From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.bugs Subject: bug#50148: 27.2; `C-h v' for option doesn't say it's an option Date: Sat, 21 Aug 2021 16:10:27 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20582"; mail-complaints-to="usenet@ciao.gmane.io" To: 50148@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Aug 21 18:11:12 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mHTaR-000575-Hx for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 21 Aug 2021 18:11:11 +0200 Original-Received: from localhost ([::1]:58342 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mHTaP-0003Q6-Lc for geb-bug-gnu-emacs@m.gmane-mx.org; 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envelope-from=drew.adams@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:212374 Archived-At: 1. emacs -Q 2. Evaluate this code: (defvaralias 'new-foo 'old-foo) (make-obsolete-variable 'old-foo 'new-foo "2021-08-21") (defcustom new-foo 42 "..." :type 'integer :group 'convenience) 3. C-h v new-foo Buffer *Help* shows only this: new-foo's value is 42 This variable is an alias for 'old-foo'. Documentation: ... It doesn't say that `new-foo' is a user option. There's no link to Customize for it. That's the bug. ___ You may say that what should have been used is `define-obsolete-variable-alias', instead of `defvaralias' and `make-obsolete-variable': (define-obsolete-variable-alias 'old-foo 'new-foo "2021-08-21") (defcustom new-foo 42 "..." :type 'integer :group 'convenience) And yes, if that's used then there's no such bug. But my use case is to allow the result of byte compilation with older Emacs versions to work also for newer versions. (Perhaps there is another way to ensure this - let me know. In any case, this seems like a bug to me - it seems like this should just work.) 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 (v10.0.2009.19042.1083)