GNU bug report logs - #29165
26.0.90; can't use some code byte-compiled under emacs 24

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Message #43 received at 29165 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Ken Raeburn <raeburn <at> permabit.com>
Cc: 29165 <at> debbugs.gnu.org, Philipp Stephani <p.stephani2 <at> gmail.com>,
 Andreas Schwab <schwab <at> linux-m68k.org>
Subject: Re: bug#29165: 26.0.90;
 can't use some code byte-compiled under emacs 24
Date: Mon, 13 Nov 2017 13:06:42 -0500

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

On Mon, Nov 6, 2017 at 2:16 PM, Noam Postavsky
<npostavs <at> users.sourceforge.net> wrote:
> On Mon, Nov 6, 2017 at 2:10 PM, Ken Raeburn <raeburn <at> permabit.com> wrote:
>
>> It appears that the emacs-26 version of defun* is happy with it (the
>> original Lisp code I posted, using &optional &key) as well, as long as I
>> provide the source, or a byte-compiled file from Emacs 25 or 26
>
> It looks like the cl-defun in newer Emacs throws away the &optional
> for you in this case.

I think we should make cl-defun reject this kind of code, to be
consistent with plain defun. See attached.

[v1-0001-Mention-new-strictness-for-optional-rest-in-argli.patch (application/octet-stream, attachment)]

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