From 0708eb45e5801ef2682f2af8635237eb5f025ddb Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Tue, 29 Mar 2022 14:07:04 +0200
Subject: [PATCH] Fix type error when PATH env is not set, fixes #10662

---
 src/Composer/EventDispatcher/EventDispatcher.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/EventDispatcher/EventDispatcher.php b/src/Composer/EventDispatcher/EventDispatcher.php
index 118c75f5b..73b8c58f2 100644
--- a/src/Composer/EventDispatcher/EventDispatcher.php
+++ b/src/Composer/EventDispatcher/EventDispatcher.php
@@ -576,7 +576,7 @@ class EventDispatcher
         $binDir = $this->composer->getConfig()->get('bin-dir');
         if (is_dir($binDir)) {
             $binDir = realpath($binDir);
-            $pathValue = Platform::getEnv($pathEnv);
+            $pathValue = (string) Platform::getEnv($pathEnv);
             if (!Preg::isMatch('{(^|'.PATH_SEPARATOR.')'.preg_quote($binDir).'($|'.PATH_SEPARATOR.')}', $pathValue)) {
                 Platform::putEnv($pathEnv, $binDir.PATH_SEPARATOR.$pathValue);
             }