diff -Nru dune-localfunctions-2.8.0/debian/changelog dune-localfunctions-2.8.0/debian/changelog
--- dune-localfunctions-2.8.0/debian/changelog	2021-11-04 09:02:55.000000000 +0000
+++ dune-localfunctions-2.8.0/debian/changelog	2021-11-04 09:39:18.000000000 +0000
@@ -1,8 +1,8 @@
-dune-localfunctions (2.8.0-5ubuntu1) jammy; urgency=medium
+dune-localfunctions (2.8.0-5ubuntu2) jammy; urgency=medium
 
-  * Use gcc-10 on ppc64el to fix a test failure
+  * Use -O1 CXXFLAG instead of gcc-10
 
- -- Gianfranco Costamagna <locutusofborg@debian.org>  Thu, 04 Nov 2021 10:02:55 +0100
+ -- Gianfranco Costamagna <locutusofborg@debian.org>  Thu, 04 Nov 2021 10:39:18 +0100
 
 dune-localfunctions (2.8.0-5) unstable; urgency=medium
 
diff -Nru dune-localfunctions-2.8.0/debian/control dune-localfunctions-2.8.0/debian/control
--- dune-localfunctions-2.8.0/debian/control	2021-11-04 09:02:53.000000000 +0000
+++ dune-localfunctions-2.8.0/debian/control	2021-11-04 09:39:17.000000000 +0000
@@ -10,7 +10,7 @@
 Build-Depends: debhelper-compat (= 13),
  cmake (>= 3.13), gfortran, mpi-default-bin, mpi-default-dev, pkg-config, python3,
  libdune-common-dev (>= 2.8.0),
- libdune-geometry-dev (>= 2.8.0), gcc-10 [ppc64el], g++-10 [ppc64el]
+ libdune-geometry-dev (>= 2.8.0)
 Build-Depends-Indep: doxygen, ghostscript, graphviz, imagemagick, texlive-latex-extra, texlive-latex-recommended, texlive-pictures
 Rules-Requires-Root: no
 
diff -Nru dune-localfunctions-2.8.0/debian/rules dune-localfunctions-2.8.0/debian/rules
--- dune-localfunctions-2.8.0/debian/rules	2021-11-04 09:02:26.000000000 +0000
+++ dune-localfunctions-2.8.0/debian/rules	2021-11-04 09:39:18.000000000 +0000
@@ -3,8 +3,7 @@
 include /usr/share/dune/dune-debian.mk
 
 ifneq (,$(filter ppc64el, $(DEB_HOST_ARCH)))
-    export CC=gcc-10
-    export CXX=g++-10
+    export CXXFLAGS=-O1
 endif
 
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