Linker error while I try to add asio to my C++ project

Question

I have a following simple program:

#include<iostream>
#include<boost/asio.hpp>
    
int main() {
        
return 0;
    
}

And when I try to compile it with (mingw) I get the following error:

C:\Users\Kamran\Desktop\Networking>g++ -I"C:\mingw\mingw\Include" -std=c++17 sou
rce.cpp
c:/mingw/mingw/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mi
ngw32/bin/ld.exe: C:\Users\Kamran\AppData\Local\Temp\cc4n0EJF.o:source.cpp:(.tex
t$_ZN5boost4asio6detail17winsock_init_base7startupERNS2_4dataEhh[_ZN5boost4asio6
detail17winsock_init_base7startupERNS2_4dataEhh]+0x73): undefined reference to `
__imp_WSAStartup'
c:/mingw/mingw/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mi
ngw32/bin/ld.exe: C:\Users\Kamran\AppData\Local\Temp\cc4n0EJF.o:source.cpp:(.tex
t$_ZN5boost4asio6detail17winsock_init_base7cleanupERNS2_4dataE[_ZN5boost4asio6de
tail17winsock_init_base7cleanupERNS2_4dataE]+0x35): undefined reference to `__im
p_WSACleanup'

Any idea how should I debug?

Have you linked with the `ws2_32` or perhaps the `wsock32` library? — Ted Lyngmo, Jan 05 '22 at 00:33
i can't find these files i didn't build the boost just download a 7zip file and extracted it in my c drive — milad, Jan 05 '22 at 00:44

BZKN · Answer 1 · 2022-01-13T00:28:49.540

1

Assuming you have installed boost library on your Windows machine, you need to add -lwsock32 in your command line.

edited Jan 13 '22 at 00:28

answered Jan 05 '22 at 00:45

BZKN

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i didn't build or install anything i just download a 7z file and extracted all the header files was inside the zip file and i try that didn't work same error – milad Jan 05 '22 at 00:58
@milad ok. But have you tried with the given command? – BZKN Jan 13 '22 at 00:30
1

Works for me using cmake – AntonB Oct 22 '22 at 01:12
@AntonB great! Can you please accept it as a solution if it was helpful for you? It encourages new people like me here in SO to write helpful answers :) – BZKN Oct 22 '22 at 10:21
@BZKN I don’t believe I can, only the original auther can do it. – AntonB Oct 22 '22 at 12:27
1

@AntonB yes, you are right....all good :) – BZKN Oct 22 '22 at 16:13

Linker error while I try to add asio to my C++ project

1 Answers1