bin2res - Make adding resources work on Windows.

[Dmitry Timoshkov]

"Martin Fuchs" <martin-fuchs at gmx.net> wrote:

> The error does not occure when build with cygwin.
> It's displayed only when build with MinGW:
> 
> Processing failed: File exists

Thanks. Now I see the cause of that: 'rename' will fail
if the target already exists.

-- 
Dmitry.