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Date:	Wed, 18 Jun 2008 12:30:22 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Cygwin app not receiving modified PATH env var
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On Jun 18 05:30, Mike Mueller wrote:
> Obviously PATH is special to cygwin, because it has to transform the
> Windows representation into a Unix-like representation.  I agree with
> you that it *should* be pulled in like any other variable, but I'm not
> familiar with cygwin's under-the-hood workings.  This problem has me
> completely at a loss...

As I said, PATH is fetched with GetEnvironmentStrings from the env like
every other environment var, if the Cygwin app has been started by a
native parent.  It's just massaged into a POSIX path afterwards.
There's no magic involved like, say, some hidden mechanism to get the
environment from the grandparent or something.

Try this:

bash-3.2$ echo $PATH
/home/corinna/bin:/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem:/cygdrive/c/SFU/common/
$ cmd
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

c:\cygwin\home\corinna>echo %path%
C:\cygwin-1.5\mnt\c\cygwin\home\corinna\bin;C:\cygwin-1.5\bin;C:\cygwin-1.5\usr\local\bin;C:\cygwin-1.5\bin;C:\cygwin-1.5\bin;C:\cygwin-1.5\usr\X11R6\bin;c:\windows\system32;c:\windows;c:\windows\System32\Wbem;C:\cygwin-1.5\mnt\c\SFU\common\

c:\cygwin\home\corinna>set path=%path%;C:\

c:\cygwin\home\corinna>echo %path%
c:\cygwin\home\corinna\bin;C:\cygwin-1.5\bin;C:\cygwin-1.5\usr\local\bin;C:\cygw
in-1.5\bin;C:\cygwin-1.5\bin;C:\cygwin-1.5\usr\X11R6\bin;c:\WINDOWS\system32;c:\
WINDOWS;c:\WINDOWS\System32\Wbem;c:\SFU\common\;C:\

c:\cygwin\home\corinna>bash
bash-3.2$ echo $PATH
/cygdrive/c/cygwin/home/corinna/bin:/usr/bin:/usr/local/bin:/usr/bin:/usr/bin:/usr/X11R6/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem:/cygdrive/c/SFU/common/:/cygdrive/c

Well, works for me, obviously.


Corinna

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

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