$OpenBSD: patch-gcc_cp_parser_c,v 1.1.1.1 2010/10/10 17:39:06 steven Exp $
--- gcc/cp/parser.c.orig	Sat Jul  7 04:02:37 2007
+++ gcc/cp/parser.c	Mon Jun 14 19:23:04 2010
@@ -16499,7 +16499,7 @@ cp_parser_require (cp_parser* parser,
       /* Output the MESSAGE -- unless we're parsing tentatively.  */
       if (!cp_parser_simulate_error (parser))
 	{
-	  char *message = concat ("expected ", token_desc, NULL);
+	  char *message = concat ("expected ", token_desc, (void *)0);
 	  cp_parser_error (parser, message);
 	  free (message);
 	}
