#013370: Infinitive loop in ezcBaseFile::calculateRelativePath()

Here is my test script... something must be wrong with the while.

<?php
require 'autoload.php';
$dir = getcwd();
echo $dir;
ezcBaseFile::calculateRelativePath( 'C:\workspace\xxx_upgrade', $dir );
die("aaaaaa");
?>

the output the script never dies...

---

C:\workspace\xxx_upgrade>php extension\ezsvn\bin\buildxml.php -o
C:\workspace\xxx_upgrade

I am guessing a fix now

---

        while ( $pathPart == $basePart )
        {
+          if( $pathPart = ''  and  $basePart = '' )
+               return '.';
            $pathPart = array_shift( $path );
            $basePart = array_shift( $base );
        }

Operating System:win xp 64 bit
PHP Version: (please be specific, like '4.4.3' or '5.1.5')
Database and version:
Browser (and version):