$OpenBSD: patch-gcc_tree-mudflap_c,v 1.1.1.1 2007/03/17 22:35:26 espie Exp $
--- gcc/tree-mudflap.c.orig	Thu Mar  8 20:02:51 2007
+++ gcc/tree-mudflap.c	Mon Mar 12 11:37:54 2007
@@ -237,7 +237,7 @@ mf_file_function_line_tree (location_t l
   else
     op = name = cp = "";
 
-  string = concat (file, colon, line, op, name, cp, NULL);
+  string = concat (file, colon, line, op, name, cp, (void *)0);
   result = mf_build_string (string);
   free (string);
 
