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-rw-r--r--lisp/emacs-lisp/lmenu.el2
1 files changed, 2 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/lmenu.el b/lisp/emacs-lisp/lmenu.el
index eed3fbb662e..5bbccbbdab8 100644
--- a/lisp/emacs-lisp/lmenu.el
+++ b/lisp/emacs-lisp/lmenu.el
@@ -358,6 +358,8 @@ menu item called \"Item\" under the \"Foo\" submenu of \"Menu\"."
(car (find-menu-item (cdr so-far) (list (car rest))))))
(or menu
(let ((rest2 so-far))
+ (or rest2
+ (error "Trying to modify a menu that doesn't exist"))
(while (and (cdr rest2) (car (cdr rest2)))
(setq rest2 (cdr rest2)))
(setcdr rest2