$NetBSD: patch-av,v 1.2 2015/12/29 23:34:52 dholland Exp $

Use standard headers.

--- rts/net.c.orig	2005-03-01 16:25:59.000000000 +0000
+++ rts/net.c
@@ -2,6 +2,7 @@
 
 #include "rts.h"
 #include <fcntl.h>
+#include <unistd.h>
 
 static void start_mpdx ();