(docref-last-active-buffer): Add defvar.

diff --git a/lisp/docref.el b/lisp/docref.el
index a10d7e486aa1cfaac3e26976f0c78afcc6522f2b..2a7b2a65b6853edce41230dfb2b2dcc28c0e6ace 100644 (file)
--- a/lisp/docref.el
+++ b/lisp/docref.el
@@ -89,6 +89,8 @@ to be called to find this reference.")
 The value specifies how to go back.  It should be suitable for use
 as the second argument to \\(f@docref-insert-label).
 \\(f@docref-subst) uses this to set up the go-back reference.")
+
+(defvar docref-last-active-buffer)
 \f
 ;;;###autoload
 (defun docref-setup ()