From: Drew Adams <drew.adams@oracle.com>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: 19424@debbugs.gnu.org
Subject: bug#19424: 23.4; incorrect byte-compiler warning for `mode-line-format'
Date: Sun, 21 Dec 2014 12:38:46 -0800 (PST) [thread overview]
Message-ID: <74731a31-a381-4df5-a22d-465660c28c19@default> (raw)
In-Reply-To: <863888ddws.fsf@yandex.ru>
> > Warning: `default-mode-line-format' is an obsolete variable
> > (as of Emacs 23.2); use `(default-value 'mode-line-format)'
> > instead.
>
> Why `default-value', but not `setq-default'?
Should be obvious: Because the intention of a given occurrence
of `default-mode-line-format' might not be to set the default
value of `mode-line-format'.
Consider code that used, for example:
(setq mode-line-format default-mode-line-format)
A reasonable update of that code would likely be
(setq mode-line-format (default-value 'mode-line-format))
That does not set the default value of `mode-line-format'.
next prev parent reply other threads:[~2014-12-21 20:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-21 17:23 bug#19424: 23.4; incorrect byte-compiler warning for `mode-line-format' Drew Adams
2014-12-21 19:02 ` Dmitry Gutov
2014-12-21 20:38 ` Drew Adams [this message]
2016-04-30 16:31 ` Lars Ingebrigtsen
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