depot/pkgs/development/ocaml-modules/facile/default.nix

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{ lib, fetchurl, buildDunePackage, ocaml }:
lib.throwIf (lib.versionAtLeast ocaml.version "5.0")
"facile is not available for OCaml 5.0"
buildDunePackage rec {
pname = "facile";
version = "1.1.4";
src = fetchurl {
url = "https://github.com/Emmanuel-PLF/facile/releases/download/${version}/facile-${version}.tbz";
sha256 = "0jqrwmn6fr2vj2rrbllwxq4cmxykv7zh0y4vnngx29f5084a04jp";
};
doCheck = true;
duneVersion = if lib.versionAtLeast ocaml.version "4.12" then "2" else "1";
postPatch = lib.optionalString (duneVersion != "1") "dune upgrade";
meta = {
homepage = "http://opti.recherche.enac.fr/facile/";
license = lib.licenses.lgpl21Plus;
description = "Functional Constraint Library";
};
}