From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Drew Adams" Newsgroups: gmane.emacs.bugs Subject: bug#9570: 24.0.50; "debug-on-entry: Definition of ... is not a list" Date: Wed, 21 Sep 2011 20:48:20 -0700 Message-ID: <04F2A67454BA4472B8CED5ACDA79EB2B@us.oracle.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1316663339 5653 80.91.229.12 (22 Sep 2011 03:48:59 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 22 Sep 2011 03:48:59 +0000 (UTC) To: 9570@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Sep 22 05:48:51 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 1R6aHK-0000XG-GI for geb-bug-gnu-emacs@m.gmane.org; Thu, 22 Sep 2011 05:48:50 +0200 Original-Received: from localhost ([::1]:37332 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R6aHJ-000481-VI for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 21 Sep 2011 22:48:19 -0500 Original-Received: from dradamslap1 (/10.159.57.136) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 21 Sep 2011 20:48:19 -0700 X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acx42nf8F4gGmgk5S2apfT9pArgZdw== X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-Source-IP: rtcsinet21.oracle.com [66.248.204.29] X-CT-RefId: str=0001.0A090207.4E7AB00C.001F,ss=1,re=0.000,fgs=0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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: Wed, 21 Sep 2011 23:49:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:51644 Archived-At: emacs -Q Load file fuzzy.el, available in the tar or zip here: http://cx4a.org/software/auto-complete/#Downloads (The file is small.) M-x debug-on-entry isearch-message-prefix RET raises this error: debug-on-entry: Definition of isearch-message-prefix is not a list The file is contains this advice: (defadvice isearch-message-prefix (after fuzzy-isearch-message-prefix activate) (if fuzzy-isearch (setq ad-return-value (concat fuzzy-isearch-prefix ad-return-value)) ad-return-value)) I seem to vaguely recall some problem associated with lexbind, advice, and the debugger (and perhaps byte-compiling?). But a search of the Elisp manual and some bug reports turned up nothing. I thought that such problems had already been ironed out, but perhaps not. It's very hard to find the cause of such an error - even just locating the code that leads to it is not easy. And it's not clear to me now what a user can/should do about it. What's the deal? If there is something that users must not do or must avoid, then please document it. In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600) of 2011-09-19 on 3249CTO Windowing system distributor `Microsoft Corp.', version 5.1.2600 configured using `configure --with-gcc (4.5) --no-opt'