$NetBSD$

--- examples/other/mbrot/bkend.c.orig	1999-07-31 01:29:27.000000000 +0200
+++ examples/other/mbrot/bkend.c
@@ -39,6 +39,7 @@ char *path;
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 
 filter(io,name,argv)
 int io;
