From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Helmut Eller Newsgroups: gmane.emacs.bugs Subject: bug#8711: 24.0.50; binding _ to unused values with lexical-binding Date: Sat, 21 May 2011 20:44:18 +0200 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1306003511 8900 80.91.229.12 (21 May 2011 18:45:11 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 21 May 2011 18:45:11 +0000 (UTC) To: 8711@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat May 21 20:45:07 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QNrAh-00007J-CX for geb-bug-gnu-emacs@m.gmane.org; Sat, 21 May 2011 20:45:07 +0200 Original-Received: from localhost ([::1]:45121 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QNrAg-0001yt-IF for geb-bug-gnu-emacs@m.gmane.org; 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b=hkij+hiI3UlS4ixtvNzbS9jxcFyUPXEVLsGQEEK6c0AcdKIi6BbWq/MfvIyY1RG+cY 2pdF7s/MKP+swogeVJT3T2cWQ6vCJ3EwC+TI8ggE4NxDzYi3dm7hlKs1iOg09osn2Fl+ e1vWvCUNoQrGjju8qZPybzRMLp6piPiMptOg8= Original-Received: by 10.216.191.208 with SMTP id g58mr715457wen.85.1306003466676; Sat, 21 May 2011 11:44:26 -0700 (PDT) Original-Received: from ix ([212.46.168.133]) by mx.google.com with ESMTPS id s40sm2436810weq.4.2011.05.21.11.44.24 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 21 May 2011 11:44:25 -0700 (PDT) Original-Received: from helmut by ix with local (Exim 4.72) (envelope-from ) id 1QNr9u-0007cV-Ej for bug-gnu-emacs@gnu.org; Sat, 21 May 2011 20:44:18 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sat, 21 May 2011 14:45:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:46629 Archived-At: There seems be no way to avoid a warning in code like this: ;; -*- lexical-binding: t -*- (eval-when-compile (require 'cl)) (defun foo (x) (destructuring-bind (_) x)) (defun bar (x) (destructuring-bind (_) x (ignore _))) In foo the compiler complains because _ is never used and it bar it complains because it is used. In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1) of 2011-05-21 on ix Windowing system distributor `The X.Org Foundation', version 11.0.10707000 configured using `configure '--with-gif=no' '--with-gnutls=no''