libgomp does not respect --disable-werror http://bugs.gentoo.org/229059 http://gcc.gnu.org/PR38436 --- gcc-4.3.2/libgomp/configure +++ gcc-4.3.2/libgomp/configure @@ -3297,7 +3297,7 @@ # Add -Wall -Werror if we are using GCC. if test "x$GCC" = "xyes"; then - XCFLAGS="$XCFLAGS -Wall -Werror" + XCFLAGS="$XCFLAGS -Wall" fi # Find other programs we need.