GNU bug report logs - #12581
24.2.50: redo+ fails to modify edit menu

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Package: emacs;

Reported by: Konstantinos Efstathiou <konstantinos <at> efstathiou.gr>

Date: Fri, 5 Oct 2012 21:04:01 UTC

Severity: normal

Found in version 24.2.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Konstantinos Efstathiou <konstantinos <at> efstathiou.gr>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2.50: redo+ fails to modify edit menu
Date: Fri, 5 Oct 2012 23:00:43 +0200

In the latest versions from the repository it is impossible to load redo+.el
(version 1.15 available from ELPA). The command (require 'redo+)
fails with (error "Attempt to modify read-only object").

I have tracked this down to the command

(setcar (cdr (memq :enable (assq 'undo menu-bar-edit-menu))) nil)

that fails with the same error. Actually redo+ attempts to setcar to 
something else but obviously the problem is that for some reason

(car (cdr (memq :enable (assq 'undo menu-bar-edit-menu)))

is now read-only while it used to be modifiable.

Is this a bug or expected behavior? Should redo+ be modified?
This bug report was last modified 12 years and 317 days ago.

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