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

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

@@ -0,0 +1,24 @@
+// 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 CLASS_FWD_DWA200222_HPP
+# define CLASS_FWD_DWA200222_HPP
+
+# include <boost/python/detail/prefix.hpp>
+# include <boost/python/detail/not_specified.hpp>
+
+namespace boost { namespace python { 
+
+template <
+    class T // class being wrapped
+    // arbitrarily-ordered optional arguments. Full qualification needed for MSVC6
+    , class X1 = ::boost::python::detail::not_specified
+    , class X2 = ::boost::python::detail::not_specified
+    , class X3 = ::boost::python::detail::not_specified
+    >
+class class_;
+
+}} // namespace boost::python
+
+#endif // CLASS_FWD_DWA200222_HPP