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From: martin rudalics <rudalics@gmx.at>
Newsgroups: gmane.emacs.devel
Subject: Re: C mode font-lock regression
Date: Sun, 12 Nov 2006 20:33:49 +0100
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> The font-locking in C mode seem to have regressed with the latest
> source.  I see frequent unfontification of code in lines below point
> when inserting a character.  This didn't happen in my previous build
>>from 2006-11-08.

Can you please check whether your "previous" build was before

2006-11-08  Alan Mackenzie  <acm@muc.de>

	* emacs-lisp/lisp.el (beginning-of-defun-raw): Code up the
	case (eq open-paren-in-column-0-is-defun-start nil) by searching
	for least nested open-paren.

and the regression occurred in a build after that change?