GNU bug report logs - #14704
24.3.50; cl-lib breaks built-in Emacs version

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#14704: closed (24.3.50; cl-lib breaks built-in Emacs version)
Date: Tue, 25 Jun 2013 16:28:02 +0000

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Your message dated Tue, 25 Jun 2013 12:27:39 -0400
with message-id <jwvd2rab1he.fsf-monnier+emacs <at> gnu.org>
and subject line Re: bug#14704: 24.3.50; cl-lib breaks built-in Emacs version
has caused the debbugs.gnu.org bug report #14704,
regarding 24.3.50; cl-lib breaks built-in Emacs version
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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14704: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=14704
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Contact help-debbugs <at> gnu.org with problems

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From: Sebastian Wiesner <lunaryorn <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; cl-lib breaks built-in Emacs version
Date: Mon, 24 Jun 2013 17:30:47 +0200

"(require 'cl-lib)" breaks the Emacs version information for
package.el.  In "emacs -Q", "M-x ielm":

ELISP> (package-initialize)
t
ELISP> (package-built-in-p 'emacs (version-to-list "24.1"))
t
ELISP> (assq 'emacs package--builtin-versions)
(emacs 24 3 50)

ELISP> (require 'cl-lib)
cl-lib
ELISP> (package-built-in-p 'emacs (version-to-list "24.1"))
nil
ELISP> (assq 'emacs package--builtin-versions)
(emacs 2 2)

This breaks dependency resolution for packages which depend against a
certain Emacs version.

These incorrect entries in package--builtin-versions come from
"cl-loaddefs.el", which contains two instances of the following line:

(push (purecopy (quote (emacs 2 2))) package--builtin-versions)

These lines are apparently extracted from the package headers of
"cl-macs.el" and "cl-seq.el" which look like the following:

;; Author: Dave Gillespie <daveg <at> synaptics.com>
;; Version: 2.02
;; Keywords: extensions
;; Package: emacs

This meta information is obviously wrong.

This is the 3rd critical package.el bug I discovered within just a week
or so.  Don't you test your code?!

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Sebastian Wiesner <lunaryorn <at> gmail.com>
Cc: 14704-done <at> debbugs.gnu.org
Subject: Re: bug#14704: 24.3.50; cl-lib breaks built-in Emacs version
Date: Tue, 25 Jun 2013 12:27:39 -0400

ELISP> (require 'cl-lib)
> cl-lib
ELISP> (package-built-in-p 'emacs (version-to-list "24.1"))
> nil
ELISP> (assq 'emacs package--builtin-versions)
> (emacs 2 2)

Thanks, should be fixed now,


        Stefan

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