If no HAVE_STD_SHARED_PTR or HAVE_BOOST_SHARED_PTR then set ptr_lib to ndnboost in the boost headers in this distribution.
diff --git a/boost/smart_ptr/detail/sp_nullptr_t.hpp b/boost/smart_ptr/detail/sp_nullptr_t.hpp
new file mode 100644
index 0000000..2375927
--- /dev/null
+++ b/boost/smart_ptr/detail/sp_nullptr_t.hpp
@@ -0,0 +1,45 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// detail/sp_nullptr_t.hpp
+//
+// Copyright 2013 Peter Dimov
+//
+// 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
+
+#include <boost/config.hpp>
+#include <cstddef>
+
+#if !defined( BOOST_NO_CXX11_NULLPTR )
+
+namespace ndnboost
+{
+
+namespace detail
+{
+
+#if defined( __clang__ ) && !defined( _LIBCPP_VERSION ) && !defined( BOOST_NO_CXX11_DECLTYPE )
+
+ typedef decltype(nullptr) sp_nullptr_t;
+
+#else
+
+ typedef std::nullptr_t sp_nullptr_t;
+
+#endif
+
+} // namespace detail
+
+} // namespace ndnboost
+
+#endif // !defined( BOOST_NO_CXX11_NULLPTR )
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED