add boost on mac

macx64/include/boost/gil/extension/toolbox/dynamic_images.hpp

@@ -0,0 +1,31 @@
+//
+// Copyright 2005-2007 Adobe Systems Incorporated
+//
+// 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_GIL_EXTENSION_TOOLBOX_DYNAMIC_IMAGES_HPP
+#define BOOST_GIL_EXTENSION_TOOLBOX_DYNAMIC_IMAGES_HPP
+
+#include <boost/gil/extension/dynamic_image/dynamic_image_all.hpp>
+
+#include <boost/mpl/at.hpp>
+#include <boost/mpl/size.hpp>
+
+namespace boost { namespace gil {
+
+// need this for various meta functions.
+struct any_image_pixel_t       {};
+struct any_image_channel_t     {};
+struct any_image_color_space_t {};
+
+template<>
+struct color_space_type< any_image_pixel_t >
+{
+    using type = any_image_color_space_t;
+};
+
+}} // namespace boost::gil
+
+#endif