{ stdenv, fetchFromGitHub, buildDunePackage, ocaml, findlib }: let param = let v6_2 = { version = "6.2"; sha256 = "0qf4fwnn4hhk52kjw9frv21v23azqnn4mjvwf1hs0nxf7q4kacb5"; }; in { "4.02" = { version = "5.0+4.02.0"; sha256 = "16drjk0qafjls8blng69qiv35a84wlafpk16grrg2i3x19p8dlj8"; }; "4.03" = { version = "5.0+4.03.0"; sha256 = "061v1fl5z7z3ywi4ppryrlcywnvnqbsw83ppq72qmkc7ma4603jg"; }; "4.04" = { version = "unstable-20161114"; rev = "49c08e2e4ea8fef88692cd1dcc1b38a9133f17ac"; sha256 = "0ywzfkf5brj33nwh49k9if8x8v433ral25f3nbklfc9vqr06zrfl"; }; "4.05" = { version = "5.0+4.05.0"; sha256 = "1jvvhk6wnkvm7b9zph309ihsc0hyxfpahmxxrq19vx8c674jsdm4"; }; "4.06" = { version = "5.1+4.06.0"; sha256 = "1ww4cspdpgjjsgiv71s0im5yjkr3544x96wsq1vpdacq7dr7zwiw"; }; "4.07" = { version = "5.1+4.06.0"; sha256 = "1ww4cspdpgjjsgiv71s0im5yjkr3544x96wsq1vpdacq7dr7zwiw"; }; "4.08" = v6_2; "4.09" = v6_2; "4.10" = v6_2; "4.11" = v6_2; }.${ocaml.meta.branch}; in let src = fetchFromGitHub { owner = "alainfrisch"; repo = pname; rev = param.rev or param.version; inherit (param) sha256; }; pname = "ppx_tools"; meta = with stdenv.lib; { description = "Tools for authors of ppx rewriters"; homepage = "https://www.lexifi.com/ppx_tools"; license = licenses.mit; maintainers = with maintainers; [ vbgl ]; }; in if stdenv.lib.versionAtLeast param.version "6.0" then buildDunePackage { inherit pname src meta; inherit (param) version; } else stdenv.mkDerivation { name = "ocaml${ocaml.version}-${pname}-${param.version}"; inherit src; nativeBuildInputs = [ ocaml findlib ]; buildInputs = [ ocaml findlib ]; createFindlibDestdir = true; dontStrip = true; meta = meta // { inherit (ocaml.meta) platforms; }; }