X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Wed, 18 Jun 2008 10:43:35 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: Cygwin app not receiving modified PATH env var Message-ID: <20080618084333.GA20180@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20080617034152.GD7632@samus.subfocal.net> <20080618010536.GE7632@samus.subfocal.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080618010536.GE7632@samus.subfocal.net> User-Agent: Mutt/1.5.16 (2007-06-09) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 On Jun 17 21:05, Mike Mueller wrote: > On Mon, Jun 16, 2008 at 11:41:52PM -0400, Mike Mueller wrote: > > I have a program (native win32) that is capable of launching > > sub-processes, using apr (apache portable runtime), which is essentially > > a wrapper around CreateProcess in the Windows API. My program creates a > > modified environment (changes the PATH env var), and passes this new > > environment to CreateProcess. > > > > When I run a native Windows program, for example, a .bat script that > > says "echo %PATH%", I see the correctly modified PATH env var. > > > > When I run a Cygwin program, the PATH is the original unmodified path > > (rephrased in cygwin format), maybe inherited from the parent process? > > The modified PATH being passed to CreateProcess is not discovered by the > > Cygwin app. > > No thoughts on this? How & when does Cygwin take a snapshot of the > Windows environment? I'm still trying to figure out how my modified > environment is not being picked up... Cygwin processes get their environment from the parent process, just like any other process. In case of having a Cygwin parent, it uses another mechanism for environment inheritance, but if the parent is a native process, it gets it env from a call to GetEnvironmentStrings. There's no other way, really. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/