = 1; then
+  if test $REPLACE_FSEEK = 1; then
 
 
 
@@ -21099,7 +23206,7 @@ if test $REPLACE_FSEEK = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS fseek.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -21122,6 +23229,7 @@ $as_echo "#define GNULIB_TEST_FSEEK 1" >
 
 
 
+
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fseeko" >&5
 $as_echo_n "checking for fseeko... " >&6; }
 if ${gl_cv_func_fseeko+:} false; then :
@@ -21160,6 +23268,9 @@ $as_echo "$gl_cv_func_fseeko" >&6; }
   if test $gl_cv_func_fseeko = no; then
     HAVE_FSEEKO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FSEEKO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FSEEKO=1
     fi
@@ -21173,7 +23284,7 @@ if ${gl_cv_func_fflush_stdin+:} false; t
 else
   echo hello world > conftest.txt
      if test "$cross_compiling" = yes; then :
-        gl_cv_func_fflush_stdin=no
+  gl_cv_func_fflush_stdin=cross
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -21242,14 +23353,24 @@ fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_fflush_stdin" >&5
 $as_echo "$gl_cv_func_fflush_stdin" >&6; }
+  case $gl_cv_func_fflush_stdin in
+    yes) gl_func_fflush_stdin=1 ;;
+    no)  gl_func_fflush_stdin=0 ;;
+    *)   gl_func_fflush_stdin='(-1)' ;;
+  esac
+
+cat >>confdefs.h <<_ACEOF
+#define FUNC_FFLUSH_STDIN $gl_func_fflush_stdin
+_ACEOF
+
 
-      if test $gl_cv_func_fflush_stdin = no; then
+      if test $gl_cv_func_fflush_stdin != yes; then
         REPLACE_FSEEKO=1
       fi
 
   fi
 
-if test $HAVE_FSEEKO = 0 || test $REPLACE_FSEEKO = 1; then
+  if test $HAVE_FSEEKO = 0 || test $REPLACE_FSEEKO = 1; then
 
 
 
@@ -21260,7 +23381,20 @@ if test $HAVE_FSEEKO = 0 || test $REPLAC
 
   gl_LIBOBJS="$gl_LIBOBJS fseeko.$ac_objext"
 
+
+      for ac_func in _fseeki64
+do :
+  ac_fn_c_check_func "$LINENO" "_fseeki64" "ac_cv_func__fseeki64"
+if test "x$ac_cv_func__fseeki64" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FSEEKI64 1
+_ACEOF
+
 fi
+done
+
+
+  fi
 
 
 
@@ -21279,24 +23413,50 @@ $as_echo "#define GNULIB_TEST_FSEEKO 1"
 
 
 
+  if test $ac_cv_func___fseterr = no; then
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS fseterr.$ac_objext"
+
+  fi
+
+
+
+
   if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
     REPLACE_FSTAT=1
   fi
 
 
+  if test $WINDOWS_64_BIT_ST_SIZE = 1; then
+    REPLACE_FSTAT=1
+  fi
+
+
+
 
 
   if test $ac_cv_func_fchdir = no; then
     HAVE_FCHDIR=0
   fi
 
-    if test $HAVE_FCHDIR = 0 \
-       && test "$gl_cv_func_open_directory_works" != yes; then
-      REPLACE_FSTAT=1
+    if test $HAVE_FCHDIR = 0; then
+      case "$gl_cv_func_open_directory_works" in
+        *yes) ;;
+        *)
+          REPLACE_FSTAT=1
+          ;;
+      esac
     fi
 
 
-if test $REPLACE_FSTAT = 1; then
+  if test $REPLACE_FSTAT = 1; then
 
 
 
@@ -21307,10 +23467,8 @@ if test $REPLACE_FSTAT = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS fstat.$ac_objext"
 
-
-
-
-fi
+    :
+  fi
 
 
 
@@ -21375,7 +23533,7 @@ fi
 $as_echo "$gl_cv_func_fstatat_zero_flag" >&6; }
 
     case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in
-    *yes+yes) ;;
+    *yes+*yes) ;;
     *) REPLACE_FSTATAT=1
        case $gl_cv_func_fstatat_zero_flag in
        *yes)
@@ -21388,7 +23546,7 @@ $as_echo "#define HAVE_WORKING_FSTATAT_Z
     esac
   fi
 
-if test $HAVE_FSTATAT = 0 || test $REPLACE_FSTATAT = 1; then
+  if test $HAVE_FSTATAT = 0 || test $REPLACE_FSTATAT = 1; then
 
 
 
@@ -21399,13 +23557,7 @@ if test $HAVE_FSTATAT = 0 || test $REPLA
 
   gl_LIBOBJS="$gl_LIBOBJS fstatat.$ac_objext"
 
-fi
-
-
-cat >>confdefs.h <<_ACEOF
-#define GNULIB_FSTATAT 1
-_ACEOF
-
+  fi
 
 
 
@@ -21428,7 +23580,7 @@ $as_echo "#define GNULIB_TEST_FSTATAT 1"
     REPLACE_FTELL=1
   fi
 
-if test $REPLACE_FTELL = 1; then
+  if test $REPLACE_FTELL = 1; then
 
 
 
@@ -21439,7 +23591,7 @@ if test $REPLACE_FTELL = 1; then
 
   gl_LIBOBJS="$gl_LIBOBJS ftell.$ac_objext"
 
-fi
+  fi
 
 
 
@@ -21463,6 +23615,7 @@ $as_echo "#define GNULIB_TEST_FTELL 1" >
 
 
 
+
   if test $ac_cv_have_decl_ftello = no; then
     HAVE_DECL_FTELLO=0
   fi
@@ -21498,9 +23651,13 @@ $as_echo "$gl_cv_func_ftello" >&6; }
   if test $gl_cv_func_ftello = no; then
     HAVE_FTELLO=0
   else
+    if test $WINDOWS_64_BIT_OFF_T = 1; then
+      REPLACE_FTELLO=1
+    fi
     if test $gl_cv_var_stdin_large_offset = no; then
       REPLACE_FTELLO=1
-    else
+    fi
+    if test $REPLACE_FTELLO = 0; then
 
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ftello works" >&5
 $as_echo_n "checking whether ftello works... " >&6; }
@@ -21603,7 +23760,7 @@ $as_echo "#define FTELLO_BROKEN_AFTER_SW
     fi
   fi
 
-if test $HAVE_FTELLO = 0 || test $REPLACE_FTELLO = 1; then
+  if test $HAVE_FTELLO = 0 || test $REPLACE_FTELLO = 1; then
 
 
 
@@ -21614,7 +23771,20 @@ if test $HAVE_FTELLO = 0 || test $REPLAC
 
   gl_LIBOBJS="$gl_LIBOBJS ftello.$ac_objext"
 
+
+      for ac_func in _ftelli64
+do :
+  ac_fn_c_check_func "$LINENO" "_ftelli64" "ac_cv_func__ftelli64"
+if test "x$ac_cv_func__ftelli64" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE__FTELLI64 1
+_ACEOF
+
 fi
+done
+
+
+  fi
 
 
 
@@ -21706,6 +23876,9 @@ else
 # define is_ENAMETOOLONG(x) 0
 #endif
 
+/* Use the getcwd function, not any macro.  */
+#undef getcwd
+
 /* Don't get link errors because mkdir is redefined to rpl_mkdir.  */
 #undef mkdir
 
@@ -21773,6 +23946,8 @@ main ()
 
       if (PATH_MAX <= cwd_len && cwd_len < PATH_MAX + DIR_NAME_SIZE)
         {
+          struct stat sb;
+
           c = getcwd (buf, PATH_MAX);
           if (!c && errno == ENOENT)
             {
@@ -21789,6 +23964,16 @@ main ()
               fail = 21;
               break;
             }
+
+          /* Our replacement needs to be able to stat() long ../../paths,
+             so generate a path larger than PATH_MAX to check,
+             avoiding the replacement if we can't stat().  */
+          c = getcwd (buf, cwd_len + 1);
+          if (c && !AT_FDCWD && stat (c, &sb) != 0 && is_ENAMETOOLONG (errno))
+            {
+              fail = 32;
+              break;
+            }
         }
 
       if (dotdot_max <= cwd_len - initial_cwd_len)
@@ -21848,6 +24033,7 @@ else
   case $? in
      10|11|12) gl_cv_func_getcwd_path_max='no, but it is partly working';;
      31) gl_cv_func_getcwd_path_max='no, it has the AIX bug';;
+     32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';;
      *) gl_cv_func_getcwd_path_max=no;;
      esac
 fi
@@ -21892,6 +24078,7 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+#include <errno.h>
 #include <stdlib.h>
 #if HAVE_UNISTD_H
 # include <unistd.h>
@@ -21943,16 +24130,18 @@ else
 int
 main ()
 {
-  char const *dir_name = "confdir-14B---";
   char *cwd;
   size_t initial_cwd_len;
   int fail = 0;
-  size_t desired_depth;
-  size_t d;
 
   /* The bug is triggered when PATH_MAX < getpagesize (), so skip
      this relatively expensive and invasive test if that's not true.  */
-  if (getpagesize () <= PATH_MAX)
+#ifdef PATH_MAX
+  int bug_possible = PATH_MAX < getpagesize ();
+#else
+  int bug_possible = 0;
+#endif
+  if (! bug_possible)
     return 0;
 
   cwd = getcwd (NULL, 0);
@@ -21961,35 +24150,43 @@ main ()
 
   initial_cwd_len = strlen (cwd);
   free (cwd);
-  desired_depth = ((TARGET_LEN - 1 - initial_cwd_len)
-                   / (1 + strlen (dir_name)));
-  for (d = 0; d < desired_depth; d++)
+
+  if (1)
     {
-      if (mkdir (dir_name, S_IRWXU) < 0 || chdir (dir_name) < 0)
+      static char const dir_name[] = "confdir-14B---";
+      size_t desired_depth = ((TARGET_LEN - 1 - initial_cwd_len)
+                              / sizeof dir_name);
+      size_t d;
+      for (d = 0; d < desired_depth; d++)
         {
-          fail = 3; /* Unable to construct deep hierarchy.  */
-          break;
+          if (mkdir (dir_name, S_IRWXU) < 0 || chdir (dir_name) < 0)
+            {
+              if (! (errno == ERANGE || errno == ENAMETOOLONG
+                     || errno == ENOENT))
+                fail = 3; /* Unable to construct deep hierarchy.  */
+              break;
+            }
         }
-    }
 
-  /* If libc has the bug in question, this invocation of getcwd
-     results in a failed assertion.  */
-  cwd = getcwd (NULL, 0);
-  if (cwd == NULL)
-    fail = 4; /* getcwd failed: it refuses to return a string longer
-                 than PATH_MAX.  */
-  free (cwd);
+      /* If libc has the bug in question, this invocation of getcwd
+         results in a failed assertion.  */
+      cwd = getcwd (NULL, 0);
+      if (cwd == NULL)
+        fail = 4; /* getcwd didn't assert, but it failed for a long name
+                     where the answer could have been learned.  */
+      free (cwd);
 
-  /* Call rmdir first, in case the above chdir failed.  */
-  rmdir (dir_name);
-  while (0 < d--)
-    {
-      if (chdir ("..") < 0)
+      /* Call rmdir first, in case the above chdir failed.  */
+      rmdir (dir_name);
+      while (0 < d--)
         {
-          fail = 5;
-          break;
+          if (chdir ("..") < 0)
+            {
+              fail = 5;
+              break;
+            }
+          rmdir (dir_name);
         }
-      rmdir (dir_name);
     }
 
   return fail;
@@ -22023,7 +24220,7 @@ fi
       ;;
   esac
       case "$gl_cv_func_getcwd_path_max" in
-    "no, it has the AIX bug") ;;
+    "no"|"no, it has the AIX bug") ;;
     *)
 
 $as_echo "#define HAVE_MINIMALLY_WORKING_GETCWD 1" >>confdefs.h
@@ -22036,16 +24233,21 @@ $as_echo "#define HA