Commit aa527b65 authored Feb 06, 2010 by Aurelien Jarno

configure: fix compilation on hosts without -fstack-protector-all



Commit a0f291fc has enabled
-fstack-protector-all on all targets, as the configure test is bogus.
GCC only emits a warning and not an error if this option is not
supported, so the configure scripts doesn't detect the problem.

This patch changes the configure script to try the various flags
with -Werror in addition to catch the possible warnings.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

parent 22574c81

configure

+5 −2

Original line number	Diff line number	Diff line
		@@ -140,11 +140,14 @@ LDFLAGS="-g $LDFLAGS"

		gcc_flags="-Wold-style-declaration -Wold-style-definition -fstack-protector-all"
		cat > $TMPC << EOF
		int main(void) { }
		int main(void) { return 0; }
		EOF
		for flag in $gcc_flags; do
		if compile_prog "$QEMU_CFLAGS" "$flag" ; then
		echo $testing $flag
		if compile_prog "-Werror $QEMU_CFLAGS" "-Werror $flag" ; then
		QEMU_CFLAGS="$flag $QEMU_CFLAGS"
		else
		echo disable $flag
		fi
		done