Index: wp-includes/link-template.php
===================================================================
--- wp-includes/link-template.php	(revision 6994)
+++ wp-includes/link-template.php	(working copy)
@@ -641,6 +641,8 @@
 		$result = $base . $request . $query_string;
 	}
 
+	$result = apply_filters('get_pagenum_link', $result);
+
 	return $result;
 }