If you are using a MSVC-compatible compiler(Borland, Intel ...), use
"#pragma comment("ws2_32.lib")".
If you are using GCC(MinGW/Cygwin) or a compiler that doesnt support
auto-linking, you need to fix the linker command. For example, in case
of GCC, you have to add "-lws2_32" to the linker command.

On Sep 8, 10:03 am, mm <[email protected]> wrote:
> Hi thank you for your reply
>
> I add #pragma comment(lib,"Ws2_32.lib") at the begining of the
> socketft.h  but nothing changed and still I have the errors. can you
> please tell me what is wrong?
>
> thank you
>
> On Sep 8, 9:54 am, "ka-bar" <[email protected]> wrote:
>
> > Try this:
> > #pragma comment(lib,"Ws2_32.lib")
> > Add it to your file.
>
> > ka-bar
>
> > --------------------------------------------------
> > From: "mm" <[email protected]>
> > Sent: Tuesday, September 08, 2009 8:55 AM
> > To: "Crypto++ Users" <[email protected]>
> > Subject: compile error in socketft.cpp
>
> > > Hi everyone
>
> > > I am a new member to this group so firstly thnaks to evryone
>
> > > I am trying to compile the crypto++ on omnet++ in windows xp.
> > > first I got an error in rijndael.cpp which said  :'alloca' was not
> > > declared in this scope therefore I add #include <malloc.h> at the
> > > begining of rijndael.cpp  and try to compile again but I got 6 errors
> > > in socketft.cpp as follows:
>
> > > undefined reference to `_wsaenumnetworkeve...@12'
> > > undefined reference to `_wsaeventsel...@12'
> > > undefined reference to `_wsagetoverlappedres...@20'
> > > undefined reference to `_wsagetoverlappedres...@20'
> > > undefined reference to `_wsar...@28'
> > > undefined reference to `_wsas...@28'
>
> > > can you please help me what is wrong?
>
> > > thanks in advance- Hide quoted text -
>
> > - Show quoted text -
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