From: Alan Mackenzie <acm@muc.de>
To: 6740@debbugs.gnu.org
Subject: bug#6740: Spurious byte compiler warnings
Date: Tue, 27 Jul 2010 20:06:19 +0000 [thread overview]
Message-ID: <20100727200619.GC2280@muc.de> (raw)
Hi, Emacs!
(i) Start Emacs, even a most recent bzr version, with -Q.
(ii) Put the following into the *scratch* buffer:
(eval-when-compile
(if (and (not (featurep 'cc-fix))
(featurep 'xemacs)
(progn
(require 'font-lock)
(let (font-lock-keywords)
(font-lock-compile-keywords '("\\<\\>"))
font-lock-keywords)))
(cc-load "cc-fix")))
(This fragment is at the top level, and taken from cc-defs.el.).
(iii) do M-x compile-defun on this form.
The byte compiler then issues the following two identical error
messages:
Warning: value returned from (featurep (quote cc-fix)) is unused
Warning: value returned from (featurep (quote cc-fix)) is unused
It is obvious that that value is indeed used. This is a bug.
--
Alan Mackenzie (Nuremberg, Germany).
next reply other threads:[~2010-07-27 20:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-27 20:06 Alan Mackenzie [this message]
2010-07-27 20:26 ` bug#6740: Spurious byte compiler warnings Dan Nicolaescu
2010-07-27 21:23 ` Alan Mackenzie
2010-07-27 22:57 ` Juanma Barranquero
2010-07-28 17:49 ` Alan Mackenzie
2010-07-28 17:56 ` Juanma Barranquero
2010-07-28 19:45 ` Alan Mackenzie
2010-07-28 19:54 ` Juanma Barranquero
2010-07-28 23:00 ` Dan Nicolaescu
2010-07-29 20:24 ` Alan Mackenzie
2010-07-29 20:36 ` Juanma Barranquero
2010-07-27 21:40 ` Stefan Monnier
2020-11-19 4:25 ` Stefan Kangas
2020-11-24 6:40 ` Lars Ingebrigtsen
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