GNU bug report logs - #39823
26.3; update-directory-autoloads regression from Emacs 26 to Emacs 27

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Message #53 received at 39823 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Noam Postavsky <npostavs <at> gmail.com>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 39823 <at> debbugs.gnu.org, rms <at> gnu.org
Subject: Re: bug#39823: 26.3;
 update-directory-autoloads regression from Emacs 26 to Emacs 27
Date: Mon, 22 Jun 2020 00:10:04 -0400

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

Hello Noam,

Noam Postavsky <npostavs <at> gmail.com> writes:

> Maxim Cournoyer <maxim.cournoyer <at> gmail.com> writes:
>
>> (defun update-directory-autoloads (&rest dirs)
>>
>> I don't see how &key can be combined with &rest without potentially
>> causing problems.
>
> You can check if the first arg is a keyword like
> :generated-autoload-file (which can't be a directory, since it's not a
> string), and if it is, then handle the second arg specially.

I've given this idea a try with the attached patch.  For some reason I
can't seem to simply eval the definition to test it (Debugger
entered--Lisp error: (void-function byte-compile-info-string).  I'm
rebuilding Emacs with the change right now.

Consider it untested for now.

[0001-lisp-autoload.el-Add-a-keyword-argument-to-update-di.patch (text/x-patch, attachment)]

[Message part 3 (text/plain, inline)]

Thank you!

Maxim

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