(mode-line-mule-info): In computing help-echo prop,

avoid using save-window-excursion.  And compile the function.

1 files changed, 10 insertions, 12 deletions

diff --git a/lisp/bindings.el b/lisp/bindings.el
index 4135cf1c187..2d22d2b2f9d 100644
--- a/lisp/bindings.el
+++ b/lisp/bindings.el
@@ -149,18 +149,16 @@ corresponding to the mode line clicked."
     ,(propertize
       "%Z"
       'help-echo
-      (purecopy (lambda (window object point)
-                  (save-window-excursion
-                    (select-window window)
-                    ;; Don't show this tip if the coding system is nil,
-                    ;; it reads like a bug, and is not useful anyway.
-                    (when buffer-file-coding-system
-                      (if enable-multibyte-characters
-                          (concat (symbol-name buffer-file-coding-system)
-                                  " buffer; mouse-3: describe coding system")
-                        (concat "Unibyte "
-                                (symbol-name buffer-file-coding-system)
-                                " buffer"))))))
+      #'(lambda (window object point)
+          (with-current-buffer (window-buffer window)
+            ;; Don't show this tip if the coding system is nil,
+            ;; it reads like a bug, and is not useful anyway.
+            (when buffer-file-coding-system
+              (if enable-multibyte-characters
+                  (concat (symbol-name buffer-file-coding-system)
+                          " buffer; mouse-3: describe coding system")
+                (concat "Unibyte " (symbol-name buffer-file-coding-system)
+                        " buffer")))))
       'local-map mode-line-coding-system-map))
   "Mode-line control for displaying information of multilingual environment.
 Normally it displays current input method (if any activated) and