# Setting up Dev-Cpp and WinSock lib's

This topic is 4694 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

## Recommended Posts

Hi everyone! I wrote a little HTTP page fetcher in Dev-Cpp, and I'm using Winsock as networking API. The code compiles just fine, but it doesn't link : it's missing all the Winsock functions. So I tried to add the options -lws2_32 and -lwsock32 as recommended on a site I google'd, but I still have the same problem. Just for the log, here some of my linking errors : main.o:main.cpp:(.text+0x149): undefined reference to WSAStartup@8' main.o:main.cpp:(.text+0x1ce): undefined reference to WSACleanup@0' main.o:main.cpp:(.text+0x205): undefined reference to socket@12' main.o:main.cpp:(.text+0x241): undefined reference to htons@4' ... main.o:main.cpp:(.text+0x476): undefined reference to closesocket@4' main.o:main.cpp:(.text+0x47e): undefined reference to WSACleanup@0' With and without the -l options, it's the same result. I'm stumped... I'd be really glad if you could point out what I'm missing. :) Thanks a lot!

##### Share on other sites
If you include <winsock2.h> before you include <windows.h>, then you need to link with ws2_32.dll at runtime. Exactly how dev-cpp does that, I don't know, but it's likely to be something like "-lws2_32". You should turn on verbose mode and see what libraries it's actually looking for.

If you still can't get it to work, I suggest a support forum for Dev-CPP -- your problem is one of "how can I link with Windows API XXX", not a problem that has anything actually to do with networking. You're likely to get better answers in the right forum.

##### Share on other sites
I tried to turn on verbose, to no avail. I'll go see what I can read on the Dev-Cpp forums.

Many thanks for your insight, hplus!

##### Share on other sites
I do it this way:
goto Project menu and Click project options. Then click the parameters tab. Click the add library or object button. Find your dev-cpp\lib directory and find Dev-Cpp/lib/libws2_32.a press ok twice. It should work.

In my projects I have windows.h included above winsock2.h

##### Share on other sites
If you use winsock2.h you may need to add the libwsock32.a library (located in Dev-Cpp/lib/) to the project through "Project Options->Parameters->Add library"

##### Share on other sites
I had this same problem and found this in google. Thanks alot guys, it works.

##### Share on other sites
I had to ! Thanks very much ! Kiss you all love you all ! THANKS !!!

code on!

• 9
• 16
• 9
• 13
• 41