File multichain-upnp.patch of Package multichain

--- src/net/net.cpp	2018-04-20 15:51:39.910634095 +0200
+++ net.cpp	2018-04-20 17:08:09.476413961 +0200
@@ -1094,10 +1094,14 @@
 #ifndef UPNPDISCOVER_SUCCESS
     /* miniupnpc 1.5 */
     devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
-#else
+#elif MINIUPNPC_API_VERSION < 14
     /* miniupnpc 1.6 */
     int error = 0;
     devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
+#else
+    /* miniupnpc 1.9 */
+    int error = 0;
+    devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, 2, &error);
 #endif
 
     struct UPNPUrls urls;