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Date: Tue, 9 Oct 2001 14:58:43 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin-developers AT cygwin DOT com
Subject: Re: Ignore the cygwin environment variable if child of a cygwin process?
Message-ID: <20011009145843.B25762@redhat.com>
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On Tue, Oct 09, 2001 at 10:43:55PM +0400, egor duda wrote:
>Hi!
>
>Tuesday, 09 October, 2001 Christopher Faylor cgf AT redhat DOT com wrote:
>
>CF> I keep seeing people who have set the CYGWIN environment variable from the bash
>CF> shell.  This causes strange problems.
>
>hmm. on the first glance only 'ntsec' and 'tty' options may cause
>trouble when changed on-the-fly. OTOH, they're probably most important
>options in CYGWIN env. variable. if we can pinpoint those options that
>are really prohibited from changing during "cygwin session" we can
>ignore only them. but 1) there may still be "legitimate" ways to
>change such options; 2) changing other options may still produce
>unexpected results to the people who don't know what they're doing.
>
>CF> I wonder if it would be worthwhile to ignore the CYGWIN environment variable
>CF> if it is set in a process that is a child of a cygwin process.
>
>CF> The downside is that there are probably some situations where it
>CF> actually works ok to do this and that we'll end up screwing up people
>CF> who know what they're doing.
>
>it'd definitely screw some of my scripts. and what's most
>disappointing, i can't see any workarounds if such change is made. 
>
>CF> We could just issue a warning but I hate for cygwin to be noisy in these kinds
>CF> of situations.
>
>CF> Any thoughts?
>
>I hate to sound non-constructive, but i think we'd better leave things
>as is. current situation is not good, but i don't see any better
>alternatives.

That's ok.  I wasn't exactly sure about the idea myself.  I do like the
idea of ignoring only the problematic settings but this might be too
much work for too little gain.

cgf