$OpenBSD: patch-gcc_read-rtl_c,v 1.3 2009/04/16 18:36:48 espie Exp $
--- gcc/read-rtl.c.orig	Sat Sep  1 17:28:30 2007
+++ gcc/read-rtl.c	Tue Apr  7 19:38:59 2009
@@ -783,7 +783,7 @@ 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);
