Member Avatar for shinsengumi

Hello all. I'm trying to compile a socket program in DevC++ but everytime I do it I get a lot of linker errors like these:

[Linker error] undefined reference to `WSAStartup@8'
[Linker error] undefined reference to `htons@4' 
[Linker error] undefined reference to `inet_pton' 
[Linker error] undefined reference to `socket@12'

I have previously run the socket program successfully in Linux but I have to export it to WindowsXP, and I must admit I'm relatively new to programming in WindowsXP. These are the header files I used in the WindowsXP version:

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
//#include <winsock.h>
#include <winsock2.h>
#include <stdio.h>
#include <string.h>
#include <ws2tcpip.h>
#include <stdlib.h>
#include <stdio.h>
// Need to link with Ws2_32.lib, Mswsock.lib, and Advapi32.lib
#pragma comment (lib, "Ws2_32.lib")
#pragma comment (lib, "Mswsock.lib")
#pragma comment (lib, "AdvApi32.lib")

I just found those header files in sample socket programs in the internet and I don't know if I really need all of them, and whether I should use winsock.h or winsock2.h. I also learned that to solve these linker problems I need to link the libraries to the program and that's my main problem now. How do I link the libraries in WindowsXP and make the program in DevC++ work? By the way I'm using C programming language. Please help me solve this problem. Thanks!

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Member Avatar for Ancient Dragon

Check the compiler output screen to see if it recognizes thse pragmas. I know those functions are in ws2_32.lib. Its possible the pragmas were ignored.

Edited by Ancient Dragon because: n/a
Member Avatar for shinsengumi

Your program must link to ws2_32.lib

Hey Ancient Dragon thanks for the quick reply. First off, I'd like to say that I tried downloading code::blocks and vc++ as you previously suggested but my OS and its SP isn't supported by vc++ so I resorted to devc++ instead.
Back to the topic, yes I know I need to link the program to some libraries, but how do I actually link it? It sounds silly but I really have no clue on how to do it. Hope you could explain a little bit further how. Thanks again.

Member Avatar for Ancient Dragon

I don't know how to do it with dev-c++ because I don't use it any more. Look around the options, there should be a place where you can enter the library names.

What OS/SP are you using?

Member Avatar for shinsengumi

I don't know how to do it with dev-c++ because I don't use it any more. Look around the options, there should be a place where you can enter the library names.

What OS/SP are you using?

I'm using WindowsXP service pack 2. When I tried to download the vc++ I read that it requires service pack 3 or higher. I can't download service pack 3 for winxp so I decided to use devc++.

I added in the setting of devc++'s environment the directory where winsock.dll is located but I still got the same linker errors. I read somewhere that maybe I need to download microsoft sdk and add them to the compiler settings but I'm already thinking about downloading Cygwin instead. I think this will make the compilation of my Linux program in windows much much simpler. What's your take on this? Thanks

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