Windows requires SystemRoot env var to run tests

diff --git a/run-tests.php b/run-tests.php
index 7f1435e29e5a7afae206036c15660a2ee1139f17..423ede7cd33f9f3c4c6c70e384f598cf89f5825c 100755 (executable)
--- a/run-tests.php
+++ b/run-tests.php
@@ -111,6 +111,9 @@ SAFE_MODE_WARNING;
 }
 
 $environment = isset($_ENV) ? $_ENV : array();
+if ((substr(PHP_OS, 0, 3) == "WIN") && empty($environment["SystemRoot"])) {
+  $environment["SystemRoot"] = getenv("SystemRoot");
+}
 
 // Don't ever guess at the PHP executable location.
 // Require the explicit specification.