Brew install is broken due to ocaml version

[guyneedham]

brew tap markeissler/hyperkit
brew install hyperkit

[ERROR] mirage-block-unix.2.7.0 is not available because your system doesn't
comply with ocaml-version >= "4.02.3" & ocaml-version < "4.06.0".

Homebrew now installs Ocaml 4.06.1.

[RichWellum]

Also seeing the same issue, in my case it's version 4.07.0

[ERROR] mirage-block-unix.2.7.0 is not available because your system doesn't
comply with ocaml-version >= "4.02.3" & ocaml-version < "4.06.0".

If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
https://github.com/markeissler/homebrew-hyperkit/issues

rkw:flagship richardwellum$ ocaml --version
The OCaml toplevel, version 4.07.0

[alphara]

Any ideas on how to fix?

[alphara]

The following instructions work for me.

We can switch on 4.05.0 version of ocaml:

brew uninstall ocaml        # if installed
wget https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh -O - | sh -s /usr/local/bin
opam init
opam switch 4.05.0
eval `opam config env`
ocaml --version

Then install all other packages (exluding ocaml) according https://github.com/moby/hyperkit