pkgs/development/ocaml-modules/variantslib/default.nix


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{ stdenv, buildOcaml, ocaml, fetchurl, type_conv }:

if stdenv.lib.versionAtLeast ocaml.version "4.06"
then throw "variantslib-109.15.03 is not available for OCaml ${ocaml.version}"
else

buildOcaml rec {
  name = "variantslib";
  version = "109.15.03";

  minimumSupportedOcamlVersion = "4.00";

  src = fetchurl {
    url = "https://github.com/janestreet/variantslib/archive/${version}.tar.gz";
    sha256 = "a948dcdd4ca54786fe0646386b6e37a9db03bf276c6557ea374d82740bf18055";
  };

  propagatedBuildInputs = [ type_conv ];

  meta = with stdenv.lib; {
    homepage = "https://github.com/janestreet/variantslib";
    description = "OCaml variants as first class values";
    license = licenses.asl20;
    maintainers = [ maintainers.ericbmerritt ];
  };
}