nixpkgs/pkgs/build-support/ocaml/dune.nix

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{ stdenv, fetchurl, ocaml, findlib, dune }:
{ pname, version, buildInputs ? [], ... }@args:
if args ? minimumOCamlVersion &&
! stdenv.lib.versionAtLeast ocaml.version args.minimumOCamlVersion
then throw "${pname}-${version} is not available for OCaml ${ocaml.version}"
else
stdenv.mkDerivation ({
buildPhase = "dune build -p ${pname}";
checkPhase = "dune runtest -p ${pname}";
inherit (dune) installPhase;
meta.platform = ocaml.meta.platform;
} // args // {
name = "ocaml${ocaml.version}-${pname}-${version}";
buildInputs = [ ocaml dune findlib ] ++ buildInputs;
})