Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <001e01c2d78c$e59ead50$78d96f83@pomello> From: "Max Bowsher" To: "Ben Clewett" Cc: References: <3E525380.2000801@roadrunner.uk.com> Subject: Re: Duplicate CygWin Date: Tue, 18 Feb 2003 20:32:46 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Ben Clewett wrote: > For my working, I would need a fully detached CygWin. It's own > memory, it's own DLL, and not a dependence on an existing > installation. > > This is because I will be using Install Sheild to load and run an > entire application, which is compiled under CygWin, onto a foreign > machine, which may be of any setup including an old, badly setup, > hached and conflicting CygWin... Also then the 'Add/Remove Software' > can rid the foreign OS of my stuff, without deleting the CygWin which > is being used by my poor customer. > > I do not need this for about six months, so will give me plenty of > time to have a good hack and get to know CygWin a lot better.... Make sure you aware of licensing issues before you start bundling the Cygwin DLL with something. On the technical side, I have been able to prepare an isolated Cygwin - I now have a mygwin1.dll and a simple "Hello World!" exe that uses it, and which does not clash with running cygwin. I would like to point out that there was one stumbling block in addition to DLL name and shared memory ID. It is only an issue if you want to run a mygwin exe from a cygwin one. It is the child_info struct that it passed between cygwin processes. Currently, you get version clash here, requiring some hacking to enforce isolation here too. Max. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/