I am compiling bitcoin-0.9.3, have some undefined reference about UPNP. But I had made miniupnpc-1.9.
make[3]: Entering directory /D/BTC/Dev/bitcoin-0.9.3/src' CXXLD bitcoind.exe libbitcoin_server.a(net.o): In functionZ13ThreadMapPortv':
d:\BTC\Dev\bitcoin-0.9.3\src/net.cpp:1066: undefined reference to _imp__upnpDiscover' d:\BTC\Dev\bitcoin-0.9.3\src/net.cpp:1073: undefined reference to_imp__UPNP_GetValidIGD'