Re: [Mingw-users] Linker requires ws2_32.lib

[Chris B. <ch...@re...>]

Hi Earnie,

Thanks very much for that - it worked fine. I feel like a complete newbie!

Chris.

----- Original Message -----
From: "Earnie Boyd" <ear...@ya...>
To: "Chris Burton" <ch...@re...>
Cc: <min...@li...>
Sent: Friday, December 06, 2002 10:45 PM
Subject: Re: [Mingw-users] Linker requires ws2_32.lib


> Chris Burton wrote:
> > Hello,
> >
> > I have just installed MinGW and got it working for windows programming.
> > However, when I try to compile and then link a program that uses
> > sockets, I get the following linker errors:
> >
> > C:\Projects\ftp>g++ -o GetData GetData.o -mwindows
> > GetData.o(.text+0xdc):GetData.cpp: undefined reference to `send@16'
> > <mailto:`send@16'>
> > GetData.o(.text+0x10b):GetData.cpp: undefined reference to `recv@16'
> > <mailto:`recv@16'>
> > GetData.o(.text+0x2a6):GetData.cpp: undefined reference to
> > `gethostbyname@4' <mailto:`gethostbyname@4'>
> > GetData.o(.text+0x302):GetData.cpp: undefined reference to `socket@12'
> > <mailto:`socket@12'>
> > GetData.o(.text+0x319):GetData.cpp: undefined reference to `connect@12'
> > <mailto:`connect@12'>
> > These functions are all in <winsock2> and the documentation says they
> > need to be linked to ws2_32.lib. I didn't find such a file on my system,
> > but downloaded one from http://www-etsi2.ugr.es/download/CVIPtools/. But
> > I can't find where to locate it so that g++ will find it.
> >
> > If anyone can help me, I'd be eternally grateful.
> >
>
> Gcc uses a library name in the form of libfoo.a and not foo.lib.
> Therefore you have the winsock2 librarin as libws2_32.a.  Now all you
> need to do is to tell Gcc and ld to use it.  You can do that by adding
> -lws2_32 to the link flags.
>
> Earnie.
>