fix perror POSIX compliance

[Corinna Vinschen]

On May 23 17:28, Eric Blake wrote:
> This depends on the newlib patch:
> http://sourceware.org/ml/newlib/2011/msg00215.html
> 
> In fact, if that patch goes in, then this one is required to avoid a
> link failure; this one can probably go in first but makes no difference
> to perror without the newlib patch.

You can apply this together with the newlib patch.  But please
make sure that you also tested the newlib-only implementation.


Thanks,
Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat