Search API can not load custom search settings

[jdarwood007]

Notice: Undefined property: sphinxql_search::$searchSettings in /smf/Sources/ManageSearch.php on line 111

Warning: call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in /smf/Sources/ManageSearch.php on line 111

This appears to be due to this:

    // Perhaps the search method wants to add some settings?
    require_once($sourcedir . '/Search.php');
    $searchAPI = findSearchAPI();
    if (is_callable(array($searchAPI, 'searchSettings')))
        call_user_func_array($searchAPI->searchSettings, array(&$config_vars));

Changing the last line to this makes it work:

        call_user_func_array(array($searchAPI, 'searchSettings'), array(&$config_vars));