// TR1 unordered_map -*- C++ -*-
-// Copyright (C) 2005-2017 Free Software Foundation, Inc.
+// Copyright (C) 2005-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
#pragma GCC system_header
+#include <bits/requires_hosted.h> // TR1
+
#include <utility>
#include <bits/stl_algobase.h>
#include <bits/allocator.h>