From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Jason Rumney <jasonr@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Mac OS X: Rebuild Require after Security Update 2002-11-21
Date: 24 Nov 2002 21:03:29 +0000
Sender: emacs-devel-admin@gnu.org
Message-ID: <m2smxqadem.fsf@nyaumo.btinternet.com>
References: <m2bs4g9srx.fsf@owlbear.local>
	<m2u1i7c0d9.fsf@nyaumo.btinternet.com> <m2adjywxic.fsf@owlbear.local>
NNTP-Posting-Host: main.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: main.gmane.org 1038255033 23102 80.91.224.249 (25 Nov 2002 20:10:33 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Mon, 25 Nov 2002 20:10:33 +0000 (UTC)
Cc: emacs-devel@gnu.org
Return-path: <emacs-devel-admin@gnu.org>
Original-Received: from quimby.gnus.org ([80.91.224.244])
	by main.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 18GPYt-00060R-00
	for <emacs-devel@main.gmane.org>; Mon, 25 Nov 2002 21:10:31 +0100
Original-Received: from monty-python.gnu.org ([199.232.76.173])
	by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian))
	id 18GPef-0007UG-00
	for <emacs-devel@quimby.gnus.org>; Mon, 25 Nov 2002 21:16:29 +0100
Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.10)
	id 18GPZk-0003sl-00; Mon, 25 Nov 2002 15:11:24 -0500
Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.10)
	id 18GPZH-0003QO-00
	for emacs-devel@gnu.org; Mon, 25 Nov 2002 15:10:55 -0500
Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.10)
	id 18GPZD-0003Hh-00
	for emacs-devel@gnu.org; Mon, 25 Nov 2002 15:10:54 -0500
Original-Received: from protactinium.btinternet.com ([194.73.73.176] helo=protactinium)
	by monty-python.gnu.org with esmtp (Exim 4.10)
	id 18GPZC-00036G-00
	for emacs-devel@gnu.org; Mon, 25 Nov 2002 15:10:50 -0500
Original-Received: from host62-7-65-161.in-addr.btopenworld.com ([62.7.65.161] helo=nyaumo.btinternet.com)
	by protactinium with esmtp (Exim 3.22 #16)
	id 18GPZ7-0001m9-00; Mon, 25 Nov 2002 20:10:46 +0000
Original-Received: from nyaumo.btinternet.com (nyaumo.btinternet.com [127.0.0.1])
	by nyaumo.btinternet.com (Postfix) with ESMTP
	id 7843E4B02A; Sun, 24 Nov 2002 21:03:30 +0000 (GMT)
Original-To: Andrew Choi <akochoi@shaw.ca>
In-Reply-To: <m2adjywxic.fsf@owlbear.local>
Original-Lines: 14
User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50
Errors-To: emacs-devel-admin@gnu.org
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.0.11
Precedence: bulk
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Post: <mailto:emacs-devel@gnu.org>
List-Subscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
List-Id: Emacs development discussions. <emacs-devel.gnu.org>
List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://mail.gnu.org/pipermail/emacs-devel/>
Xref: main.gmane.org gmane.emacs.devel:9670
X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:9670

Andrew Choi <akochoi@shaw.ca> writes:

> Thanks.  Yes, that's probably the cause.  Unfortunately dynamically
> linked libraries are the only choice for using most of the "system
> frameworks" on Mac OS X.  I'm currently trying to determine whether some
> variables in the libraries are somehow unexec'ed along with the Emacs
> heap.  Of course this will cause a problem if the new libraries change
> the variables' locations.  There aren't many tools available to look
> into this.  But I'll figure out a way sooner or later.

In the case where this caused problems on Windows, it was because the
initialization of the dynamically loaded functions was happening only
when Emacs was dumped.  To work across OS updates, you need to make
sure that the initialization is run every time Emacs runs.