From 77c3f51118a7a2d92d806f3c1c8a915e793af637 Mon Sep 17 00:00:00 2001
From: Flavio Copes <copesc@gmail.com>
Date: Thu, 7 Apr 2016 11:51:22 +0200
Subject: [PATCH] Additional check that class exists before loading

---
 system/src/Grav/Common/Twig/Twig.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/system/src/Grav/Common/Twig/Twig.php b/system/src/Grav/Common/Twig/Twig.php
index 391d7ad31..7e4a083f8 100644
--- a/system/src/Grav/Common/Twig/Twig.php
+++ b/system/src/Grav/Common/Twig/Twig.php
@@ -146,7 +146,9 @@ class Twig
 
             // enable the Intl Twig extension if translations  are enabled
             if (count($config->get('system.languages.supported', [])) > 0) {
-                $this->twig->addExtension(new \Twig_Extensions_Extension_Intl());
+                if (class_exists('\Twig_Extensions_Extension_Intl')) {
+                    $this->twig->addExtension(new \Twig_Extensions_Extension_Intl());
+                }
             }
 
             $this->grav->fireEvent('onTwigExtensions');