OCaml is an implementation of the ML language, based on the Caml Light dialect extended with a complete class-based object system and a powerful module system in the style of Standard ML.

OCamlbuild was distributed as part of the OCaml distribution for OCaml versions between 3.10.0 and 4.02.3. Starting from OCaml 4.03, it is now released separately (with its own version numbering).

You should refer to the OCambuild manual for more informations on how to use ocamlbuild.