bug#54970: 28.1; Some emoji no longer display

[Eli Zaretskii]

> From: Howard Melman <hmelman@gmail.com>
> Date: Sat, 16 Apr 2022 12:21:20 -0400
> Cc: Lars Ingebrigtsen <larsi@gnus.org>, 54970@debbugs.gnu.org
> 
> >    (set-fontset-font t 'symbol "Apple Color Emoji")
> > 
> > Please let us know if that makes any difference.
> 
> As I said in my initial report, that (or something similar) did solve it for 
> me.
> 
> But the NEWS report said to do this:
> 
>     (set-fontset-font t 'emoji
>                       '("My New Emoji Font" . "iso10646-1") nil 'prepend)
> 
> Which did not work for me, but this did:
> 
>     (set-fontset-font t 'symbol
>                      '("Apple Color Emoji" . "iso10646-1") nil 'prepend)

That's because we don't want to advertise the (non-free) Apple font.

> I'm not clear about what the iso10646-1 part does or if it's needed.  

It makes the setting work more reliably in this case.