Re: Emacs build fails on Windows mingw64

[Eli Zaretskii]

> Cc: andrewjmoreton@gmail.com, bug-gnulib@gnu.org, emacs-devel@gnu.org
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Sun, 24 Oct 2021 08:25:29 -0400
> 
> > ntlib cannot include config.h,
> > due to various redefinitions and redirections we do in ms-w32.h for
> > Emacs.
> 
> I now see Emacs has a symbol DEFER_MS_W3_H to deal with this glitch. So 
> how about the attached patch instead? If it doesn't suffice, presumably 
> something like DEFER_MS_W3_H would suffice.

We could try all that, but not on the release branch.  There, I'd like
a simple and safe fix.  Is such a thing possible?

Can you explain why config.h is needed there, and why only for GCC 11?

Thanks.