$OpenBSD: patch-lib_obstack_c,v 1.2 2013/11/02 08:44:19 ajacoutot Exp $
--- lib/obstack.c.orig	Sat Dec 29 02:37:54 2007
+++ lib/obstack.c	Sat Nov  2 09:04:48 2013
@@ -21,6 +21,14 @@
 
 #include "obstack.h"
 
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
 /* NOTE BEFORE MODIFYING THIS FILE: This version number must be
    incremented whenever callers compiled using an old obstack.h can no
    longer properly call the functions in this obstack.c.  */
