libglvnd: unbreak arm builds

srcpkgs/libglvnd/template

@@ -21,6 +21,10 @@ if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
 	configure_args="-Dtls=disabled"
 fi
 
+case "$XBPS_TARGET_MACHINE" in
+	arm*) configure_args+=" -Dasm=disabled";;
+esac
+
 post_install() {
 	$XBPS_FETCH_CMD "https://git.archlinux.org/svntogit/packages.git/plain/trunk/LICENSE?h=packages/libglvnd>LICENSE"
 	vlicense LICENSE