Re: Pure space overflows

[Eli Zaretskii]

> Date: Sat, 22 Jan 2022 13:13:14 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: emacs-devel@gnu.org
> 
> >   #ifdef HAVE_X_WINDOWS
> >   /* We need a little extra space, see ../../lisp/loadup.el and the
> >      commentary below, in the non-X branch.  The 140KB number was
> >      measured on GNU/Linux and on MS-Windows.  */
> >   #define SYSTEM_PURESIZE_EXTRA (-170000+140000)
> 
> No, not an oversight.  This is for a MS-DOS build with X support.
> (Yes, we actually had that at some point, and we still have *.inp
> files in the msdos/ directory to support it, although I'd be very
> surprised if such a build could be made today.)

See the --with-x option to config.bat.