GNU bug report logs - #10049
problems if buffer-local generated-autoload-file points to global autoload file

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: David Engster <deng <at> randomsample.de>
Subject: bug#10049: closed (Re: bug#10049: 24.0.91; Setting
 generated-autoload-file as local variable not working correctly)
Date: Fri, 18 Nov 2011 21:00:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#10049: problems if buffer-local generated-autoload-file points to global autoload file

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 10049 <at> debbugs.gnu.org.

-- 
10049: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=10049
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: David Engster <deng <at> randomsample.de>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 10049-close <at> debbugs.gnu.org
Subject: Re: bug#10049: 24.0.91;
	Setting generated-autoload-file as local variable not working
	correctly
Date: Fri, 18 Nov 2011 21:58:06 +0100

Glenn Morris writes:
> I think it is fixed now.

...and confirmed (again!) ;-)

Thanks!
David

[Message part 3 (message/rfc822, inline)]

From: David Engster <deng <at> randomsample.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.91; Setting generated-autoload-file as local variable not working
	correctly
Date: Mon, 14 Nov 2011 23:12:16 +0100

Recipe:

* Create file 'testautoload.el' in /home/whatever/test containing

--------------------
;;;###autoload
(defun testautoload-testfunc ())

;; Local variables:
;; generated-autoload-file: "foo.el"
;; End:
--------------------

* Now create autoload file using (all in one line)

emacs --batch -l autoload -f toggle-debug-on-error
   --eval '(setq generated-autoload-file "/home/whatever/test/foo.el")' 
   -f batch-update-autoloads /home/whatever/test

You'll see:
...
Wrote /home/whatever/test/foo.el
Making generated-autoload-file local to  *autoload-file* while let-bound!
Generating autoloads for testautoload.el...
Generating autoloads for testautoload.el...done
Saving file /home/void/test/foo.el...
Wrote /home/void/test/foo.el
(No changes need to be saved)

and the file foo.el will be generated (BTW, shouldn't the above
*autoload-file* better denote the actual file name?)

* Now simply call the above command again. You'll get:

Debugger entered--Lisp error: (wrong-type-argument listp "77d69bf537d61f438126776e130fef3d")
  time-less-p("77d69bf537d61f438126776e130fef3d" (20161 36303))
  update-directory-autoloads("/home/whatever/test")
  apply(update-directory-autoloads "/home/whatever/test")
  batch-update-autoloads()
[...]

This is due to the following autoload header in foo.el:

;;;### (autoloads (testautoload-testfunc) "testautoload" "testautoload.el"
;;;;;;  "77d69bf537d61f438126776e130fef3d")
;;; Generated autoloads from testautoload.el

where the md5-looking hex-string is obviously not a time.

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