{ lib, fetchFromGitHub, libev, buildDunePackage , ocaml, cppo, dune-configurator, ocplib-endian }: buildDunePackage rec { pname = "lwt"; version = "5.6.1"; minimalOCamlVersion = "4.08"; src = fetchFromGitHub { owner = "ocsigen"; repo = "lwt"; rev = version; sha256 = "sha256-XstKs0tMwliCyXnP0Vzi5WC27HKJGnATUYtbbQmH1TE="; }; postPatch = lib.optionalString (lib.versionAtLeast ocaml.version "5.0") '' substituteInPlace src/unix/dune \ --replace "libraries bigarray lwt" "libraries lwt" ''; nativeBuildInputs = [ cppo ]; buildInputs = [ dune-configurator ]; propagatedBuildInputs = [ libev ocplib-endian ]; meta = { homepage = "https://ocsigen.org/lwt/"; description = "A cooperative threads library for OCaml"; maintainers = [ lib.maintainers.vbgl ]; license = lib.licenses.mit; }; }