bug#67810: 29.1; fonts use synthetic bold on Linux / pgtk

[Eli Zaretskii <eliz@gnu.org>]

> From: Po Lu <luangruo@yahoo.com>
> Cc: crypto@timruffing.de,  stefankangas@gmail.com,  67810@debbugs.gnu.org
> Date: Sun, 14 Jan 2024 09:02:17 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Po Lu <luangruo@yahoo.com>
> >> Cc: crypto@timruffing.de,  stefankangas@gmail.com,  67810@debbugs.gnu.org
> >> Date: Sat, 13 Jan 2024 08:46:28 +0800
> >> 
> >> Eli Zaretskii <eliz@gnu.org> writes:
> >> 
> >> > Sorry, I don't understand what you are saying here.  Could you please
> >> > say it in simpler words?  What are "icon fonts"? and what do you mean
> >> > by "it can be removed"?
> >> 
> >> Fonts designed to provide symbol icons, which are inserted by packages
> >> that can control the `face' property of the text inserted.  Such fonts
> >> don't provide bold variants, and they did prompt this bug report.
> >
> > So you are talking about fonts that use PUA codepoints to show icons?
> > Or are you talking about fonts whose glyphs for "normal" characters
> > (i.e. characters defined by the Unicode Standard) are replaced with
> > icons that look similarly?
> 
> The former, yes.

OK, so what is the problem with allowing those users to have the
variable I proposed, for use with such fonts?