$NetBSD: patch-ab,v 1.2 2014/04/01 11:13:28 wiz Exp $

Provide default implementation if none exists.

--- third-party/libnatpmp/getgateway.c.orig	2008-08-09 06:08:13.000000000 +0200
+++ third-party/libnatpmp/getgateway.c
@@ -49,6 +49,13 @@
 #undef USE_SYSCTL_NET_ROUTE
 #endif
 
+#if !defined(USE_PROC_NET_ROUTE) && !defined(USE_SOCKET_ROUTE) && !defined(USE_SYSCTL_NET_ROUTE)
+int getdefaultgateway(in_addr_t * addr)
+{
+	return -1;
+}
+#endif
+
 #ifdef WIN32
 #undef USE_PROC_NET_ROUTE
 #undef USE_SOCKET_ROUTE