stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/polygon/segment_traits.hpp

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+// Boost.Polygon library segment_traits.hpp header file
+
+// Copyright (c) Intel Corporation 2008.
+// Copyright (c) 2008-2012 Simonson Lucanus.
+// Copyright (c) 2012-2012 Andrii Sydorchuk.
+
+// See http://www.boost.org for updates, documentation, and revision history.
+// Use, modification and distribution is 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)
+
+#ifndef BOOST_POLYGON_SEGMENT_TRAITS_HPP
+#define BOOST_POLYGON_SEGMENT_TRAITS_HPP
+
+#include "isotropy.hpp"
+
+namespace boost {
+namespace polygon {
+
+template <typename Segment>
+struct segment_traits {
+  typedef Segment segment_type;
+  typedef typename segment_type::point_type point_type;
+  typedef typename segment_type::coordinate_type coordinate_type;
+
+  static point_type get(
+      const segment_type& segment, direction_1d dir) {
+    return segment.get(dir);
+  }
+};
+
+template <typename Segment>
+struct segment_mutable_traits {
+  typedef Segment segment_type;
+  typedef typename segment_type::point_type point_type;
+  typedef typename segment_type::coordinate_type coordinate_type;
+
+  static void set(
+      segment_type& segment, direction_1d dir, const point_type& point) {
+    segment.set(dir, point);
+  }
+
+  static segment_type construct(const point_type& low, const point_type& high) {
+    return segment_type(low, high);
+  }
+};
+}  // polygon
+}  // boost
+
+#endif  // BOOST_POLYGON_SEGMENT_TRAITS_HPP