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-rw-r--r--src/corelib/thread/qbasicatomic.h67
1 files changed, 25 insertions, 42 deletions
diff --git a/src/corelib/thread/qbasicatomic.h b/src/corelib/thread/qbasicatomic.h
index 7960174277..447fca44c0 100644
--- a/src/corelib/thread/qbasicatomic.h
+++ b/src/corelib/thread/qbasicatomic.h
@@ -1,31 +1,38 @@
/****************************************************************************
**
** Copyright (C) 2011 Thiago Macieira <thiago@kde.org>
-** Contact: http://www.qt.io/licensing/
+** Copyright (C) 2016 Intel Corporation.
+** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
-** $QT_BEGIN_LICENSE:LGPL21$
+** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
+** 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 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.
+** 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.
**
-** 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.
+** 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.
**
** $QT_END_LICENSE$
**
@@ -40,42 +47,18 @@
# include <QtCore/qatomic_bootstrap.h>
// If C++11 atomics are supported, use them!
-#elif defined(Q_COMPILER_ATOMICS) && defined(Q_COMPILER_CONSTEXPR) && !defined(QT_ATOMIC_FORCE_NO_CXX11)
+// Note that constexpr support is sometimes disabled in QNX builds but its
+// library has <atomic>.
+#elif defined(Q_COMPILER_ATOMICS) && (defined(Q_COMPILER_CONSTEXPR) || defined(Q_OS_QNX))
# include <QtCore/qatomic_cxx11.h>
-// The following is used for testing only.
-// Note that we don't check the compiler support -- you had better
-// know what you're doing if you set it
-#elif defined(QT_ATOMIC_FORCE_GCC)
-# include <QtCore/qatomic_gcc.h>
-
-// Compiler dependent implementation
+// We only support one fallback: MSVC, because even on version 2015, it lacks full constexpr support
#elif defined(Q_CC_MSVC)
# include <QtCore/qatomic_msvc.h>
-// Processor dependent implementation
-#elif defined(Q_PROCESSOR_ARM_V7) && defined(Q_PROCESSOR_ARM_32)
-# include "QtCore/qatomic_armv7.h"
-#elif defined(Q_PROCESSOR_ARM_V6) && defined(Q_PROCESSOR_ARM_32)
-# include "QtCore/qatomic_armv6.h"
-#elif defined(Q_PROCESSOR_ARM_V5) && defined(Q_PROCESSOR_ARM_32)
-# include "QtCore/qatomic_armv5.h"
-#elif defined(Q_PROCESSOR_IA64)
-# include "QtCore/qatomic_ia64.h"
-#elif defined(Q_PROCESSOR_X86)
-# include <QtCore/qatomic_x86.h>
-
-// Fallback compiler dependent implementation
-#elif defined(Q_CC_GNU)
-# include <QtCore/qatomic_gcc.h>
-
-// Fallback operating system dependent implementation
-#elif defined(Q_OS_UNIX)
-# include <QtCore/qatomic_unix.h>
-
// No fallback
#else
-# error "Qt has not been ported to this platform"
+# error "Qt requires C++11 support"
#endif
QT_BEGIN_NAMESPACE