function clearDeps()
    {
        if (!isset($this->_packageInfo['dependencies'])) {
            $this->_packageInfo = $this->_mergeTag($this->_packageInfo, array(),
                array(
                    'dependencies' => array('providesextension', 'usesrole', 'usestask',
                        'srcpackage', 'srcuri', 'phprelease', 'extsrcrelease', 'extbinrelease',
                        'zendextsrcrelease', 'zendextbinrelease', 'bundle', 'changelog')));
        }
        $this->_packageInfo['dependencies'] = array();
    }