Use Segoe UI Symbol font for Win7.

data/meson.build

@@ -3,6 +3,11 @@ if get_option('plugin')
 endif
 
 if get_option('gtk-frontend')
+  # The bundled emoji font ships only with Windows builds; Linux and other
+  # Unix systems use the system emoji font package instead.
+  if host_machine.system() == 'windows'
+    subdir('fonts')
+  endif
   subdir('icons')
   subdir('misc')
   subdir('man')