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Date: Tue, 1 Dec 2009 18:32:44 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Environment variable documentation
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On Dec  1 11:32, Ken Brown wrote:
> On 12/1/2009 4:45 AM, Corinna Vinschen wrote:
> >On Nov 30 17:04, Ken Brown wrote:
> >>I would be willing to take a stab at writing a patch if the
> >>developers think this would be useful.
> >
> >That sounds like a nice idea.
> 
> OK, my patch is attached.  It anticipates the change to the default
> .bashrc file that we've been discussing in the thread cited above.
> 
> Ken

> --- setup2.sgml.orig	2009-12-01 10:37:00.156250000 -0500
> +++ setup2.sgml	2009-12-01 11:29:53.562500000 -0500
> @@ -4,7 +4,9 @@
>  You may wish to specify settings of several important environment
>  variables that affect Cygwin's operation.  Some of these settings need
>  to be in effect prior to launching the initial Cygwin session (before
> -starting your bash shell, for instance), and are, consequentially, best
> +starting your bash shell, for instance).  They should therefore be set
> +in the Windows environment; all Windows environment variables are
> +imported when Cygwin starts.  Such settings can be
>  placed in a .bat file.  An initial file is named Cygwin.bat and is created
>  in the Cygwin root directory that you specified during setup.  Note that
>  the "Cygwin" option of the Start Menu points to Cygwin.bat.  Edit
> @@ -66,6 +68,21 @@
>  <function>dlopen ()</function> call and do not need this variable.
>  </para>
>  
> +<para>
> +In addition to <envar>PATH</envar>, <envar>HOME</envar>,
> +and <envar>LD_LIBRARY_PATH</envar>, there are three other environment
> +variables which, if they exist in the Windows environment, are
> +converted to UNIX format: <envar>TMPDIR</envar>, <envar>TMP</envar>,
> +and <envar>TEMP</envar>.  The first is not set by default in the
> +Windows environment but the other two are, and they point to the
> +default Windows temporary directory.  If set, these variables will be
> +used by some Cygwin applications, possibly with unexpected results.
> +They are therefore unset in the default <filename>.bashrc</filename>
> +file (<filename>/etc/defaults/etc/skel/.bashrc</filename>).  You may
> +prefer to set them to point to <filename>/tmp</filename> or to any
> +other temporary directory of your choice.
> +</para>
> +
>  </sect1>
>  
>  <sect1 id="setup-maxmem"><title>Changing Cygwin's Maximum Memory</title>
> 

Looks good.  Thanks for doing this.  Let's just wait until the .bashrc
related thread settled down to a conclusion.


Corinna

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

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