Re: Display of undisplayable characters: \U01F3A8 instead of diamond

[Eli Zaretskii]

> Date: Sun, 28 Aug 2022 15:18:12 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: acm@muc.de, rms@gnu.org, emacs-devel@gnu.org
> 
> >> "linux"
> >
> > Ouch! that's bed -- it means the change I installed on the release 
> > branch will affect fbterm as well, while it ideally shouldn't.
> >
> > Any idea whether there's an easy way of distinguishing between those 
> > two?
> 
> I don't know, I did not (yet?) find a way to distinguish them.  One 
> difference is that the "tty" command returns "/dev/ttyN" in a raw terminal 
> and "/dev/pts/N" inside fbterm, but that's not reflected in Emacs' 
> (frame-parameters): (cdr (assq 'tty (frame-parameters))) is "/dev/tty" in 
> both cases.

Well, maybe the situation is not that bad, actually: we'll just waste
some cycles at info.el startup, to find that all the necessary
characters are supported if the terminal is fbterm.

Thanks.