Thread: Linking errors

Hi,

I am using Microsoft Visual C++ 2008 (Express Edition) and OpenCV 1.0
on Windows XP Service Pack 3. Looking forward to any suggestions.

I get the following errors during linking while trying to build some code:

Compiling manifest to resources...
Microsoft (R) Windows (R) Resource Compiler Version 6.1.6723.1
Copyright (C) Microsoft Corporation. All rights reserved.
Linking...
mainSven.obj : error LNK2019: unresolved external symbol _inet_addr@4
referenced in function _main
mainSven.obj : error LNK2019: unresolved external symbol _WSACleanup@0
referenced in function "void __cdecl noticeMax(void)" (?noticeMax@@YAXXZ)
mainSven.obj : error LNK2019: unresolved external symbol
_closesocket@4 referenced in function "void __cdecl noticeMax(void)"
(?noticeMax@@YAXXZ)
mainSven.obj : error LNK2019: unresolved external symbol _sendto@24
referenced in function "void __cdecl noticeMax(void)" (?noticeMax@@YAXXZ)
mainSven.obj : error LNK2019: unresolved external symbol _htons@4
referenced in function "void __cdecl noticeMax(void)" (?noticeMax@@YAXXZ)
mainSven.obj : error LNK2019: unresolved external symbol _socket@12
referenced in function "void __cdecl noticeMax(void)" (?noticeMax@@YAXXZ)
mainSven.obj : error LNK2019: unresolved external symbol _WSAStartup@8
referenced in function "void __cdecl noticeMax(void)" (?noticeMax@@YAXXZ)
C:\Documents and Settings\User\My Documents\Visual Studio
2008\Projects\SVENsrc\VC++Project\Debug\sven.exe : fatal error
LNK1120: 7 unresolved externals

I have tried running the code on Microsoft Visual C++ 2005 (Express
Edition) and have also tried the "Debug" and "Release" compilation
modes, but the error remains the same.

Its a human tracking source code downloaded from:
http://deprogramming.us/ai/downloads/SVENCVsrc.tar.gz

Thanks a lot in advance

BR,
Zeeshan

I am guessing that you did not link to wsock32.lib or winsock32.lib, or ws2_32.lib, as the case may be. Read Note for Windows Programmers from Beej's Guide to Network Programming.