bug#17036: Continuation for Emacs: invoking a process on exit?

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: rgm@gnu.org,  17036@debbugs.gnu.org,  schwab@linux-m68k.org,  rrt@sc3d.org
> Date: Sun, 17 Apr 2022 18:02:15 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Btw, calling 'error' in this place, which we also do on Posix
> > platforms, is not very useful: this is past the call to
> > shut_down_emacs, so all 'error' does at this point is exit with an
> > error status, and the error message is lost.  Something to keep in
> > mind, I guess.
> 
> It prints the error message OK on Debian, at least, but I guess
> emacs_perror is the function to use here?

I guess so.  Although that will be lost as well if Emacs is invoked as
a GUI program from some desktop shortcut or in some other fancy way
which redirects the standard handles to the great void...