[MacPorts] #52844: Upgrade ocaml to 4.04.0

[MacPorts]

#52844: Upgrade ocaml to 4.04.0
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  Reporter:  pmetzger  |      Owner:  larryv
      Type:  update    |     Status:  accepted
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  haspatch
      Port:  ocaml     |
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Comment (by pmetzger):

 Howdy! It is now the case that one would want to update to OCaml 4.05.0
 instead.

 Also, unless we do this update, I can't fix other things. For example, the
 latest Coq, which I've been wanting to update to forever, requires a much
 newer OCaml. Could we do the update?

 We'll def. need an ocamlbuild package, and probably to make sure that
 ocaml-findlib is up to date since ocamlfind is needed by so many ocaml
 packages.

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Ticket URL: <https://trac.macports.org/ticket/52844#comment:7>
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