(auto-save-hook): Defvar this.

diff --git a/lisp/files.el b/lisp/files.el
index 114d45d9dbefd179a30d0cf584c6222d389016d6..28afd60963f48ba88dbc93bd9ad567ceb27c5e78 100644 (file)
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2258,6 +2258,9 @@ the last real save, but optional arg FORCE non-nil means delete anyway."
           (file-error nil))
         (set-buffer-auto-saved))))
 
+(defvar auto-save-hook nil
+  "Normal hook run just before auto-saving.")
+
 (defvar after-save-hook nil
   "Normal hook that is run after a buffer is saved to its file.")