GNU bug report logs - #18014
24.3; Unused Lexical argument warning, when argument is used in a function...

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Package: emacs;

Reported by: Matthew Fidler <matthew.fidler <at> gmail.com>

Date: Mon, 14 Jul 2014 12:27:01 UTC

Severity: minor

Tags: notabug

Found in version 24.3

Done: Noam Postavsky <npostavs <at> users.sourceforge.net>

Bug is archived. No further changes may be made.

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From: Matthew Fidler <matthew.fidler <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 18014 <at> debbugs.gnu.org
Subject: bug#18014: 24.3; Unused Lexical argument warning, when argument is used in a function...
Date: Mon, 14 Jul 2014 14:46:04 -0500

[Message part 1 (text/plain, inline)]
Easy enough.  Put these in a directory, say ~/emacs-bug-1801 and run the
following command:

emacs -Q --batch -L . --eval             \
     "(progn                                \
       (setq byte-compile-error-on-warn t)  \
       (batch-byte-compile))" *.el


On Emacs 24.3 the following warning will occur:

In toplevel form:
bug.el:10:1:Warning: Unused lexical argument `key' *<<--- Incorrect; key is
a used lexical argument*
Wrote e:/EmacsPortable.App/Data/src/ergoemacs-mode/bug.elc
In toplevel form:
bug2.el:10:1:Warning: argument `_key' not left unused
*<<--- Correct; _key is a used lexical argument*Wrote
e:/EmacsPortable.App/Data/src/ergoemacs-mode/bug2.elc

Also on emacs 24.3, even though batch-byte-compile-error-on-warn is set to
t, it will ignore the errors, which is not what I expect when I set this
option.
On Emacs trunk (24.4) it will not ignore the error but cause the make to
fail.

Matt



Type the following




On Mon, Jul 14, 2014 at 11:18 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:

> > Date: Mon, 14 Jul 2014 11:01:12 -0500
> > From: Matthew Fidler <matthew.fidler <at> gmail.com>
> > Cc: 18014 <at> debbugs.gnu.org
> >
> > You probably downloaded the version with lexical binding disabled.
> >
> > Sorry, I should have linked to the version with lexical binding enabled.
>
> So how about posting a complete, self-contained recipe that could be
> used to reproduce the problem?
>
> TIA
>

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This bug report was last modified 9 years and 47 days ago.

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