Bug in GNU Emacs display code

Bug in GNU Emacs display code

[Sam Lauber]

On DJGPP, with Emacs 21.3, it seems that if I hit C-x C-c 
before it gets to the splash screen, the exit handler code 
is not called, and the display is not reset.  If I do it 
after, it works normally.  This is (emacs-version):

"GNU Emacs 21.3 (i686-pc-msdosdjgpp optimized for Pentium 4)
 of 2005-02-28 on DELL"

(Note that it has the same problem for base i386.)

Samuel Lauber

P.S. I don't know if this is DOS-specific, but it's 
probably not.

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Re: Bug in GNU Emacs display code

[Eli Zaretskii]

> From: "Sam Lauber" <sam124@operamail.com>
> Date: Tue, 01 Mar 2005 05:39:30 +0100
> Cc: 
> 
> On DJGPP, with Emacs 21.3, it seems that if I hit C-x C-c 
> before it gets to the splash screen, the exit handler code 
> is not called, and the display is not reset.  If I do it 
> after, it works normally.  This is (emacs-version):
> 
> "GNU Emacs 21.3 (i686-pc-msdosdjgpp optimized for Pentium 4)
>  of 2005-02-28 on DELL"
> 
> (Note that it has the same problem for base i386.)
> 
> Samuel Lauber
> 
> P.S. I don't know if this is DOS-specific, but it's 
> probably not.

It _is_ specific to the DJGPP port, and it's actually a feature (that
was there since Emacs 20).  The feature is designed to not clear the
screen if Emacs exits too quickly after the session begins.  That's
because the absolute majority of such quick exits are actually crashes
during startup, and so it is very important to leave the screen
contents intact, because they include vital clues to the reasons of
the crash.

If this feature somehow got in your way, please tell the details;
perhaps we could change it a bit to not interfere with whatever you
were doing.