// export the contents of MNU_ROLE used by this subsystem
        $taskobj->sql_select = 'DISTINCT mnu_role.*';
        $taskobj->sql_from   = 'mnu_role '
     		.'INNER JOIN mnu_role_task ON mnu_role_task.role_id=mnu_role.role_id '
       		.'INNER JOIN mnu_task AS task ON task.task_id=mnu_role_task.task_id ';
        $taskobj->sql_orderby = 'role_id';
        $data = $taskobj->getData_raw("task.subsys_id='$subsys_id'");
        $output = $this->_exportSqlData('mnu_role', $data, $output);