From ef5391b7658b0ce9c0626bf3ecdc3db600e44c0e Mon Sep 17 00:00:00 2001
From: Thomas Monjalon <thomas@monjalon.net>
Date: Wed, 20 May 2020 11:52:25 +0200
Subject: [PATCH] devtools: allow warnings in ABI reference build

There is no point in forcing warning-free compilation when building
an ABI reference. It is only preventing from compiling ABI reference
of old releases with recent compilers.

Note: DPDK 20.02 is built (with warnings) by GCC 10 if using -fcommon.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
---
 devtools/test-build.sh        | 6 ++----
 devtools/test-meson-builds.sh | 3 +--
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/devtools/test-build.sh b/devtools/test-build.sh
index 6e53f86fc8..f013656024 100755
--- a/devtools/test-build.sh
+++ b/devtools/test-build.sh
@@ -68,8 +68,6 @@ J=$DPDK_MAKE_JOBS
 builds_dir=${DPDK_BUILD_TEST_DIR:-.}
 short=false
 unset verbose
-# for ABI checks, we need debuginfo
-test_cflags="-Wfatal-errors -g"
 while getopts hj:sv ARG ; do
 	case $ARG in
 		j ) J=$OPTARG ;;
@@ -248,7 +246,7 @@ for conf in $configs ; do
 	config $dir $target $options
 
 	echo "================== Build $conf"
-	${MAKE} -j$J EXTRA_CFLAGS="$test_cflags $DPDK_DEP_CFLAGS" \
+	${MAKE} -j$J EXTRA_CFLAGS="-Wfatal-errors -g $DPDK_DEP_CFLAGS" \
 		EXTRA_LDFLAGS="$DPDK_DEP_LDFLAGS" $verbose O=$dir
 	! $short || break
 	export RTE_TARGET=$target
@@ -282,7 +280,7 @@ for conf in $configs ; do
 			echo -n "================== Build $conf "
 			echo "($DPDK_ABI_REF_VERSION)"
 			${MAKE} -j$J \
-				EXTRA_CFLAGS="$test_cflags $DPDK_DEP_CFLAGS" \
+				EXTRA_CFLAGS="-Wno-error -g $DPDK_DEP_CFLAGS" \
 				EXTRA_LDFLAGS="$DPDK_DEP_LDFLAGS" $verbose \
 				O=$abirefdir/build
 			export RTE_TARGET=$target
diff --git a/devtools/test-meson-builds.sh b/devtools/test-meson-builds.sh
index e8df017596..18b874fac5 100755
--- a/devtools/test-meson-builds.sh
+++ b/devtools/test-meson-builds.sh
@@ -74,7 +74,6 @@ config () # <dir> <builddir> <meson options>
 		return
 	fi
 	options=
-	options="$options --werror"
 	if echo $* | grep -qw -- '--default-library=shared' ; then
 		options="$options -Dexamples=all"
 	else
@@ -127,7 +126,7 @@ build () # <directory> <target compiler> <meson options>
 	# skip build if compiler not available
 	command -v ${CC##* } >/dev/null 2>&1 || return 0
 	load_env $targetcc || return 0
-	config $srcdir $builds_dir/$targetdir $*
+	config $srcdir $builds_dir/$targetdir --werror $*
 	compile $builds_dir/$targetdir
 	if [ -n "$DPDK_ABI_REF_VERSION" ]; then
 		abirefdir=${DPDK_ABI_REF_DIR:-reference}/$DPDK_ABI_REF_VERSION