$OpenBSD: patch-gcc_tree-nested_c,v 1.6 2009/04/16 18:36:48 espie Exp $
--- gcc/tree-nested.c.orig	Sat Sep  1 17:28:30 2007
+++ gcc/tree-nested.c	Tue Apr  7 19:38:59 2009
@@ -221,7 +221,7 @@ get_frame_type (struct nesting_info *info)
 
       name = concat ("FRAME.",
 		     IDENTIFIER_POINTER (DECL_NAME (info->context)),
-		     NULL);
+		     (void *)0);
       TYPE_NAME (type) = get_identifier (name);
       free (name);