diff -pruN 3.1.dfsg-11/debian/changelog 3.1.dfsg-11ubuntu1/debian/changelog
--- 3.1.dfsg-11/debian/changelog	2011-04-08 01:20:50.000000000 +0000
+++ 3.1.dfsg-11ubuntu1/debian/changelog	2012-01-02 08:16:50.000000000 +0000
@@ -1,3 +1,9 @@
+petsc (3.1.dfsg-11ubuntu1) precise; urgency=low
+
+  * Build for armhf as well.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 02 Jan 2012 09:16:33 +0100
+
 petsc (3.1.dfsg-11) unstable; urgency=low
 
   [ Adam C. Powell, IV ]
diff -pruN 3.1.dfsg-11/debian/control 3.1.dfsg-11ubuntu1/debian/control
--- 3.1.dfsg-11/debian/control	2011-04-08 01:18:58.000000000 +0000
+++ 3.1.dfsg-11ubuntu1/debian/control	2012-01-02 08:16:16.000000000 +0000
@@ -18,7 +18,7 @@ Vcs-Browser: http://git.debian.org/?p=de
 Homepage: http://www.mcs.anl.gov/petsc
 
 Package: libpetsc3.1-dev
-Architecture: alpha amd64 arm armel i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
+Architecture: alpha amd64 arm armel armhf i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
 Section: libdevel
 Depends: libpetsc3.1 (= ${binary:Version}), ${mpi-dev}, ${linear-algebra-dev}, ${petsc-compilers}, ${petsc-extra-dev}, libx11-dev, libsuitesparse-dev, libsuperlu3-dev, libspooles-dev, libhypre-dev (>= 2.0.0.dfsg-7), libscotch-dev, ${babel-dev}, ${misc:Depends}, ${hdf5-dev}, libblacs-mpi-dev, libscalapack-mpi-dev, libmumps-dev
 Suggests: petsc-dev (= ${binary:Version}), libpetsc3.1-dbg (= ${binary:Version}), petsc3.1-doc (= ${binary:Version}), libluminate-dev
@@ -41,7 +41,7 @@ Description: Meta-package depending on l
  (X=version), so if you install it then you will get upgrades automatically.
 
 Package: libpetsc3.1
-Architecture: alpha amd64 arm armel i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
+Architecture: alpha amd64 arm armel armhf i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
 Section: libs
 Depends: ${shlibs:Depends}, ${mpi}, ${misc:Depends}
 Description: Shared libraries for version 3.1 of PETSc
@@ -53,7 +53,7 @@ Description: Shared libraries for versio
  features of the PETSc libraries.
 
 Package: libpetsc3.1-dbg
-Architecture: alpha amd64 arm armel i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
+Architecture: alpha amd64 arm armel armhf i386 ia64 mips mipsel powerpc ppc64 s390 sparc kfreebsd-i386 kfreebsd-amd64 hurd-i386
 Section: debug
 Depends: libpetsc3.1-dev (= ${binary:Version}), ${misc:Depends}
 Suggests: petsc-dbg (= ${binary:Version})