add boost on mac

macx64/include/boost/multiprecision/detail/rebind.hpp

@@ -0,0 +1,24 @@
+///////////////////////////////////////////////////////////////////////////////
+//  Copyright 2012 John Maddock.
+//  Copyright Christopher Kormanyos 2013. 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)
+//
+
+#ifndef BOOST_MP_DETAIL_REBIND_HPP
+  #define BOOST_MP_DETAIL_REBIND_HPP
+
+  namespace boost { namespace multiprecision { namespace backends { namespace detail
+  {
+    template <class value_type, class my_allocator>
+    struct rebind
+    {
+#ifndef BOOST_NO_CXX11_ALLOCATOR
+       typedef typename std::allocator_traits<my_allocator>::template rebind_alloc<value_type> type;
+#else
+       typedef typename my_allocator::template rebind<value_type>::other type;
+#endif
+    };
+  } } } } // namespace boost::multiprecision::backends::detail
+
+#endif // BOOST_MP_DETAIL_REBIND_HPP