--- includes/install.core.inc	2009-12-27 18:02:21.000000000 -0500
+++ includes/install.core.inc	2009-12-27 18:01:56.000000000 -0500
@@ -1,3 +1,11 @@
+<?php
+// $Id$
+
+/**
+ * @file
+ * API functions for installing Drupal.
+ */
+
 /**
  * Global flag to indicate that a task should not be run during the current
  * installation request.
@@ -225,6 +233,7 @@ function install_begin_request(&$install
   require_once DRUPAL_ROOT . '/modules/system/system.install';
   require_once DRUPAL_ROOT . '/includes/common.inc';
   require_once DRUPAL_ROOT . '/includes/file.inc';
+  require_once DRUPAL_ROOT . '/includes/install.inc';
   require_once DRUPAL_ROOT . '/' . variable_get('path_inc', 'includes/path.inc');
 
   // Load module basics (needed for hook invokes).