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Re: Pure space overflows


From: Eli Zaretskii
Subject: Re: Pure space overflows
Date: Sat, 22 Jan 2022 13:13:14 +0200

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Sat, 22 Jan 2022 19:02:49 +0800
> 
> > See src/conf_post.h.
> 
> I wonder if the following code being under an MSDOS conditional is an
> oversight, since it mentions GNU/Linux:
> 
>   #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.)



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