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

depends/x86_64-pc-linux-gnu/include/boost/python/object_fwd.hpp

@@ -0,0 +1,18 @@
+// Copyright David Abrahams 2002.
+// 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 OBJECT_FWD_DWA2002724_HPP
+# define OBJECT_FWD_DWA2002724_HPP
+
+# include <boost/python/detail/prefix.hpp>
+
+namespace boost { namespace python { 
+namespace api
+{
+  class object;
+}
+using api::object;
+}} // namespace boost::python
+
+#endif // OBJECT_FWD_DWA2002724_HPP