Merge branch '3.4' into 4.4

nicolas-grekas · nicolas-grekas · commit 659699b9cea9 · 2020-07-01T19:14:21.000+02:00
* 3.4:
  [Console] Do not check for "stty" using "exec" if that function is disabled
diff --git a/src/Symfony/Component/Console/Terminal.php b/src/Symfony/Component/Console/Terminal.php
@@ -66,6 +66,11 @@ public static function hasSttyAvailable()
             return self::$stty;
         }
 
+        // skip check if exec function is disabled
+        if (!\function_exists('exec')) {
+            return false;
+        }
+
         exec('stty 2>&1', $output, $exitcode);
 
         return self::$stty = 0 === $exitcode;
