If using OpenLayers namespace must have at least one requirement.

lib/OpenLayers/BaseTypes.js

@@ -3,6 +3,10 @@
  * See http://svn.openlayers.org/trunk/openlayers/license.txt for the
  * full text of the license. */
 
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
 /** 
  * Header: OpenLayers Base Types
  * OpenLayers custom string, number and function functions are described here.

lib/OpenLayers/BaseTypes/Date.js

@@ -3,6 +3,10 @@
  * See http://svn.openlayers.org/trunk/openlayers/license.txt for the
  * full text of the license. */
 
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
 /**
  * Namespace: OpenLayers.Date
  * Contains implementations of Date.parse and date.toISOString that match the

lib/OpenLayers/Spherical.js

@@ -3,6 +3,10 @@
  * See http://svn.openlayers.org/trunk/openlayers/license.txt for the
  * full text of the license. */
 
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
 /**
  * Namespace: Spherical
  * The OpenLayers.Spherical namespace includes utility functions for