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Date: Wed, 18 Aug 2010 21:58:11 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: "run" changes behavior with cygwin-17.6
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On Aug 18 14:49, Brian Ford wrote:
> On Wed, 18 Aug 2010, Corinna Vinschen wrote:
> 
> > On Aug 18 15:22, Christopher Faylor wrote:
> > > On Wed, Aug 18, 2010 at 03:19:06PM -0400, Christopher Faylor wrote:
> > > >>already does for the environment.  Dropping the environment had roughly
> > > >>the same consequences way back when, after all.
> > > >
> > > >Except that not every program uses the windows environment.  This affects
> > > >quite a few native windows calls.
> >
> > It affects every program which calls CreateProcess or ShellExecute, for
> > instance.  This includes GDB, tcl, run, run2, cygstart, etc.
> >
> > > And, for that reason, I think we should reconsider this change.  Maybe
> > > as a compromise maybe we could at least avoid cd'ing to the dummy
> > > location on entry to the first cygwin program.
> >
> > I disagree.  When do you change the directory to //?/pipe then?  The
> > first time chdir is called?
> 
> Can someone please remind me why you shouldn't change to that directory
> only when SetCurrentDirectory would fail due to a long path, virtual
> path, etc?  I think it was covered in the developer list, but I can't find
> it right now.

It breaks POSIX compatibility in terms of not being able to rename
or delete a directory which is the CWD of any process.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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