bug#73363: 30.0.91; CJK Font Rendering Behavior Changed

[Eli Zaretskii <eliz@gnu.org>]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: luangruo@yahoo.com,  tomohisa.kuranari@gmail.com,  73363@debbugs.gnu.org
> Date: Fri, 20 Sep 2024 13:07:05 +0200
> 
> >>>>> On Fri, 20 Sep 2024 13:29:21 +0300, Eli Zaretskii <eliz@gnu.org> said:
> 
>     >> From: Robert Pluim <rpluim@gmail.com>
>     >> Cc: Po Lu <luangruo@yahoo.com>,  tomohisa.kuranari@gmail.com,
>     >> 73363@debbugs.gnu.org
>     >> Date: Fri, 20 Sep 2024 10:44:19 +0200
>     >> 
>     >> >>>>> On Fri, 20 Sep 2024 09:27:40 +0300, Eli Zaretskii <eliz@gnu.org> said:
>     >> 
>     >> >> From: Po Lu <luangruo@yahoo.com>
>     >> >> 
>     >> >> Could it be 1727777a (a Git revision)?  Would the OP try reverting it?
>     >> 
>     Eli> That's the only font-related change I found there, yes.
>     >> 
>     >> Reverting that gets me back "PingFang SC" on emacs-30 on macOS,
>     >> specifically:
>     >> 
>     >> "-*-PingFang SC-regular-normal-normal-*-12-*-*-*-p-0-iso10646-1"
> 
>     Eli> What do you mean by "gets back"?  The OP cited a different font for
>     Eli> Emacs 29.
> 
> I had PingFang with emacs-29. I do have Hiragino Sans installed, so
> thatʼs another potential issue.

Is PingFang supposed to be installed on GNU/Linux systems?  Or did you
install it your self (or maybe it's in some optional package people
usually don't install)?