GNU bug report logs - #63103
30.0.50; nconc compiler optimization breaks user packages

Previous Next

Package: emacs;

Reported by: Maks <mvproton <at> gmail.com>

Date: Thu, 27 Apr 2023 04:17:04 UTC

Severity: normal

Merged with 63100, 63101

Found in version 30.0.50

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

Full log

Message #11 received at 63103 <at> debbugs.gnu.org (full text, mbox):

From: Philip Kaludercic <philipk <at> posteo.net>
To: Daniel Mendler <mail <at> daniel-mendler.de>
Cc: 63103 <at> debbugs.gnu.org
Subject: Re: bug#63103: 30.0.50; nconc compiler optimization breaks user
 packages
Date: Thu, 27 Apr 2023 05:44:24 +0000

Daniel Mendler <mail <at> daniel-mendler.de> writes:

> The problem is that `(nconc list nil)` is optimized to `list`. However
> improper lists like `(a b c . 0)` should be turned into `(a b c)`.

Where is this behaviour documented?

> Daniel
This bug report was last modified 2 years and 86 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.