bug#29350: 25.2; Emacs 25.3+ fails to start on Windows XP

[Eli Zaretskii]

> From: Uwe Siart <uwe.siart@tum.de>
> Date: Sat, 18 Nov 2017 11:46:08 +0100
> 
> Emacs 25.3 and newer fails to start on a Win XP box. When clicking
> runemacs.exe I get an error that says that the procedure call "_time32"
> fails in msvcrt.dll.
> 
> I don't see this with Emacs 25.2.
> 
> I got that issue with
> 
> ftp://ftp.gnu.org/gnu/emacs/windows/emacs-25.3-i686.zip
> 
> and also with
> 
> ftp://alpha.gnu.org/gnu/emacs/pretest/windows/emacs-26-snapshot-x86_64.zip
> 
> and
> 
> ftp://alpha.gnu.org/gnu/emacs/pretest/windows/emacs-27/emacs-27.0.50-snapshot-i686.zip

I'm guessing this is because MinGW64, whose headers and libraries are
used to produce the 32-bit builds of Emacs on Windows, dropped the XP
support some time ago.  FWIW, mingw.org's MinGW still supports XP (and
also Windows 9x), and we didn't decide to drop XP support in Emacs
yet.