Merge branch 'QA_4_3'

ChangeLog

@@ -23,6 +23,7 @@ phpMyAdmin - ChangeLog
 + rfe #1582 SQL formatter
 
 4.3.8.0 (not yet released)
+- bug       Undefined constant PMA_DRIZZLE
 
 4.3.7.0 (2015-01-15)
 - bug #4694 js error on marking table as favorite in Safari (in private mode)

libraries/DatabaseInterface.class.php

@@ -2391,6 +2391,10 @@ class PMA_DatabaseInterface
      */
     public function isSystemSchema($schema_name, $testForMysqlSchema = false)
     {
+        if (!defined("PMA_DRIZZLE")) {
+            define("PMA_DRIZZLE", false);
+        }
+
         return strtolower($schema_name) == 'information_schema'
             || (!PMA_DRIZZLE
                 && strtolower($schema_name) == 'performance_schema')