$OpenBSD: patch-gcc_read-rtl_c,v 1.1.1.1 2009/06/22 22:37:32 sthen Exp $
--- gcc/read-rtl.c.orig	Wed Jul 11 22:32:42 2007
+++ gcc/read-rtl.c	Mon Jun 22 00:54:01 2009
@@ -784,7 +784,7 @@ join_c_conditions (const char *cond1, const char *cond
   if (cond2 == 0 || cond2[0] == 0)
     return cond1;
 
-  result = concat ("(", cond1, ") && (", cond2, ")", NULL);
+  result = concat ("(", cond1, ") && (", cond2, ")", (void *)0);
   obstack_ptr_grow (&joined_conditions_obstack, result);
   obstack_ptr_grow (&joined_conditions_obstack, cond1);
   obstack_ptr_grow (&joined_conditions_obstack, cond2);