Use topkg to build and install the package.

[yallop]

This makes the build system much easier to maintain, and also fixes #5.

I'm not sure whether the map/readdir in pkg/build.ml is considered good practice for installing the examples (/cc @dbuenzli).

[dbuenzli]

You can remove the dependency on ocamlfind if you wish so (see below). Also at least add {build} tags on both dependencies.

[dbuenzli]

Also your META file:

version = "0.1.0"
description = "Library for higher-kinded programming"
archive(byte) = "higher.cma"
archive(native) = "higher.cmxa"
exists_if = "higher.cma"

is missing a few things. It should be:

version = "0.1.0"
description = "Library for higher-kinded programming"
archive(byte) = "higher.cma"
archive(byte,plugin) = "higher.cma"
archive(native) = "higher.cmxa"
archive(native,plugin) = "higher.cmxs"

(no need for the exists_if)

[yallop]

Thanks for the suggestions, @dbuenzli! I've incorporated them in 5a3fba2, 4fb2cdc, b977461 and 93c33e5.