--- squirrelmail.devel/functions/strings.php.orig	2012-04-01 22:09:11.000000000 +0200
+++ squirrelmail.devel/functions/strings.php	2012-10-30 21:31:01.231496016 +0100
@@ -12,6 +12,8 @@
  * @package squirrelmail
  */
 
+include_once(SM_PATH . 'plugins/compatibility/functions.php');
+
 /**
  * Appends citation markers to the string.
  * Also appends a trailing space.