FYI: compiler warning fixes for cygwin

[Ralf Wildenhues]

Hi Eric,

* Eric Blake wrote on Fri, Sep 23, 2005 at 04:00:06AM CEST:
> 
> Compiling with -Wall -Werror often turns up some interesting bugs.  The
> whitespace in this file is also a bit screwy, according to emacs
> whitespace mode.

Thanks a lot for this patch!

> 2005-09-22  Eric Blake  <address@hidden>  (tiny change)
> 
>       * libltdl/loaders/loadlibrary.c (vm_open): Silence gcc warnings.
>       [__CYGWIN__]: Include <sys/cygwin.h> for prototype.

Applied to CVS HEAD.

Cheers,
Ralf