Re: [Mingw-users] socket and version can't be linked

[JonY <10...@gm...>]

fei huang wrote:
> hi all:
>  I have already added -lws2_32 to my LDFLAGS and libws2_32.a is right
> at the MinGW lib directory, but
> gcc still complains about undefined referneces like "send connect
> htons etc..." I printed out the command line
> and saw it was correct, any advise please? I get completely
> frustrated, even worse than my first experience on Linux.
> 
> below is part of the message:
> ...
> Socket.o: In function `ZN2ZQ6common6SocketC2Eiii':
> E:/ZQProjs/common/Socket.cpp:141: undefined reference to `socket@12'
> Socket.o: In function `ZN2ZQ6common6SocketC1Eiii':
> E:/ZQProjs/common/Socket.cpp:141: undefined reference to `socket@12'
> Socket.o: In function `ZN2ZQ6common6Socket8readLineEPcjm':
> E:/ZQProjs/common/Socket.cpp:214: undefined reference to `recv@16'
> E:/ZQProjs/common/Socket.cpp:237: undefined reference to `recv@16'
> Socket.o: In function `ZN2ZQ6common6Socket9endSocketEv':
> E:/ZQProjs/common/Socket.cpp:306: undefined reference to `setsockopt@20'
> E:/ZQProjs/common/Socket.cpp:311: undefined reference to `closesocket@4'
> Socket.o: In function `ZN2ZQ6common6Socket12connectErrorEv':
> E:/ZQProjs/common/Socket.cpp:321: undefined reference to `WSAGetLastError@0'
> Socket.o: In function `ZN2ZQ6common6Socket12setBroadcastEb':
> E:/ZQProjs/common/Socket.cpp:400: undefined reference to `setsockopt@20'
> Socket.o: In function `ZN2ZQ6common6Socket12setKeepAliveEb':
> E:/ZQProjs/common/Socket.cpp:411: undefined reference to `setsockopt@20'
> Socket.o: In function `ZN2ZQ6common6Socket10setRoutingEb':
> E:/ZQProjs/common/Socket.cpp:434: undefined reference to `setsockopt@20'
> Socket.o: In function `ZN2ZQ6common6Socket10setNoDelayEb':
> E:/ZQProjs/common/Socket.cpp:446: undefined reference to `setsockopt@20'
> Socket.o: In function `ZN2ZQ6common6Socket13setTimeToLiveEh':
> E:/ZQProjs/common/Socket.cpp:497: undefined reference to `setsockopt@20'
> Socket.o:E:/ZQProjs/common/Socket.cpp:517: more undefined references
> to `setsockopt@20' follow
> Socket.o: In function `ZN2ZQ6common6Socket9isPendingENS1_7PendingEm':
> E:/ZQProjs/common/Socket.cpp:544: undefined reference to `select@20'
> E:/ZQProjs/common/Socket.cpp:547: undefined reference to `select@20'
> E:/ZQProjs/common/Socket.cpp:550: undefined reference to `select@20'
> E:/ZQProjs/common/Socket.cpp:555: undefined reference to `__WSAFDIsSet@8'
> 
> and main part of my command line
> g++ -fPIC -shared -fvisibility=hidden -L. -LE:\projs\lib
> -LE:\Expat2.0.1\Bin -LE:\projs/bin -lexpat -lws2_32 -lrpcrt4 -lversion
> -o libCommon.so Exception.o Log.o expatxx.o InetAddr.o Socket.o
> Scheduler.o
> 
> my env:
> 
> MinGW5.1.3
> WindowsXP
> 
> tks a lot
> 
> fei
> 

Hi,
Add the -llib stuff behind your object files.

eg:
g++ -fPIC -shared -fvisibility=hidden -L. -LE:\projs\lib 
-LE:\Expat2.0.1\Bin -LE:\projs/bin -o libCommon.so Exception.o Log.o 
expatxx.o InetAddr.o Socket.o Scheduler.o -lexpat -lws2_32 -lrpcrt4 
-lversion