I notice several packages are “Compatibility packages” for supporting various versions of ocaml, for instance uchar or seq. If I’m using OCaml 4.10, In principle I need neither of them, but if I ask opam to install uutf it will install uchar, and if I want lwt it will install seq. Isn’t there a way to tell opam “install foo only if ocaml version < xx.xx”?
