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Date:	Sun, 10 May 2020 07:42:16 -0500
Message-ID:	<CAAXzdLX9-nhXdUV8s2XoHAjOaL=KQyGV7v473uU+MudD620PtA@mail.gmail.com>
Subject:	Cygwin convert environment paths
To:	cygwin AT cygwin DOT com
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From:	Steven Penny via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Steven Penny <svnpenn AT gmail DOT com>
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>

I see here:

<https://cygwin.com/cygwin-ug-net/setup-env.html>

That Cygwin does convert some environment variables, from Windows format to
Unix format. For example HOME and TMP. But for me at least, are some important
omissions.

I use APPDATA and PROGRAMFILES a good amount, and those arent converted. To make
it worse, HOMEDRIVE and SYSTEMDRIVE arent converted either, meaning you cant
manually construct the path starting with a variable. This causes some
problems. Take this example:

    <?php
    $s_old = realpath('a.txt');
    $s_new = getenv('HOMEDRIVE') . DIRECTORY_SEPARATOR . 'a.txt';
    # PHP Warning:  symlink(): No such file or directory
    symlink($s_old, $s_new);
--
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