ocaml.txt

bash-3.2$ brew info ocaml
ocaml: stable 4.06.1 (bottled), HEAD
General purpose programming language in the ML family
https://ocaml.org/
/usr/local/Cellar/ocaml/4.06.1 (1,989 files, 225.8MB) *
  Poured from bottle on 2018-04-26 at 20:46:14
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/ocaml.rb
==> Requirements
Optional: x11 ✘
==> Options
--with-flambda
	Install with flambda support
--with-x11
	Install with the Graphics module
--HEAD
	Install HEAD version

opam.txt

bash-3.2$ brew info opam
opam: stable 1.2.2 (bottled), HEAD
Package manager for OCaml
https://opam.ocaml.org
/usr/local/Cellar/opam/1.2.2_4 (31 files, 16.3MB) *
  Poured from bottle on 2018-04-26 at 20:46:55
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/opam.rb
==> Dependencies
Recommended: ocaml ✔, camlp4 ✔, aspcud ✔
==> Options
--without-aspcud
	Build without aspcud support
--without-camlp4
	Build without camlp4 support
--without-ocaml
	Build without ocaml support
--HEAD
	Install HEAD version
==> Caveats
OPAM uses ~/.opam by default for its package database, so you need to
initialize it first by running (as a normal user):

$  opam init

Run the following to initialize your environment variables:

$  eval `opam config env`

To export the needed variables every time, add them to your dotfiles.
  * On Bash, add them to `~/.bash_profile`.
  * On Zsh, add them to `~/.zprofile` or `~/.zshrc` instead.

Documentation and tutorials are available at https://opam.ocaml.org, or
via "man opam" and "opam --help".

Bash completion has been installed to:
  /usr/local/etc/bash_completion.d

zsh completions have been installed to:
  /usr/local/share/zsh/site-functions