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diff --git a/include/cppu/EnvGuards.hxx b/include/cppu/EnvGuards.hxx
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+++ b/include/cppu/EnvGuards.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 .
+ */
+
+/*
+ * This file is part of LibreOffice published API.
+ */
+
+#ifndef INCLUDED_CPPU_ENVGUARDS_HXX
+#define INCLUDED_CPPU_ENVGUARDS_HXX
+
+#include "uno/environment.hxx"
+
+
+namespace cppu
+{
+    /** Environment Guard
+        The provided Environment becomes entered in the constructor and left
+        in the destructor.
+        (http://wiki.openoffice.org/wiki/Uno/Cpp/Spec/Environment_Guard)
+
+        @since UDK 3.2.7
+    */
+    class EnvGuard
+    {
+        css::uno::Environment m_env;
+
+    public:
+        explicit EnvGuard(css::uno::Environment const & env)
+        {
+            if (env.is())
+            {
+                m_env = css::uno::Environment::getCurrent();
+                env.enter();
+            }
+        }
+
+        ~EnvGuard()
+        {
+            m_env.enter();
+        }
+
+        /** Checks if the associated environment is non empty.
+
+            @return  0 == empty, 1 == non empty
+        */
+        bool SAL_CALL is() const
+        {
+            return m_env.is();
+        }
+
+        /** Leaves the associated environment and clears
+            the reference.
+        */
+        void clear()
+        {
+            if (m_env.is())
+            {
+                m_env.enter();
+                m_env.clear();
+            }
+        }
+    };
+
+    /** Environment Anti-Guard
+        Any entered Environment becomes left in the constructor and re-entered
+        in the destructor.
+        (http://wiki.openoffice.org/wiki/Uno/Cpp/Spec/Environment_AntiGuard)
+
+        @since UDK 3.2.7
+    */
+    class AntiEnvGuard
+    {
+        css::uno::Environment m_env;
+
+    public:
+        explicit AntiEnvGuard()
+            : m_env(css::uno::Environment::getCurrent())
+        {
+            uno_Environment_enter(NULL);
+        }
+
+        ~AntiEnvGuard()
+        {
+            m_env.enter();
+        }
+    };
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */