Added arch to include dirs.
Bumped version to 2.0.0.7.
Added -fPIC to build flags.
Bumped version to 2.0.0.8.
Added empty fallback for cxxflags.
Bumped version to 2.0.0.9.
Added stub for Rubinius::ToolSet for bootstrapping.
Bumped version to 2.0.0.10.