(current-language-environment-custom-type): Return a sorted list.

1 files changed, 5 insertions, 3 deletions

diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index 3d824de6b46..ed4e23497d1 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -1490,9 +1490,11 @@ This hook is mainly used for canceling the effect of
 (defun current-language-environment-custom-type ()
   "Return a custom type for `current-language-environment'.
 This is based on `language-info-alist'."
-  (cons 'choice (mapcar (lambda (lang)
-                          (list 'const (car lang)))
-                        language-info-alist)))
+  (cons 'choice (mapcar
+                 (lambda (lang)
+                   (list 'const (car lang)))
+                 (sort (copy-sequence language-info-alist)
+                       (lambda (x y) (string< (car x) (car y)))))))
 
 (defcustom current-language-environment "English"
   "The last language environment specified with `set-language-environment'.