function qtranxf_adjust_config_files($fn_add, $fn_del)
{
    $config_files = qtranxf_get_option_config_files();
    if ($fn_add) {
        if (in_array($fn_add, $config_files)) {
            $fn_add = false;
        } else {
            $config_files = qtranxf_add_config_file($config_files, $fn_add);
        }
    }
    if ($fn_del) {
        $i = array_search($fn_del, $config_files);
        if ($i === FALSE) {
            $fn_del = false;
        } else {
            unset($config_files[$i]);
        }
    }
    if (!$fn_add && !$fn_del) {
        return;
    }
    qtranxf_update_config_options($config_files);
}
function qtranxf_on_deactivate_plugin($plugin, $network_deactivating = false)
{
    //qtranxf_dbg_log('qtranxf_on_deactivate_plugin: $plugin: ',$plugin);
    $bnm = dirname($plugin);
    $qtx = qtranxf_plugin_dirname();
    if ($bnm == $qtx) {
        if ($bnm == 'qtranslate-x') {
            //not testing version
            $ver_cur = qtranxf_version_int();
            update_option('qtranslate_version_previous', $ver_cur);
        }
        return;
    }
    $fn = qtranxf_find_plugin_file($bnm . '/i18n-config.json');
    if (!$fn) {
        $fn = qtranxf_plugin_dirname() . '/i18n-config/plugins/' . $bnm . '/i18n-config.json';
        $fn = qtranxf_find_plugin_file($fn);
        if (!$fn) {
            return;
        }
    }
    //qtranxf_dbg_log('qtranxf_on_deactivate_plugin: $fn: ',$fn);
    $config_files = qtranxf_get_option_config_files();
    $i = array_search($fn, $config_files);
    if ($i === FALSE) {
        return;
    }
    unset($config_files[$i]);
    qtranxf_update_config_options($config_files);
}