{
  lib,
  fetchurl,
  buildDunePackage,
  ocaml,
  ounit,
  ppx_deriving,
  ppx_sexp_conv,
  ppxlib,
  version ? if lib.versionAtLeast ocaml.version "4.11" then "1.11.0" else "1.9.1",
}:

lib.throwIfNot (lib.versionAtLeast ppxlib.version "0.24.0")
  "ppx_import is not available with ppxlib-${ppxlib.version}"

  buildDunePackage
  rec {
    pname = "ppx_import";
    inherit version;

    minimalOCamlVersion = "4.05";

    src = fetchurl {
      url =
        let
          dir = if lib.versionAtLeast version "1.11" then "v${version}" else "${version}";
        in
        "https://github.com/ocaml-ppx/ppx_import/releases/download/${dir}/ppx_import-${version}.tbz";

      hash =
        {
          "1.9.1" = "sha256-0bSY4u44Ds84XPIbcT5Vt4AG/4PkzFKMl9CDGFZyIdI=";
          "1.11.0" = "sha256-Jmfv1IkQoaTkyxoxp9FI0ChNESqCaoDsA7D4ZUbOrBo=";
        }
        ."${version}";
    };

    propagatedBuildInputs = [
      ppxlib
    ];

    checkInputs = [
      ounit
      ppx_deriving
      ppx_sexp_conv
    ];

    doCheck = true;

    meta = {
      description = "Syntax extension for importing declarations from interface files";
      license = lib.licenses.mit;
      homepage = "https://github.com/ocaml-ppx/ppx_import";
    };
  }