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diff --git a/cppuhelper/inc/cppuhelper/basemutex.hxx b/cppuhelper/inc/cppuhelper/basemutex.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _CPPUHELPER_BASEMUTEX_HXX_
+#define _CPPUHELPER_BASEMUTEX_HXX_
+
+#include <osl/mutex.hxx>
+
+namespace cppu
+{
+    /** base class for all classes who want derive from
+     ::cppu::WeakComponentImplHelperXX.
+
+     Implmentation classes have first to derive from BaseMutex and then from
+     ::cppu::WeakComponentImplHelperXX to ensure that the BaseMutex is completely
+     initialized when the mutex is used to intialize the
+     ::cppu::WeakComponentImplHelperXX
+    */
+    class BaseMutex
+    {
+    protected:
+        mutable ::osl::Mutex m_aMutex;
+    };
+}
+#endif // _CPPUHELPER_BASEMUTEX_HXX_
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */