Re: [Mingw-users] linker path does not have real file for library

[Keith M. <kei...@us...>]

On Friday 09 July 2010 11:14:22 Stefano Sabatini wrote:
> /bin/sh ../libtool --tag=CC   --mode=link gcc  -g -O2
> ...
> -lpthreadVC2 -lws2_32 -lwsock32
> ...
>
> *** Warning: linker path does not have real file for library
> -lpthreadVC2. 
> ...
>
> libpthread-dll is installed, and indeed I can see the file
> /mingw/bin/libpthread-2.dll.

But, you are not asking the linker to use this library; you are asking 
for libpthreadVC2.dll, which you presumably do not have.

> I have no clue about what the warnings message means with "real
> file for library".
>
> Help to interpret the message and possibly fix the failure is much
> appreciated.

We supply libpthread-2.dll as a prerequisite for GCC-4.5; if you want to 
link to it directly, you need -lpthread-2, not -lpthreadVC2.  Preferred 
is to install the complementary dev package, which provides the import 
library, libpthread.dll.a, which is selected by -lpthread:

-lpthreadVC2 -> libpthreadVC2.dll.a, (or libpthreadVC2.a)
-lpthread -> libpthread.dll.a, (or libpthread.a)

-- 
Regards,
Keith.