bug#21682: 25.0.50; display bug

[Eli Zaretskii]

> From: Andreas Schwab <schwab@suse.de>
> Cc: Kenichi Handa <handa@gnu.org>,  rms@gnu.org,  21682@debbugs.gnu.org
> Date: Thu, 15 Oct 2015 19:07:05 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Andreas Schwab <schwab@suse.de>
> >> Date: Thu, 15 Oct 2015 09:04:24 +0200
> >> Cc: 21682@debbugs.gnu.org
> >> 
> >> Richard Stallman <rms@gnu.org> writes:
> >> 
> >> > Emacs needs to cope with it, unless we can get it fixed.
> >> 
> >> Emacs cannot know how characters are drawn on a tty.
> >
> > Does that mean you understood what causes Richard's problem?  If so,
> > can you explain?
> 
> The terminal has to support composition.  The Linux console doesn't.

Ah, I see, thanks.

So maybe we should only turn on auto-composition-mode in
terminal-specific files like term/xterm.el?