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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Status of multicolor fonts?
Date: Wed, 24 Apr 2019 09:34:13 +0300
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To: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
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In-reply-to: <wlh8ao12ym.wl-mituharu@math.s.chiba-u.ac.jp> (message from
	YAMAMOTO Mitsuharu on Wed, 24 Apr 2019 12:45:05 +0900)
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> Date: Wed, 24 Apr 2019 12:45:05 +0900
> From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> 
> > I've just disabled it.  Let's re-enable it when the above happens.
> 
> Now the cairo build on master can display multicolor font if linked
> with cairo >= 1.16.0.
> 
>   (set-fontset-font t #x1f600 (font-spec :family "Noto Color Emoji"))
>   (insert #x1f600)

I think this should be mentioned in the manual and in NEWS.

> Does it count as multicolor font support on free platforms?

I think it does, yes.  Thanks for working on this.

As long as I have your attention: could you please help in finishing
the development of the harfbuzz branch and landing it on master?  For
Posix platforms, there are just a few finishing touches left, I think,
the main one being make a separate font backend that uses HarfBuzz
interfaces for as many backend facilities as possible (I will tell the
details if you can offer help).  I'd appreciate help in this area.
TIA.