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cwinsockundefined-referenceunresolved-external

Undefined Reference / Unresolved External Symbol

I'm trying to use WinSock.h header file, but I get either one of the errors below: in VS2010 (C++): 

Unresolved External Symbol to [the function included in winsock.g, e.g socket()]

in gcc command line (C):

Undefined Reference to [the function included in winsock.g, e.g socket()]

code is simple: Just including the Winsock.h header file and then 

SOCKET s =  socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);

I get an error on socket() & closesocket() functions...! I searched in Stackoverflow and found several topics over this, but they all suggested a change in the header file. I can't change WinSock.h here, so I need a solution in the actual code that uses the header file. Any ideas?

Solution

  • According to the documentation, you need ws2_32.lib.

    Go to Project->Properties->Linker->Additional dependencies and add ws2_32.lib.

    EDIT:

    That should be Project->Properties->Linker->Input->Additional Dependencies