Autoload Zend Framework 2 library in kohana

autoload.php

<?php
/**
 * Enable Zend Framework autoloading
 */
if ($path = Kohana::find_file('vendor', 'Zend/library/Zend/Loader')) {

	ini_set('include_path', 
		ini_get('include_path') . PATH_SEPARATOR . dirname(dirname($path)));

	require_once 'Zend/Loader/AutoloaderFactory.php';

	Zend\Loader\AutoloaderFactory::factory();
}