bug#50453: 27.2; Portable dumper broken on MSW

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  Daniel Colascione <dancol@dancol.org>,
>   50453@debbugs.gnu.org
> Date: Fri, 26 Aug 2022 09:05:57 +0800
> 
> Lars Ingebrigtsen <larsi@gnus.org> writes:
> 
> > If I understand correctly, the reported bug here was fixed
> 
> Well, unfortunately not on Emacs 28.
> 
> The unexec build works on Windows 9x, so it's not a very bad problem.

Sorry, I don't understand: the change which uses the flags as needed
for Windows 9X is on the emacs-28 branch, and you said in
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50453#50 that with that
change Emacs starts up on Windows 98.  So what are the problems that
remain to be fixed here?