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diff --git a/salhelper/inc/salhelper/queue.hxx b/salhelper/inc/salhelper/queue.hxx
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+/*************************************************************************
+ *
+ * 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 _SALHELPER_QUEUE_HXX_
+#define _SALHELPER_QUEUE_HXX_
+
+#include <sal/types.h>
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+#ifndef _OSL_SEMAPHOR_HXX_
+#include <osl/semaphor.hxx>
+#endif
+
+#ifndef __LIST__
+#include <list>
+#endif
+
+namespace salhelper
+{
+
+//----------------------------------------------------------------------------
+
+#ifndef SALHELPER_COPYCTOR_API
+#define SALHELPER_COPYCTOR_API(C) C (const C&); C& operator= (const C&)
+#endif
+
+//----------------------------------------------------------------------------
+
+template<class element_type>
+class QueueBase : protected std::list<element_type>
+{
+    /** Representation.
+     */
+    osl::Mutex m_aMutex;
+
+    /** Not implemented.
+     */
+    SALHELPER_COPYCTOR_API(QueueBase<element_type>);
+
+public:
+    inline QueueBase()
+    {}
+
+    inline ~QueueBase()
+    {
+        erase (this->begin(), this->end());
+    }
+
+    inline void put (const element_type& element)
+    {
+        osl::MutexGuard aGuard (m_aMutex);
+        push_back (element);
+    }
+
+    inline element_type get()
+    {
+        element_type element;
+
+        osl::MutexGuard aGuard (m_aMutex);
+        if (!this->empty())
+        {
+            element = this->front();
+            this->pop_front();
+        }
+
+        return (element);
+    }
+};
+
+//----------------------------------------------------------------------------
+
+/** Queue.
+
+    @deprecated
+    Must not be used, as it internally uses unnamed semaphores, which are not
+    supported on Mac OS X.
+*/
+template<class element_type>
+class Queue : protected QueueBase<element_type>
+{
+    /** Representation.
+     */
+    osl::Semaphore m_aNotEmpty;
+
+    /** Not implemented.
+     */
+    SALHELPER_COPYCTOR_API(Queue<element_type>);
+
+public:
+    inline Queue() : m_aNotEmpty (static_cast< sal_uInt32 >(0))
+    {}
+
+    inline ~Queue()
+    {}
+
+    inline void put (const element_type& element)
+    {
+        QueueBase<element_type>::put (element);
+        m_aNotEmpty.release();
+    }
+
+    inline element_type get()
+    {
+        element_type element;
+
+        m_aNotEmpty.acquire();
+        element = QueueBase<element_type>::get();
+
+        return (element);
+    }
+};
+
+//----------------------------------------------------------------------------
+
+/** Bounded queue.
+
+    @deprecated
+    Must not be used, as it internally uses unnamed semaphores, which are not
+    supported on Mac OS X.
+*/
+template<class element_type>
+class BoundedQueue : protected Queue<element_type>
+{
+    /** Representation.
+     */
+    osl::Semaphore m_aNotFull;
+
+    /** Not implemented.
+     */
+    SALHELPER_COPYCTOR_API(BoundedQueue<element_type>);
+
+public:
+    inline BoundedQueue (sal_uInt32 capacity) : m_aNotFull (capacity)
+    {
+        OSL_POSTCOND(capacity, "BoundedQueue:BoundedQueue(): no capacity");
+    }
+
+    inline ~BoundedQueue()
+    {}
+
+    inline void put (const element_type& element)
+    {
+        m_aNotFull.acquire();
+        Queue<element_type>::put (element);
+    }
+
+    inline element_type get()
+    {
+        element_type element;
+
+        element = Queue<element_type>::get();
+        m_aNotFull.release();
+
+        return (element);
+    }
+};
+
+//----------------------------------------------------------------------------
+
+} // namespace salhelper
+
+#endif /* !_SALHELPER_QUEUE_HXX_ */