[RFA] Fix GDB build failure on Windows

[Joel Brobecker]

Hi Pedro,

> I had already pushed a patch to fix this:
> <https://sourceware.org/ml/gdb-patches/2018-06/msg00583.html> 
> which just restores the old behavior, but I'm fine with your
> patch too.

Thanks for doing that. I looked at your patch, and it looks good
to me. In fact, the second half looks better, as far as I can tell.
So I'm withdrawing this patch.

-- 
Joel