diff -Naur --exclude '*~' mnemo-h3-2.2/config/prefs.php.dist mnemo-h3-2.2-fix-constant-loading/config/prefs.php.dist
--- mnemo-h3-2.2/config/prefs.php.dist	2008-01-03 23:24:25.000000000 +0100
+++ mnemo-h3-2.2-fix-constant-loading/config/prefs.php.dist	2008-11-18 23:05:36.000000000 +0100
@@ -6,7 +6,7 @@
  */
 
 // Make sure that constants are defined.
-require_once dirname(__FILE__) . '/../lib/Mnemo.php';
+require_once '/usr/share/horde/mnemo/lib/Mnemo.php';
 
 $prefGroups['display'] = array(
     'column' => _("General Options"),