nixpkgs/pkgs/development/ocaml-modules/lwt/ppx.nix

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{ fetchzip, buildDunePackage, lwt, ppx_tools_versioned }:
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buildDunePackage {
pname = "lwt_ppx";
version = "2.0.1";
src = fetchzip {
# `lwt_ppx` has a different release cycle than Lwt, but it's included in
# one of its release bundles.
# Because there could exist an Lwt release _without_ a `lwt_ppx` release,
# this `src` field doesn't inherit from the Lwt derivation.
#
# This is particularly useful for overriding Lwt without breaking `lwt_ppx`,
# as new Lwt releases may contain broken `lwt_ppx` code.
url = "https://github.com/ocsigen/lwt/archive/5.2.0.tar.gz";
sha256 = "1znw8ckwdmqsnrcgar4g33zgr659l4l904bllrz69bbwdnfmz2x3";
};
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propagatedBuildInputs = [ lwt ppx_tools_versioned ];
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meta = {
description = "Ppx syntax extension for Lwt";
inherit (lwt.meta) license homepage maintainers;
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};
}