Support Noto Emoji font as fallback

The black-and-white emoji font is back under active development,
see https://github.com/googlefonts/noto-emoji.  So this adds
that font as fallback for systems that don't have the capability
of using color fonts.
* lisp/international/fontset.el (setup-default-fontset): Support
black-and-white Noto Emoji font as fallback for Emoji display.

diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 4e44de27ce98564209941a27876656fbf5accc51..99c78487046e89e8b64d494c374fa5a00683c0cc 100644 (file)
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -982,7 +982,11 @@
     (set-fontset-font "fontset-default" symbol-subgroup
                       "-*-fixed-medium-*-*-*-*-*-*-*-*-*-iso10646-1"
                       nil 'prepend))
-  ;; This sets up the Emoji codepoints to use prettier fonts.
+  ;; This sets up the Emoji codepoints to use prettier fonts:
+  ;;  this is fallback, if they don't have color Emoji capabilities...
+  (set-fontset-font "fontset-default" 'emoji
+                    '("Noto Emoji" . "iso10646-1") nil 'prepend)
+  ;;  ...and this is if they do
   (set-fontset-font "fontset-default" 'emoji
                     '("Noto Color Emoji" . "iso10646-1") nil 'prepend)