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

depends/x86_64-pc-linux-gnu/include/boost/geometry/strategies/cartesian/azimuth.hpp

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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2016-2017 Oracle and/or its affiliates.
+// Contributed and/or modified by Vissarion Fisikopoulos, on behalf of Oracle
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// 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_GEOMETRY_STRATEGIES_CARTESIAN_AZIMUTH_HPP
+#define BOOST_GEOMETRY_STRATEGIES_CARTESIAN_AZIMUTH_HPP
+
+#include <boost/geometry/core/tags.hpp>
+
+namespace boost { namespace geometry
+{
+
+namespace strategy { namespace azimuth
+{
+
+template
+<
+    typename CalculationType = void
+>
+class cartesian
+{};
+
+#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
+
+namespace services
+{
+
+template <typename CalculationType>
+struct default_strategy<cartesian_tag, CalculationType>
+{
+    typedef strategy::azimuth::cartesian<CalculationType> type;
+};
+
+}
+
+#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
+
+}} // namespace strategy::azimuth
+
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_STRATEGIES_CARTESIAN_AZIMUTH_HPP