nixpkgs/pkgs/development/ocaml-modules/yojson/default.nix

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{ stdenv, fetchzip, ocaml, findlib, jbuilder, cppo, easy-format, biniou }:
let
pname = "yojson";
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param =
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if stdenv.lib.versionAtLeast ocaml.version "4.02" then {
version = "1.4.0";
sha256 = "0rzn4yihfi0psd2qmgrx5fvwpby87sqx4zws3ijf49f7wbpycccv";
buildInputs = [ jbuilder ];
extra = { inherit (jbuilder) installPhase; };
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} else {
version = "1.2.3";
sha256 = "10dvkndgwanvw4agbjln7kgb1n9s6lii7jw82kwxczl5rd1sgmvl";
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buildInputs = [];
extra = {
createFindlibDestdir = true;
makeFlags = "PREFIX=$(out)";
preBuild = "mkdir $out/bin";
};
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};
in
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stdenv.mkDerivation ({
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name = "ocaml${ocaml.version}-${pname}-${param.version}";
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src = fetchzip {
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url = "https://github.com/mjambon/${pname}/archive/v${param.version}.tar.gz";
inherit (param) sha256;
};
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buildInputs = [ ocaml findlib ] ++ param.buildInputs;
propagatedBuildInputs = [ cppo easy-format biniou ];
meta = with stdenv.lib; {
description = "An optimized parsing and printing library for the JSON format";
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homepage = "http://mjambon.com/${pname}.html";
license = licenses.bsd3;
maintainers = [ maintainers.vbgl ];
platforms = ocaml.meta.platforms or [];
};
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} // param.extra)