diff -pruN 1.4.0~rc1+git867-g9ef681b0e+dfsg-1/debian/changelog 1.4.0~rc1+git867-g9ef681b0e+dfsg-1ubuntu1/debian/changelog
--- 1.4.0~rc1+git867-g9ef681b0e+dfsg-1/debian/changelog	2022-12-17 15:03:09.000000000 +0000
+++ 1.4.0~rc1+git867-g9ef681b0e+dfsg-1ubuntu1/debian/changelog	2023-01-07 13:00:48.000000000 +0000
@@ -1,3 +1,9 @@
+clementine (1.4.0~rc1+git867-g9ef681b0e+dfsg-1ubuntu1) lunar; urgency=medium
+
+  * Lower optimization level on ppc64el to fix build failure
+
+ -- Gianfranco Costamagna <locutusofborg@debian.org>  Sat, 07 Jan 2023 14:00:48 +0100
+
 clementine (1.4.0~rc1+git867-g9ef681b0e+dfsg-1) unstable; urgency=medium
 
   * New upstream snapshot.
diff -pruN 1.4.0~rc1+git867-g9ef681b0e+dfsg-1/debian/rules 1.4.0~rc1+git867-g9ef681b0e+dfsg-1ubuntu1/debian/rules
--- 1.4.0~rc1+git867-g9ef681b0e+dfsg-1/debian/rules	2022-12-17 15:03:09.000000000 +0000
+++ 1.4.0~rc1+git867-g9ef681b0e+dfsg-1ubuntu1/debian/rules	2023-01-07 13:00:38.000000000 +0000
@@ -3,6 +3,10 @@
 export DEB_CXXFLAGS_MAINT_APPEND = -DQT_NO_DEBUG_OUTPUT -DQT_NO_WARNING_OUTPUT
 export DEB_VERSION = $(shell dpkg-parsechangelog | egrep '^Version:' | cut -f 2 -d ' ')
 
+ifeq ($(DEB_HOST_ARCH),ppc64el)
+  export DEB_CXXFLAGS_MAINT_APPEND = -O2
+endif
+
 %:
 	dh $@ --buildsystem=cmake