materio-base-d7/sites/all/modules/contrib/theming/extlink/extlink.install

<?php

/**
 * Implements hook_install().
 */
function extlink_install() {
  // Weight needs to be 1 for compatibility with SpamSpan.
  db_query("UPDATE {system} SET weight = 1 WHERE name = 'extlink'");
}

/**
 * Implements hook_uninstall().
 */
function extlink_uninstall() {
  db_query("DELETE FROM {variable} WHERE name LIKE 'extlink_%'");
  cache_clear_all('variables', 'cache');
}

/**
 * Delete "extlink_target_value" variable (now uses "extlink_target" directly).
 */
function extlink_update_7101(&$sandbox) {
  variable_del('extlink_target_value');
}