From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13197 invoked by alias); 22 Apr 2008 16:01:14 -0000 Received: (qmail 13178 invoked by uid 22791); 22 Apr 2008 16:01:14 -0000 X-Spam-Check-By: sourceware.org Received: from aquarius.hirmke.de (HELO calimero.vinschen.de) (217.91.18.234) by sourceware.org (qpsmtpd/0.31.1) with ESMTP; Tue, 22 Apr 2008 16:00:55 +0000 Received: by calimero.vinschen.de (Postfix, from userid 500) id CE42F6D4312; Tue, 22 Apr 2008 18:00:52 +0200 (CEST) Date: Tue, 22 Apr 2008 16:01:00 -0000 From: Corinna Vinschen To: cygwin-apps@cygwin.com Subject: Re: [HEADSUP] Let's start a Cygwin 1.7 release area Message-ID: <20080422160052.GO23852@calimero.vinschen.de> Reply-To: cygwin-apps@cygwin.com Mail-Followup-To: cygwin-apps@cygwin.com References: <1208879483.2504.1249265081@webmail.messagingengine.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1208879483.2504.1249265081@webmail.messagingengine.com> User-Agent: Mutt/1.5.16 (2007-06-09) Mailing-List: contact cygwin-apps-help@cygwin.com; run by ezmlm Precedence: bulk Sender: cygwin-apps-owner@cygwin.com List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Mail-Followup-To: cygwin-apps@cygwin.com X-SW-Source: 2008-04/txt/msg00280.txt.bz2 On Apr 22 11:51, Charles Wilson wrote: > Brian Dessent wrote: > > the DLL already supports > > parallel installs by the fact that it uses /etc/fstab. > > Only in very limited cases: > > (1) we're talking about cygwin-1.7.x > (2) Either > (a) only one of those parallel instances is in use at a time, > including installed services, > or > (b) all of those parallel instances have exactly the same version of > the DLL > (3) Even so, doing this is not officially supported (the current > dual-installation "support" vis-a-vis cygwin-1.5.x and cygwin-1.7.x is > (a) temporary and > (b) intended for package maintainers only, in order to prepare the > cygwin-1.7 packages -- and package maintainers generally know what > they are doing and what the pitfalls of a dual/multiple installation > are. > > Right? You still have to worry about the shared memory region name, and > its format which may vary with DLL version. Plus there still might be > other stuff that prevents parallel cygwin installs from running > simultaneously. And I don't think supporting simultaneous use of > multiple cygwin installations is one of our goals, is it? In theory, the latest incarnation of the Cygwin DLL should work in parallel with a 1.5.x DLL. In theory. I didn't actually test it. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat