From 0e9325da796a5a3b990a2d756ea5e5a2376841bd Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@xabbuh.de>
Date: Wed, 12 Mar 2014 16:30:09 +0100
Subject: [PATCH] for AliasPackages check that the aliased package is white
 listed so that version constraints of AliasPackages are taken into account
 when computing package provisions

---
 src/Composer/DependencyResolver/Pool.php | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Composer/DependencyResolver/Pool.php b/src/Composer/DependencyResolver/Pool.php
index 18f2d5797..853673905 100644
--- a/src/Composer/DependencyResolver/Pool.php
+++ b/src/Composer/DependencyResolver/Pool.php
@@ -268,9 +268,18 @@ class Pool
         $nameMatch = false;
 
         foreach ($candidates as $candidate) {
+            $aliasOfCandidate = null;
+
+            // alias packages are not white listed, make sure that the package
+            // being aliased is white listed
+            if ($candidate instanceof AliasPackage) {
+                $aliasOfCandidate = $candidate->getAliasOf();
+            }
+
             if ($this->whitelist !== null && (
                 (is_array($candidate) && isset($candidate['id']) && !isset($this->whitelist[$candidate['id']])) ||
-                (is_object($candidate) && !isset($this->whitelist[$candidate->getId()]))
+                (is_object($candidate) && !($candidate instanceof AliasPackage) && !isset($this->whitelist[$candidate->getId()])) ||
+                (is_object($candidate) && $candidate instanceof AliasPackage && !isset($this->whitelist[$aliasOfCandidate->getId()]))
             )) {
                 continue;
             }