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diff --git a/src/corelib/io/qfilesystemwatcher_polling_p.h b/src/corelib/io/qfilesystemwatcher_polling_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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 1.1, 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 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QFILESYSTEMWATCHER_POLLING_P_H
+#define QFILESYSTEMWATCHER_POLLING_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of the QLibrary class.  This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qfileinfo.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qdatetime.h>
+#include <QtCore/qdir.h>
+#include <QtCore/qtimer.h>
+
+#include "qfilesystemwatcher_p.h"
+
+QT_BEGIN_NAMESPACE
+
+enum { PollingInterval = 1000 };
+
+class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
+{
+    Q_OBJECT
+
+    class FileInfo
+    {
+        uint ownerId;
+        uint groupId;
+        QFile::Permissions permissions;
+        QDateTime lastModified;
+        QStringList entries;
+
+    public:
+        FileInfo(const QFileInfo &fileInfo)
+            : ownerId(fileInfo.ownerId()),
+              groupId(fileInfo.groupId()),
+              permissions(fileInfo.permissions()),
+              lastModified(fileInfo.lastModified())
+        {
+            if (fileInfo.isDir()) {
+                entries = fileInfo.absoluteDir().entryList(QDir::AllEntries);
+            }
+        }
+        FileInfo &operator=(const QFileInfo &fileInfo)
+        {
+            *this = FileInfo(fileInfo);
+            return *this;
+        }
+
+        bool operator!=(const QFileInfo &fileInfo) const
+        {
+            if (fileInfo.isDir() && entries != fileInfo.absoluteDir().entryList(QDir::AllEntries))
+                return true;
+            return (ownerId != fileInfo.ownerId()
+                    || groupId != fileInfo.groupId()
+                    || permissions != fileInfo.permissions()
+                    || lastModified != fileInfo.lastModified());
+        }
+    };
+
+    QHash<QString, FileInfo> files, directories;
+
+public:
+    QPollingFileSystemWatcherEngine(QObject *parent);
+
+    QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories);
+    QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories);
+
+private Q_SLOTS:
+    void timeout();
+
+private:
+    QTimer timer;
+};
+
+QT_END_NAMESPACE
+
+#endif // QFILESYSTEMWATCHER_POLLING_P_H
+