Guard set-fontset-font with display-graphic-p

set-fontset-font is unavailable in terminal-only Emacs builds,
so calling it unconditionally causes a void-function error in
console mode.

Author: bbatsov

core/prelude-macos.el

@@ -60,7 +60,8 @@ Windows external keyboard from time to time."
 (menu-bar-mode +1)
 
 ;; Enable emoji, and stop the UI from freezing when trying to display them.
-(set-fontset-font t 'unicode "Apple Color Emoji" nil 'prepend)
+(when (display-graphic-p)
+  (set-fontset-font t 'unicode "Apple Color Emoji" nil 'prepend))
 
 
 (provide 'prelude-macos)