# ocaml setup.ml -build
# ocamlfind ocamlopt unix.cmxa -I /usr/lib/ocaml/ocamlbuild /usr/lib/ocaml/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /usr/lib/ocaml/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
# + ocamlfind ocamlopt unix.cmxa -I /usr/lib/ocaml/ocamlbuild /usr/lib/ocaml/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /usr/lib/ocaml/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
# File "myocamlbuild.ml", line 1:
# Error: /usr/lib/ocaml/ocamlbuild/ocamlbuild_plugin.cmi
# is not a compiled interface for this version of OCaml.
# It seems to be for an older version of OCaml.
# Command exited with code 2.