I have tried the Symbola font from here:

http://users.teilar.gr/~g1951d/ <http://users.teilar.gr/~g1951d/>

starting emacs with Emacs -q -Q, it does not display the unicode char at all.

tried apply configuration:

(set-frame-font "Monaco:pixelsize=16")
(set-fontset-font
 (frame-parameter nil 'font) 'symbol (font-spec :family "Symbola") nil 'prepend)

The same, it does not work.



> 在 2016年4月25日，19:00，Eli Zaretskii <eliz@gnu.org> 写道：
> 
>> Date: Mon, 25 Apr 2016 19:33:33 +0900
>> From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
>> Cc: ptr.wang@gmail.com,
>>    23362@debbugs.gnu.org
>> 
>>> IOW, if the default setting works fine, is there some non-default
>>> setting we should be telling users to avoid, in order to have
>>> these
>>> symbols displayed (albeit without colors)?
>> 
>> Installing some third-party monochrome emoji fonts?  Unfortunately
>> I'm
>> not familiar with such fonts.
> 
> Symbola should do, and the default fontset already assigns the emoji
> block to it.  Are there any issues with Symbola on OS X?