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Date:	Sun, 11 May 2003 07:49:43 -0700
From:	Dario Alcocer <alcocer AT helixdigital DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: cygipc (and PostgreSQL) XP problem resolved!
Message-ID:	<20030511074943.B10928@ns.helixdigital.com>
References:	<3EB84F52 DOT 3020608 AT ece DOT gatech DOT edu> <20030507133326 DOT GA1824 AT tishler DOT net> <3EB9A54B DOT 8060500 AT ece DOT gatech DOT edu> <20030508135217 DOT GD512 AT tishler DOT net> <3EBB22F5 DOT 4000801 AT ece DOT gatech DOT edu> <1052541657 DOT 1675 DOT 5 DOT camel AT localhost> <20030510072110 DOT B12261 AT ns DOT helixdigital DOT com> <20030510155401 DOT GI19367 AT cygbert DOT vinschen DOT de> <20030510095611 DOT A20781 AT ns DOT helixdigital DOT com> <3EBD344E DOT 6010906 AT rfk DOT com>
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In-Reply-To:	<3EBD344E.6010906@rfk.com>; from lhall@rfk.com on Sat, May 10, 2003 at 01:18:06PM -0400

On Sat, May 10, 2003 at 01:18:06PM -0400, Larry Hall (RFK Partners, Inc.) wrote:
> Dario Alcocer wrote:
> > For instance, the PowerTV tool chain uses GNUPro 99, which has an
> > ancient cygwin1.dll included. As long as I don't install the latest
> > Cygwin stuff, everything is ok. However, as soon as I install the
> > latest cygwin1.dll, the PowerTV gcc/binutils cease to function
> > correctly. I suspect it has something to do with the Cygwin API and/or
> > ABI changing, and since the Cygwin DLL filename is exactly the same, it
> > loads the new library instead of using the old one.
> 
> Cygwin will bump the version number for the DLL (to cygwin2.dll) when
> a backward incompatible change is made.  If you've had problems in the
> past with the GNUPro toosl, you'd need to consult the provider of those
> tools.  That's not a product of this project so this site doesn't support
> it.  I can't speak to whether an ABI incompatible change has been made
> w.r.t. the version of the Cygwin DLL that was distributed with that product.

Well, I'll try to notify PowerTV. However, you can probably see where
this might lead: PowerTV will say that they didn't write the toolkit,
they just license it from Red Hat, which in turn will say they can't
support you, you'll need a service contract.

Anyway, I'll get the balling rolling at work so we can start contacting
PowerTV and Red Hat.

> > They way I've gotten around this issue is to binary edit the PowerTV
> > tool chain and change references to the cygwin1.dll to refer to
> > cygwin0.dll; this is a very ugly hack, and I don't recommend it. But it
> > does serve to highlight the kinds of problems people might be running
> > into in the field.
> 
> If people have run into this kind of problem using the Cygwin distribution,
> it needs to be reported.  I haven't seen anything on this list that would
> indicate that's the case though.

Actually, I think two other folks have reported issues that might be
related to this. However, IIRC they were told that this list doesn't
provide free support for the GNUPro 99 tools, and that they had to
purchase a support contract, which is entirely reasonable IMO.

-- 
Dario Alcocer -- Sr. Software Developer, Helix Digital Inc.
alcocer AT helixdigital DOT com -- http://www.helixdigital.com

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