$NetBSD: patch-ap,v 1.1 2008/09/01 06:57:58 dholland Exp $

--- libshade/options.c~	1992-02-09 22:04:09.000000000 -0500
+++ libshade/options.c	2008-09-01 02:28:43.000000000 -0400
@@ -30,6 +30,7 @@
  * Initial version.
  * 
  */
+#include <stdlib.h>
 #include "rayshade.h"
 #include "options.h"
 #include "stats.h"