{stdenv, fetchurl, ocaml, findlib, type_conv, camlp4}: if !stdenv.lib.versionAtLeast ocaml.version "4.00" || stdenv.lib.versionAtLeast ocaml.version "4.03" then throw "sexlib-111.25.00 is not available for OCaml ${ocaml.version}" else stdenv.mkDerivation { name = "ocaml-sexplib-111.25.00"; src = fetchurl { url = "https://ocaml.janestreet.com/ocaml-core/111.25.00/individual/sexplib-111.25.00.tar.gz"; sha256 = "0qh0zqp5nakqpmmhh4x7cg03vqj3j2bj4zj0nqdlksai188p9ila"; }; buildInputs = [ocaml findlib]; propagatedBuildInputs = [type_conv camlp4]; createFindlibDestdir = true; meta = with stdenv.lib; { homepage = "https://ocaml.janestreet.com/"; description = "Library for serializing OCaml values to and from S-expressions"; license = licenses.asl20; maintainers = [ maintainers.vbgl maintainers.ericbmerritt ]; platforms = ocaml.meta.platforms or []; }; }