diff --git a/ndnboost/mpl/aux_/preprocessed/mwcw/bitor.hpp b/ndnboost/mpl/aux_/preprocessed/mwcw/bitor.hpp
new file mode 100644
index 0000000..c71a8f4
--- /dev/null
+++ b/ndnboost/mpl/aux_/preprocessed/mwcw/bitor.hpp
@@ -0,0 +1,147 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+// Copyright Jaap Suter 2003
+//
+// Distributed under the Boost Software License, Version 1.0. 
+// (See accompanying file LICENSE_1_0.txt or copy at 
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Preprocessed version of "ndnboost/mpl/bitor.hpp" header
+// -- DO NOT modify by hand!
+
+namespace ndnboost { namespace mpl {
+
+template<
+      typename Tag1
+    , typename Tag2
+    >
+struct bitor_impl
+    : if_c<
+          ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1)
+              > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2)
+            )
+
+        , aux::cast2nd_impl< bitor_impl< Tag1,Tag1 >,Tag1, Tag2 >
+        , aux::cast1st_impl< bitor_impl< Tag2,Tag2 >,Tag1, Tag2 >
+        >::type
+{
+};
+
+/// for Digital Mars C++/compilers with no CTPS/TTP support
+template<> struct bitor_impl< na,na >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template< typename Tag > struct bitor_impl< na,Tag >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template< typename Tag > struct bitor_impl< Tag,na >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template< typename T > struct bitor_tag
+{
+    typedef typename T::tag type;
+};
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(N1)
+    , typename BOOST_MPL_AUX_NA_PARAM(N2)
+    , typename N3 = na, typename N4 = na, typename N5 = na
+    >
+struct bitor_
+    : bitor_< bitor_< bitor_< bitor_< N1,N2 >, N3>, N4>, N5>
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(
+          5
+        , bitor_
+        , ( N1, N2, N3, N4, N5 )
+        )
+};
+
+template<
+      typename N1, typename N2, typename N3, typename N4
+    >
+struct bitor_< N1,N2,N3,N4,na >
+
+    : bitor_< bitor_< bitor_< N1,N2 >, N3>, N4>
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
+          5
+        , bitor_
+        , ( N1, N2, N3, N4, na )
+        )
+};
+
+template<
+      typename N1, typename N2, typename N3
+    >
+struct bitor_< N1,N2,N3,na,na >
+
+    : bitor_< bitor_< N1,N2 >, N3>
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
+          5
+        , bitor_
+        , ( N1, N2, N3, na, na )
+        )
+};
+
+template<
+      typename N1, typename N2
+    >
+struct bitor_< N1,N2,na,na,na >
+    : bitor_impl<
+          typename bitor_tag<N1>::type
+        , typename bitor_tag<N2>::type
+        >::template apply< N1,N2 >::type
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(
+          5
+        , bitor_
+        , ( N1, N2, na, na, na )
+        )
+
+};
+
+BOOST_MPL_AUX_NA_SPEC2(2, 5, bitor_)
+
+}}
+
+namespace ndnboost { namespace mpl {
+template<>
+struct bitor_impl< integral_c_tag,integral_c_tag >
+{
+    template< typename N1, typename N2 > struct apply
+
+        : integral_c<
+              typename aux::largest_int<
+                  typename N1::value_type
+                , typename N2::value_type
+                >::type
+            , ( BOOST_MPL_AUX_VALUE_WKND(N1)::value
+                  | BOOST_MPL_AUX_VALUE_WKND(N2)::value
+                )
+            >
+    {
+    };
+};
+
+}}