GNU bug report logs -
#53014
27.2; `cl-macs.el' no longer provides `cl-macs'
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Reported by: Drew Adams <drew.adams <at> oracle.com>
Date: Tue, 4 Jan 2022 21:15:02 UTC
Severity: minor
Tags: notabug, wontfix
Found in version 27.2
Done: Glenn Morris <rgm <at> gnu.org>
Bug is archived. No further changes may be made.
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Report forwarded
to
bug-gnu-emacs <at> gnu.org
:
bug#53014
; Package
emacs
.
(Tue, 04 Jan 2022 21:15:02 GMT)
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Acknowledgement sent
to
Drew Adams <drew.adams <at> oracle.com>
:
New bug report received and forwarded. Copy sent to
bug-gnu-emacs <at> gnu.org
.
(Tue, 04 Jan 2022 21:15:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
Presumably a design bug, i.e., intentional.
Until Emacs 27, code could use this to load the macros defining things
like `cl-case' (which has l o n g been aliased to `case', and which
should even be in Emacs Lisp itself, as is `push'):
(eval-when-compile (require 'cl-macs))
Emacs 27 breaks that. Now, if you need only CL macros, you need to
require `cl-lib.el' instead. So any library that needs something like
`case', and needs to support both Emacs 27+ and older Emacs versions,
needs to jump through a hoop such as this (or another, using
`load-library'):
(eval-when-compile
(require (if (< emacs-major-version 27) 'cl-macs 'cl-lib)))
Gratuitous bother. Or was there some real need for introducing the
incompatibility?
In GNU Emacs 27.2 (build 1, x86_64-w64-mingw32)
of 2021-03-26 built on CIRROCUMULUS
Repository revision: deef5efafb70f4b171265b896505b92b6eef24e6
Repository branch: HEAD
Windowing system distributor 'Microsoft Corp.', version 10.0.19042
System Description: Microsoft Windows 10 Pro (v10.0.2009.19042.1348)
Added tag(s) wontfix and notabug.
Request was from
Glenn Morris <rgm <at> fencepost.gnu.org>
to
control <at> debbugs.gnu.org
.
(Wed, 05 Jan 2022 01:30:02 GMT)
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Reply sent
to
Glenn Morris <rgm <at> gnu.org>
:
You have taken responsibility.
(Wed, 05 Jan 2022 01:30:02 GMT)
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Notification sent
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Drew Adams <drew.adams <at> oracle.com>
:
bug acknowledged by developer.
(Wed, 05 Jan 2022 01:30:02 GMT)
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Message #12 received at 53014-done <at> debbugs.gnu.org (full text, mbox):
There are several misconceptions in this report.
cl-macs.el continues to provide cl-macs, as it always has done.
Loading internal sub-components of cl-lib has always been discouraged.
The way to use cl-lib continues to be to (require 'cl-lib).
Code needing only macros can add eval-when-compile to that.
This is documented in the usage node of the cl manual.
(This was explained 6 years ago in bug#22291.)
bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
to
internal_control <at> debbugs.gnu.org
.
(Wed, 02 Feb 2022 12:24:05 GMT)
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This bug report was last modified 2 years and 80 days ago.
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