bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: shingo.fg8@gmail.com,  65803@debbugs.gnu.org
> Date: Sun, 10 Sep 2023 15:55:56 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > So you think it's okay to do the same in the w32 font backend,
> > i.e. take the average width from the font when the font is known to be
> > fixed-pitch?  If not, please elaborate, because that's what I
> > understand from what you wrote above.
> 
> I don't think it's okay, because the W32 font backend judges fonts that
> are not fixed pitch to be so; Noto Sans Mono CJK JP, for example.

How do you know that Noto Sans Mono CJK JP is handled as fixed-pitch
font by the w32 backend?  If you actually tried that with the
MS-Windows build, please tell how you saw it being handled as
fixed-pitch.