From d0aa3992f529952c99bf253ab0405215bdcfd8ca Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Tue, 22 Jul 2014 13:09:03 +0200
Subject: [PATCH] Fixed check in PHP < 5.5

---
 .../lib/system/package/PackageInstallationScheduler.class.php  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
index a84266dcbd..19416dabcc 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
@@ -265,7 +265,8 @@ class PackageInstallationScheduler {
 			
 			// check install instructions
 			if ($validateInstallInstructions) {
-				if (empty($archive->getInstallInstructions())) {
+				$installInstructions = $archive->getInstallInstructions();
+				if (empty($installInstructions)) {
 					throw new SystemException("Package '" . $archive->getLocalizedPackageInfo('packageName')  . "' (" . $archive->getPackageInfo('name') . ") does not contain valid installation instructions.");
 				}
 			}
-- 
2.20.1