diff --git a/include/boost/mpl/empty_base.hpp b/include/boost/mpl/empty_base.hpp
new file mode 100644
index 0000000..1c9421e
--- /dev/null
+++ b/include/boost/mpl/empty_base.hpp
@@ -0,0 +1,61 @@
+//-----------------------------------------------------------------------------
+// boost mpl/empty_base.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2001-02
+// Aleksey Gurtovoy
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#ifndef BOOST_MPL_EMPTY_BASE_HPP_INCLUDED
+#define BOOST_MPL_EMPTY_BASE_HPP_INCLUDED
+
+#include "boost/type_traits/is_empty.hpp"
+#include "boost/mpl/bool_c.hpp"
+#include "boost/config.hpp"
+
+// should be always the last #include directive
+#include "boost/type_traits/detail/bool_trait_def.hpp"
+
+namespace boost {
+namespace mpl {
+
+// empty base class, guaranteed to have no members; inheritance from
+// 'empty_base' through the 'inherit' metafunction is a no-op - see 
+// "mpl/inherit.hpp" header for the details
+struct empty_base {};
+
+template< typename T >
+struct is_empty_base
+    : false_c
+{
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+    using false_c::value;
+#endif
+};
+
+template<>
+struct is_empty_base<empty_base>
+    : true_c
+{
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+    using true_c::value;
+#endif
+};
+
+} // namespace mpl
+
+BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_empty, mpl::empty_base, true)
+
+} // namespace boost
+
+#include "boost/type_traits/detail/bool_trait_undef.hpp"
+
+#endif // BOOST_MPL_EMPTY_BASE_HPP_INCLUDED
diff --git a/include/boost/mpl/inherit.hpp b/include/boost/mpl/inherit.hpp
new file mode 100644
index 0000000..2189628
--- /dev/null
+++ b/include/boost/mpl/inherit.hpp
@@ -0,0 +1,220 @@
+//-----------------------------------------------------------------------------
+// boost mpl/inherit.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2001-02
+// Aleksey Gurtovoy
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#if !defined(BOOST_PP_IS_ITERATING)
+
+///// header body
+
+#ifndef BOOST_MPL_INHERIT_HPP_INCLUDED
+#define BOOST_MPL_INHERIT_HPP_INCLUDED
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include "boost/mpl/empty_base.hpp"
+#   include "boost/mpl/aux_/void_spec.hpp"
+#   include "boost/mpl/aux_/lambda_support.hpp"
+#endif
+
+#include "boost/mpl/aux_/config/use_preprocessed.hpp"
+
+#if 0 //defined(BOOST_MPL_USE_PREPROCESSED_HEADERS)
+ //&& !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER inherit.hpp
+#   include "boost/mpl/aux_/include_preprocessed.hpp"
+
+#else
+
+#   include "boost/mpl/aux_/preprocessor/params.hpp"
+#   include "boost/mpl/aux_/preprocessor/default_params.hpp"
+#   include "boost/mpl/limits/arity.hpp"
+
+#   include "boost/preprocessor/iterate.hpp"
+#   include "boost/preprocessor/dec.hpp"
+#   include "boost/preprocessor/cat.hpp"
+#   include "boost/config.hpp"
+
+namespace boost {
+namespace mpl {
+
+// 'inherit<T1,T2,..,Tn>' metafunction; returns an unspecified class type
+// produced by public derivation from all metafunction's parameters 
+// (T1,T2,..,Tn), except the parameters of 'empty_base' class type; 
+// regardless the position and number of 'empty_base' parameters in the 
+// metafunction's argument list, derivation from them is always a no-op;
+// for instance:
+//      inherit<her>::type == her
+//      inherit<her,my>::type == struct unspecified : her, my {};
+//      inherit<empty_base,her>::type == her
+//      inherit<empty_base,her,empty_base,empty_base>::type == her
+//      inherit<her,empty_base,my>::type == struct unspecified : her, my {};
+//      inherit<empty_base,empty_base>::type == empty_base
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template< 
+      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T1)
+    , typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T2)
+    > 
+struct inherit2
+    : T1, T2
+{
+    typedef inherit2 type;
+};
+
+template< typename T1 > 
+struct inherit2<T1,empty_base>
+{
+    typedef T1 type;
+};
+
+template< typename T2 > 
+struct inherit2<empty_base,T2>
+{
+    typedef T2 type;
+};
+
+// needed to disambiguate the previous two in case when both 
+// T1 and T2 == empty_base
+template<> 
+struct inherit2<empty_base,empty_base>
+{
+    typedef empty_base type;
+};
+
+#else
+
+namespace aux {
+
+template< bool C1, bool C2 >
+struct inherit2_impl
+{
+    template< typename Derived, typename T1, typename T2 > struct result_ 
+        : T1, T2
+    {
+        typedef Derived type_;
+    };
+};
+
+template<>
+struct inherit2_impl<false,true>
+{
+    template< typename Derived, typename T1, typename T2 > struct result_
+        : T1
+    {
+        typedef T1 type_;
+    };
+};
+
+template<>
+struct inherit2_impl<true,false>
+{
+    template< typename Derived, typename T1, typename T2 > struct result_
+        : T2 
+    {
+        typedef T2 type_;
+    };
+};
+
+template<>
+struct inherit2_impl<true,true>
+{
+    template< typename Derived, typename T1, typename T2 > struct result_
+    {
+        typedef T1 type_;
+    };
+};
+
+} // namespace aux
+
+template< 
+      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T1)
+    , typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T2)
+    > 
+struct inherit2
+    : aux::inherit2_impl<
+          is_empty_base<T1>::value
+        , is_empty_base<T2>::value
+        >::template result_< inherit2<T1,T2>,T1,T2 >
+{
+    typedef typename inherit2::type_ type;
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,inherit2,(T1,T2))
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+BOOST_MPL_AUX_VOID_SPEC(2, inherit2)
+
+#define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(3, BOOST_MPL_METAFUNCTION_MAX_ARITY, "boost/mpl/inherit.hpp"))
+#include BOOST_PP_ITERATE()
+
+} // namespace mpl
+} // namespace boost
+
+#endif // BOOST_MPL_USE_PREPROCESSED_HEADERS
+#endif // BOOST_MPL_INHERIT_HPP_INCLUDED
+
+///// iteration
+
+#else
+#define n BOOST_PP_FRAME_ITERATION(1)
+
+template<
+      BOOST_MPL_PP_DEFAULT_PARAMS(n, typename T, void_)
+    >
+struct BOOST_PP_CAT(inherit,n)
+    : inherit2<
+          typename BOOST_PP_CAT(inherit,BOOST_PP_DEC(n))<
+              BOOST_MPL_PP_PARAMS(BOOST_PP_DEC(n), T)
+            >::type
+        , BOOST_PP_CAT(T,n)
+        >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(n,BOOST_PP_CAT(inherit,n),(BOOST_MPL_PP_PARAMS(n, T)))
+};
+
+BOOST_MPL_AUX_VOID_SPEC(n, BOOST_PP_CAT(inherit,n))
+
+#if n == BOOST_MPL_METAFUNCTION_MAX_ARITY
+//: primary template
+template<
+      BOOST_MPL_PP_DEFAULT_PARAMS(n, typename T, empty_base)
+    >
+struct inherit
+    : BOOST_PP_CAT(inherit,n)<BOOST_MPL_PP_PARAMS(n, T)>
+{
+};
+
+// 'void_' specialization
+template<>
+struct inherit< BOOST_MPL_AUX_VOID_SPEC_PARAMS(n) >
+{
+    template<
+          BOOST_MPL_PP_NESTED_DEF_PARAMS_TAIL(0, typename T, empty_base)
+        >
+    struct apply
+        : inherit< BOOST_MPL_PP_PARAMS(n, T) >
+    {
+    };
+};
+
+BOOST_MPL_AUX_VOID_SPEC_LAMBDA(n, inherit)
+BOOST_MPL_AUX_VOID_SPEC_ARITY(n, inherit)
+BOOST_MPL_AUX_VOID_SPEC_TEMPLATE_ARITY(n, n, inherit)
+#endif
+
+#undef n
+#endif // BOOST_PP_IS_ITERATING
diff --git a/include/boost/mpl/inherit_linearly.hpp b/include/boost/mpl/inherit_linearly.hpp
new file mode 100644
index 0000000..d643c34
--- /dev/null
+++ b/include/boost/mpl/inherit_linearly.hpp
@@ -0,0 +1,44 @@
+//-----------------------------------------------------------------------------
+// boost mpl/inherit_linearly.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2001-02
+// Aleksey Gurtovoy
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#ifndef BOOST_MPL_INHERIT_FRONT_TO_BACK_HPP_INCLUDED
+#define BOOST_MPL_INHERIT_FRONT_TO_BACK_HPP_INCLUDED
+
+#include "boost/mpl/fold.hpp"
+#include "boost/mpl/empty_base.hpp"
+#include "boost/mpl/aux_/void_spec.hpp"
+#include "boost/mpl/aux_/lambda_support.hpp"
+
+namespace boost {
+namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Types_)
+    , typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Node_)
+    , typename Root_ = empty_base
+    >
+struct inherit_linearly
+    : fold<Types_,Root_,Node_>
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(3,inherit_linearly,(Types_,Node_,Root_))
+};
+
+BOOST_MPL_AUX_VOID_SPEC(2, inherit_linearly)
+
+} // namespace mpl
+} // namespace boost
+
+#endif // BOOST_MPL_INHERIT_FRONT_TO_BACK_HPP_INCLUDED