diff -Nru roundcubemail-0.8.5-dep.orig/installer/index.php roundcubemail-0.8.5-dep/installer/index.php
--- roundcubemail-0.8.5-dep.orig/installer/index.php	2013-01-25 18:02:23.000000000 +0100
+++ roundcubemail-0.8.5-dep/installer/index.php	2013-02-20 19:05:01.286229100 +0100
@@ -39,7 +39,7 @@
 
 */
 
-ini_set('error_reporting', E_ALL&~E_NOTICE);
+ini_set('error_reporting', E_ALL&~ (E_NOTICE | E_STRICT));
 ini_set('display_errors', 1);
 
 define('INSTALL_PATH', realpath(dirname(__FILE__) . '/../').'/');