$NetBSD: patch-ab,v 1.3 2013/03/24 16:51:08 joerg Exp $
--- Server.tproj/RTSPSession.cpp.orig	2005-04-27 10:17:44.000000000 +0000
+++ Server.tproj/RTSPSession.cpp
@@ -47,7 +47,7 @@
 #include "OSArrayObjectDeleter.h"
 #include "md5digest.h"
 
-#if __FreeBSD__ || __hpux__	
+#if __FreeBSD__ || __hpux__ || __NetBSD__ || defined(__DragonFly__)
     #include <unistd.h>
 #endif