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diff --git a/include/cppuhelper/weak.hxx b/include/cppuhelper/weak.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef _CPPUHELPER_WEAK_HXX_
+#define _CPPUHELPER_WEAK_HXX_
+
+#include <osl/interlck.h>
+#include <rtl/alloc.h>
+#include <cppuhelper/weakref.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <com/sun/star/uno/XWeak.hpp>
+#include "cppuhelperdllapi.h"
+
+
+namespace cppu
+{
+
+class OWeakConnectionPoint;
+
+/** Base class to implement an UNO object supporting weak references, i.e. the object can be held
+    weakly (by a ::com::sun::star::uno::WeakReference).
+    This implementation copes with reference counting.  Upon last release(), the virtual dtor
+    is called.
+
+    @derive
+    Inherit from this class and delegate acquire()/ release() calls.
+*/
+class CPPUHELPER_DLLPUBLIC OWeakObject : public ::com::sun::star::uno::XWeak
+{
+    friend class OWeakConnectionPoint;
+
+protected:
+    /** Virtual dtor.
+
+        @attention
+        Despite the fact that a RuntimeException is allowed to be thrown, you must not throw any
+        exception upon destruction!
+    */
+    virtual ~OWeakObject() SAL_THROW( (::com::sun::star::uno::RuntimeException) );
+
+    /** disposes and resets m_pWeakConnectionPoint
+        @pre
+            m_refCount equals 0
+    */
+    void    disposeWeakConnectionPoint();
+
+    /** reference count.
+
+        @attention
+        Don't modify manually!  Use acquire() and release().
+    */
+    oslInterlockedCount m_refCount;
+
+    /// @cond INTERNAL
+
+    /** Container of all weak reference listeners and the connection point from the weak reference.
+    */
+    OWeakConnectionPoint * m_pWeakConnectionPoint;
+
+    /** reserved for future use. do not use.
+    */
+    void * m_pReserved;
+
+    /// @endcond
+
+public:
+    /// @cond INTERNAL
+    // these are here to force memory de/allocation to sal lib.
+    inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW(())
+        { return ::rtl_allocateMemory( nSize ); }
+    inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW(())
+        { ::rtl_freeMemory( pMem ); }
+    inline static void * SAL_CALL operator new( size_t, void * pMem ) SAL_THROW(())
+        { return pMem; }
+    inline static void SAL_CALL operator delete( void *, void * ) SAL_THROW(())
+        {}
+    /// @endcond
+
+#ifdef _MSC_VER
+    /** Default Constructor.  Sets the reference count to zero.
+        Accidentally occurs in msvc mapfile = > had to be outlined.
+    */
+    OWeakObject() SAL_THROW(());
+#else
+    /** Default Constructor.  Sets the reference count to zero.
+    */
+    inline OWeakObject() SAL_THROW(())
+        : m_refCount( 0 )
+        , m_pWeakConnectionPoint( 0 )
+        {}
+#endif
+    /** Dummy copy constructor.  Set the reference count to zero.
+
+        @param rObj dummy param
+    */
+    inline OWeakObject( const OWeakObject & rObj ) SAL_THROW(())
+        : com::sun::star::uno::XWeak()
+        , m_refCount( 0 )
+        , m_pWeakConnectionPoint( 0 )
+        {
+        (void) rObj;
+        }
+    /** Dummy assignment operator. Does not affect reference count.
+
+        @return this OWeakObject
+    */
+    inline OWeakObject & SAL_CALL operator = ( const OWeakObject &)
+        SAL_THROW(())
+        { return *this; }
+
+    /** Basic queryInterface() implementation supporting \::com::sun::star::uno::XWeak and
+        \::com::sun::star::uno::XInterface.
+
+        @param rType demanded type
+        @return demanded type or empty any
+    */
+    virtual ::com::sun::star::uno::Any SAL_CALL queryInterface(
+        const ::com::sun::star::uno::Type & rType )
+        throw (::com::sun::star::uno::RuntimeException);
+    /** increasing m_refCount
+    */
+    virtual void SAL_CALL acquire()
+        throw ();
+    /** decreasing m_refCount
+    */
+    virtual void SAL_CALL release()
+        throw ();
+
+    /** XWeak::queryAdapter() implementation
+
+        @return a \::com::sun::star::uno::XAdapter reference
+    */
+    virtual ::com::sun::star::uno::Reference< ::com::sun::star::uno::XAdapter > SAL_CALL queryAdapter()
+        throw (::com::sun::star::uno::RuntimeException);
+
+    /** Cast operator to XInterface reference.
+
+        @return XInterface reference
+    */
+    inline SAL_CALL operator ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > () SAL_THROW(())
+        { return this; }
+};
+
+}
+
+#endif
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */