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diff --git a/src/corelib/io/forkfd_qt.cpp b/src/corelib/io/forkfd_qt.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2014 Intel Corporation
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// these might be defined via precompiled headers
+#ifndef _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE 200809L
+#endif
+#if !defined(_XOPEN_SOURCE) && !defined(__QNXNTO__) && !defined(ANDROID)
+# define _XOPEN_SOURCE 700
+#endif
+
+#include <QtCore/qatomic.h>
+#include "qprocess_p.h"
+
+#ifdef QPROCESS_USE_SPAWN
+# define FORKFD_NO_FORKFD
+#else
+# define FORKFD_NO_SPAWNFD
+#endif
+
+#if defined(QT_NO_DEBUG) && !defined(NDEBUG)
+# define NDEBUG
+#endif
+
+typedef QT_PREPEND_NAMESPACE(QBasicAtomicInt) ffd_atomic_int;
+#define ffd_atomic_pointer(type) QT_PREPEND_NAMESPACE(QBasicAtomicPointer<type>)
+
+QT_BEGIN_NAMESPACE
+
+#define FFD_ATOMIC_INIT(val) Q_BASIC_ATOMIC_INITIALIZER(val)
+
+#define FFD_ATOMIC_RELAXED Relaxed
+#define FFD_ATOMIC_ACQUIRE Acquire
+#define FFD_ATOMIC_RELEASE Release
+#define loadRelaxed load
+#define storeRelaxed store
+
+#define FFD_CONCAT(x, y) x ## y
+
+#define ffd_atomic_load(ptr,order) (ptr)->FFD_CONCAT(load, order)()
+#define ffd_atomic_store(ptr,val,order) (ptr)->FFD_CONCAT(store, order)(val)
+#define ffd_atomic_exchange(ptr,val,order) (ptr)->FFD_CONCAT(fetchAndStore, order)(val)
+#define ffd_atomic_compare_exchange(ptr,expected,desired,order1,order2) \
+ (ptr)->FFD_CONCAT(testAndSet, order1)(*expected, desired, *expected)
+#define ffd_atomic_add_fetch(ptr,val,order) ((ptr)->FFD_CONCAT(fetchAndAdd, order)(val) + val)
+
+QT_END_NAMESPACE
+
+extern "C" {
+#include "../../3rdparty/forkfd/forkfd.c"
+}