The repository contains 3rd-party code in the following locations and
under the following licenses:

- various files in src/ are copied from https://github.com/ocaml/ocaml-re:

    src/re.ml
    src/re.mli
    src/re_automata.ml
    src/re_automata.mli
    src/re_cset.ml
    src/re_cset.mli
    src/re_fmt.ml

  See a copy of the license in LICENSE.ocaml-re