$NetBSD: patch-ab,v 1.1.1.1 2001/04/22 09:58:59 kei Exp $

--- auto.c.orig	Sat Aug 31 17:14:27 1996
+++ auto.c
@@ -26,6 +26,7 @@
 usage:\n\
     auto [-h host-name] [-p port-number] [-n player-name]\n"
 
+#include <unistd.h>
 #include "pai.h"
 #include "global.h"