devtools: fix test of ninja install

When trying to compile some examples with libdpdk.pc,
the right environment (for default target) was not loaded.
The consequence is to not detect some dependencies because
of missing directories in PKG_CONFIG_PATH.

The environment preparation is moved to a dedicate function,
and called for the default target (cc),
before testing the install output of the default build.

Fixes: 2722367 ("devtools: load target-specific compilation environment")

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>

devtools/test-meson-builds.sh

@@ -37,11 +37,15 @@ fi
 default_path=$PATH
 default_pkgpath=$PKG_CONFIG_PATH
 
-reset_env ()
+load_env () # <target compiler>
 {
+	targetcc=$1
 	export PATH=$default_path
 	export PKG_CONFIG_PATH=$default_pkgpath
 	unset DPDK_MESON_OPTIONS
+	command -v $targetcc >/dev/null 2>&1 || return 1
+	DPDK_TARGET=$($targetcc -v 2>&1 | sed -n 's,^Target: ,,p')
+	. $srcdir/devtools/load-devel-config
 }
 
 build () # <directory> <target compiler> <meson options>
@@ -52,10 +56,7 @@ build () # <directory> <target compiler> <meson options>
 	shift
 	# skip build if compiler not available
 	command -v ${CC##* } >/dev/null 2>&1 || return 0
-	command -v $targetcc >/dev/null 2>&1 || return 0
-	reset_env
-	DPDK_TARGET=$($targetcc -v 2>&1 | sed -n 's,^Target: ,,p')
-	. $srcdir/devtools/load-devel-config
+	load_env $targetcc || return 0
 	if [ ! -f "$builddir/build.ninja" ] ; then
 		options="--werror -Dexamples=all"
 		for option in $DPDK_MESON_OPTIONS ; do
@@ -128,6 +129,7 @@ build_path=build-x86-default
 export DESTDIR=$(pwd)/$build_path/install-root
 $ninja_cmd -C $build_path install
 
+load_env cc
 pc_file=$(find $DESTDIR -name libdpdk.pc)
 export PKG_CONFIG_PATH=$(dirname $pc_file):$PKG_CONFIG_PATH