$OpenBSD: patch-gcc_read-rtl_c,v 1.1.1.1 2010/10/10 17:39:06 steven Exp $
--- gcc/read-rtl.c.orig	Sat Feb 18 23:06:53 2006
+++ gcc/read-rtl.c	Mon Jun 14 19:23:04 2010
@@ -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);