http://www.biais.org/blog/index.php/2007/06/25/50-how-to-write-caml-extensions-for-python
http://www.mega-nerd.com/erikd/Blog/CodeHacking/Ocaml/index.html
http://www.ocaml-tutorial.org/calling_c_libraries
http://caml.inria.fr/pub/docs/manual-ocaml/manual032.html


http://www.linux-nantes.org/~fmonnier/OCaml/ocaml-wrapping-c.php