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diff --git a/src/corelib/thread/qatomic_bootstrap.h b/src/corelib/thread/qatomic_bootstrap.h
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Copyright (C) 2011 Thiago Macieira <thiago@kde.org>
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** 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 https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QATOMIC_BOOTSTRAP_H
-#define QATOMIC_BOOTSTRAP_H
-
-#include <QtCore/qgenericatomic.h>
-
-QT_BEGIN_NAMESPACE
-
-#if 0
-// silence syncqt warnings
-QT_END_NAMESPACE
-#pragma qt_sync_skip_header_check
-#pragma qt_sync_stop_processing
-#endif
-
-#define Q_ATOMIC_INT8_IS_SUPPORTED
-template<> struct QAtomicOpsSupport<1> { enum { IsSupported = 1 }; };
-#define Q_ATOMIC_INT16_IS_SUPPORTED
-template<> struct QAtomicOpsSupport<2> { enum { IsSupported = 1 }; };
-#define Q_ATOMIC_INT32_IS_SUPPORTED
-#define Q_ATOMIC_INT64_IS_SUPPORTED
-template<> struct QAtomicOpsSupport<8> { enum { IsSupported = 1 }; };
-
-template <typename T> struct QAtomicOps: QGenericAtomicOps<QAtomicOps<T> >
-{
- typedef T Type;
-
- static bool ref(T &_q_value) noexcept
- {
- return ++_q_value != 0;
- }
- static bool deref(T &_q_value) noexcept
- {
- return --_q_value != 0;
- }
-
- static bool testAndSetRelaxed(T &_q_value, T expectedValue, T newValue, T *currentValue = nullptr) noexcept
- {
- if (currentValue)
- *currentValue = _q_value;
- if (_q_value == expectedValue) {
- _q_value = newValue;
- return true;
- }
- return false;
- }
-
- static T fetchAndStoreRelaxed(T &_q_value, T newValue) noexcept
- {
- T tmp = _q_value;
- _q_value = newValue;
- return tmp;
- }
-
- template <typename AdditiveType> static
- T fetchAndAddRelaxed(T &_q_value, AdditiveType valueToAdd) noexcept
- {
- T returnValue = _q_value;
- _q_value += valueToAdd;
- return returnValue;
- }
-};
-
-QT_END_NAMESPACE
-
-#endif // QATOMIC_BOOTSTRAP_H