From 5e8d84467857d341edc2728285e054e7e370a01d Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Thu, 14 Feb 2013 12:11:15 +0100
Subject: [PATCH] [Process] Warn user with a useful message when tmpfile()
 failed

---
 src/Symfony/Component/Process/Process.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Symfony/Component/Process/Process.php b/src/Symfony/Component/Process/Process.php
index 4af26e85a2..7f065efe26 100644
--- a/src/Symfony/Component/Process/Process.php
+++ b/src/Symfony/Component/Process/Process.php
@@ -213,6 +213,9 @@ class Process
             $this->fileHandles = array(
                 self::STDOUT => tmpfile(),
             );
+            if (false === $this->fileHandles[self::STDOUT]) {
+                throw new RuntimeException('A temporary file could not be opened to write the process output to, verify that your TEMP environment variable is writable');
+            }
             $this->readBytes = array(
                 self::STDOUT => 0,
             );