Long live Qt 4.5!

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diff --git a/src/corelib/kernel/qsystemsemaphore_p.h b/src/corelib/kernel/qsystemsemaphore_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSYSTEMSEMAPHORE_P_H
+#define QSYSTEMSEMAPHORE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qsystemsemaphore.h"
+
+#ifndef QT_NO_SYSTEMSEMAPHORE
+
+#include "qsharedmemory_p.h"
+#ifndef Q_OS_WINCE
+#   include <sys/types.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QSystemSemaphorePrivate
+{
+
+public:
+    QSystemSemaphorePrivate();
+
+    QString makeKeyFileName()
+    {
+        return QSharedMemoryPrivate::makePlatformSafeKey(key, QLatin1String("qipc_systemsem_"));
+    }
+
+#ifdef Q_OS_WIN
+    HANDLE handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
+#else
+    key_t handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
+#endif
+    void setErrorString(const QString &function);
+    void cleanHandle();
+    bool modifySemaphore(int count);
+
+    QString key;
+    QString fileName;
+    int initialValue;
+#ifdef Q_OS_WIN
+    HANDLE semaphore;
+    HANDLE semaphoreLock;
+#else
+    int semaphore;
+    bool createdFile;
+    bool createdSemaphore;
+    key_t unix_key;
+#endif
+
+    QString errorString;
+    QSystemSemaphore::SystemSemaphoreError error;
+};
+
+#endif // QT_NO_SYSTEMSEMAPHORE
+
+
+QT_END_NAMESPACE
+#endif // QSYSTEMSEMAPHORE_P_H
+