bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A"

[Eli Zaretskii]

> From: Richard Stallman <rms@gnu.org>
> Cc: eliz@gnu.org, 41747@debbugs.gnu.org
> Date: Mon, 08 Jun 2020 22:38:32 -0400
> 
>   > There are probably other candidates.  For the purpose of this bug report
>   > however, GNU Unifont is the only free, readily available, and non-color
>   > option I have found for "Symbols and Pictographs Extended-A".
> 
>   > Since Emacs already uses that… SNAFU, I'd conclude.
> 
> Can someone explain to me why this constitutes failure, rather than success?

GNU Unifont is an ugly font that isn't really meant to replace a
proper True Type font.  It's meant to serve as the last fallback, so
that some glyph resembling the right one is displayed instead of a box
with a hex code or some similar stand-in.

Specifically, for displaying emoji it would be unimaginable, IMO, to
rely on Unifont as the solution.