add boost on mac

macx64/include/boost/fiber/fixedsize_stack.hpp

@@ -0,0 +1,33 @@
+
+//          Copyright Oliver Kowalke 2014.
+// 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_FIBERS_FIXEDSIZE_STACK_H
+#define BOOST_FIBERS_FIXEDSIZE_STACK_H
+
+#include <boost/config.hpp>
+#include <boost/context/fixedsize_stack.hpp>
+
+#include <boost/fiber/detail/config.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_PREFIX
+#endif
+
+namespace boost {
+namespace fibers {
+
+using fixedsize_stack = boost::context::fixedsize_stack;
+#if !defined(BOOST_USE_SEGMENTED_STACKS)
+using   default_stack = boost::context::default_stack;
+#endif
+
+}}
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_FIBERS_FIXEDSIZE_STACK_H