bug#68464: 30.0.50; autogen.sh creating modified files in build-aux with Autoconf 2.72

[Eli Zaretskii]

> From: Pierre Téchoueyres <pierre.techoueyres@free.fr>
> Cc: Andreas Schwab <schwab@linux-m68k.org>,  gerd.moellmann@gmail.com,
>   68464@debbugs.gnu.org
> Date: Tue, 16 Jan 2024 21:24:37 +0100
> 
> >> From: Andreas Schwab <schwab@linux-m68k.org>
> >> Cc: Eli Zaretskii <eliz@gnu.org>,  Gerd Möllmann
> >>  <gerd.moellmann@gmail.com>,
> >>   68464@debbugs.gnu.org
> >> Date: Mon, 15 Jan 2024 22:13:59 +0100
> >> 
> >> If you want to update config.sub and config.guess you should copy them
> >> verbatim from the config project, not edit them randomly.
> >
> > Right.  We don't maintain these files, so the changes, if they are
> > needed, should be submitted to their upstream.
> >
> 
> So, I've used the latest ones availables on 
> https://git.savannah.gnu.org/cgit/config.git/
> And updated the patch consequently.
> 
> This should prevent their overwritting by autoreconf.

Thanks.

Paul, is this version okay to install on our master branch?