diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony framework.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Symfony\Component\HttpKernel\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass as BaseMergeExtensionConfigurationPass;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * Ensures certain extensions are always loaded.
+ *
+ * @author Kris Wallsmith <kris@symfony.com>
+ */
+class MergeExtensionConfigurationPass extends BaseMergeExtensionConfigurationPass
+{
+    private $extensions;
+
+    public function __construct(array $extensions)
+    {
+        $this->extensions = $extensions;
+    }
+
+    public function process(ContainerBuilder $container)
+    {
+        foreach ($this->extensions as $extension) {
+            if (!count($container->getExtensionConfig($extension))) {
+                $container->loadFromExtension($extension, array());
+            }
+        }
+
+        parent::process($container);
+    }
+}