Wrap __attribute__s in macros

code/qcommon/common.c

@@ -2280,7 +2280,7 @@ Just throw a fatal error to
 test error shutdown procedures
 =============
 */
-static void __attribute__((__noreturn__)) Com_Error_f (void) {
+static void Q_NO_RETURN Com_Error_f (void) {
 	if ( Cmd_Argc() > 1 ) {
 		Com_Error( ERR_DROP, "Testing drop error" );
 	} else {