$OpenBSD$
--- source/net_udp.cpp.orig	Wed Sep 12 11:54:18 2012
+++ source/net_udp.cpp	Wed Sep 12 11:56:12 2012
@@ -56,7 +56,10 @@
 class VUdpDriver : public VNetLanDriver
 {
 public:
+
+#ifndef MAXHOSTNAMELEN
 	enum { MAXHOSTNAMELEN = 256 };
+#endif
 
 	VUdpDriver();
 	int Init();