devtools: test meson build with available compilers

Allow the script to run with a reduced set of builds if clang, or
other compilers, are missing.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>

devtools/test-meson-builds.sh

@@ -28,6 +28,7 @@ build () # <directory> <meson options>
 {
 	builddir=$1
 	shift
+	if command -v $CC >/dev/null 2>&1 ; then
 		if [ ! -f "$builddir/build.ninja" ] ; then
 			options="--werror -Dexamples=all $*"
 			echo "$MESON $options $srcdir $builddir"
@@ -46,6 +47,7 @@ build () # <directory> <meson options>
 			echo "$ninja_cmd -C $builddir"
 			$ninja_cmd -C $builddir
 		fi
+	fi
 }
 
 if [ "$1" = "-vv" ] ; then
@@ -80,7 +82,7 @@ build build-x86-default -Dmachine=$default_machine $use_shared
 c=aarch64-linux-gnu-gcc
 if command -v $c >/dev/null 2>&1 ; then
 	# compile the general v8a also for clang to increase coverage
-	export CC="ccache clang"
+	export CC="clang"
 	build build-arm64-host-clang $use_shared \
 		--cross-file $srcdir/config/arm/arm64_armv8_linux_gcc