Master.o: In function `ListenSocket': ../../src/shared/Network/ListenSocket.h:43: undefined reference to `RASocket::RASocket(SocketHandler&)' Master.o: In function `ListenSocket::OnRead()': ../../src/shared/Network/ListenSocket.h:285: undefined reference to `RASocket::RASocket(SocketHandler&)' ../../src/shared/Network/ListenSocket.h:323: undefined reference to `RASocket::RASocket(SocketHandler&)' collect2: ld returned 1 exit status make[3]: *** [mangosd] Error 1 make[3]: Leaving directory `/home/deafboy/sources/mangos/src/mangosd' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/deafboy/sources/mangos/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/deafboy/sources/mangos' make: *** [all] Error 2