--- a/include/llvm/Support/ThreadPool.h	Sat Feb 17 09:57:20 2018 +0900
+++ b/include/llvm/Support/ThreadPool.h	Wed Aug 14 16:55:33 2019 +0900
@@ -1,9 +1,8 @@
 //===-- llvm/Support/ThreadPool.h - A ThreadPool implementation -*- C++ -*-===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
@@ -14,6 +13,7 @@
 #ifndef LLVM_SUPPORT_THREAD_POOL_H
 #define LLVM_SUPPORT_THREAD_POOL_H
 
+#include "llvm/Config/llvm-config.h"
 #include "llvm/Support/thread.h"
 
 #include <future>