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/config/stdlib/libcpp.hpp b/boost/config/stdlib/libcpp.hpp
new file mode 100644
index 0000000..3d57440
--- /dev/null
+++ b/boost/config/stdlib/libcpp.hpp
@@ -0,0 +1,37 @@
+// (C) Copyright Christopher Jefferson 2011.
+// Use, modification and distribution are subject to 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)
+
+// See http://www.boost.org for most recent version.
+
+// config for libc++
+// Might need more in here later.
+
+#if !defined(_LIBCPP_VERSION)
+# include <ciso646>
+# if !defined(_LIBCPP_VERSION)
+# error "This is not libc++!"
+# endif
+#endif
+
+#define BOOST_STDLIB "libc++ version " BOOST_STRINGIZE(_LIBCPP_VERSION)
+
+#define BOOST_HAS_THREADS
+
+#ifdef _LIBCPP_HAS_NO_VARIADICS
+# define BOOST_NO_CXX11_HDR_TUPLE
+#endif
+
+//
+// These appear to be unusable/incomplete so far:
+//
+# define BOOST_NO_CXX11_HDR_CHRONO
+# define BOOST_NO_CXX11_HDR_FUTURE
+# define BOOST_NO_CXX11_HDR_TYPE_TRAITS
+# define BOOST_NO_CXX11_ATOMIC_SMART_PTR
+
+// libc++ uses a non-standard messages_base
+#define BOOST_NO_STD_MESSAGES
+
+// --- end ---