Index: wp-includes/wp-db.php
===================================================================
--- wp-includes/wp-db.php	(revision 17501)
+++ wp-includes/wp-db.php	(working copy)
@@ -1511,6 +1511,7 @@
 	 * @return bool True if collation is supported, false if version does not
 	 */
 	function supports_collation() {
+		_deprecated_function( __FUNCTION__, '3.2' , 'wpdb::has_cap( \'collation\' )' );
 		return $this->has_cap( 'collation' );
 	}