Adapted for v2.0.8 from

From 2cb9630320370109a733b214049b6c2028712307 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Tue, 26 Jan 2021 15:54:21 +0100
Subject: [PATCH] Fix $_SERVER var not being updated when using putenv, refs
 b80038804ff791a9d4608d737ad937b6033b0bae and fixes #9372


diff -up ./src/Composer/EventDispatcher/EventDispatcher.php.old ./src/Composer/EventDispatcher/EventDispatcher.php
--- ./src/Composer/EventDispatcher/EventDispatcher.php.old	2021-01-26 16:53:39.118387399 +0100
+++ ./src/Composer/EventDispatcher/EventDispatcher.php	2021-01-26 16:54:45.679025338 +0100
@@ -243,6 +243,8 @@ class EventDispatcher
 
                 if (strpos($exec, '@putenv ') === 0) {
                     putenv(substr($exec, 8));
+                    list($var, $value) = explode('=', substr($exec, 8), 2);
+                    $_SERVER[$var] = $value;
 
                     continue;
                 }
diff -up ./src/Composer/Util/Git.php.old ./src/Composer/Util/Git.php
--- ./src/Composer/Util/Git.php.old	2021-01-26 16:53:11.000000000 +0100
+++ ./src/Composer/Util/Git.php	2021-01-26 16:53:39.118387399 +0100
@@ -354,7 +354,7 @@ class Git
         // added in git 1.7.1, prevents prompting the user for username/password
         if (getenv('GIT_ASKPASS') !== 'echo') {
             putenv('GIT_ASKPASS=echo');
-            unset($_SERVER['GIT_ASKPASS']);
+            $_SERVER['GIT_ASKPASS'] = 'echo';
         }
 
         // clean up rogue git env vars in case this is running in a git hook
@@ -370,6 +370,7 @@ class Git
         // Run processes with predictable LANGUAGE
         if (getenv('LANGUAGE') !== 'C') {
             putenv('LANGUAGE=C');
+            $_SERVER['LANGUAGE'] = 'C';
         }
 
         // clean up env for OSX, see https://github.com/composer/composer/issues/2146#issuecomment-35478940