depot/pkgs/development/libraries/physics/pythia/default.nix

{ lib, stdenv, fetchurl, boost, fastjet, fixDarwinDylibNames, hepmc, lhapdf, rsync, zlib }:

stdenv.mkDerivation rec {
  pname = "pythia";
  version = "8.312";

  src = fetchurl {
    url = "https://pythia.org/download/pythia83/pythia${builtins.replaceStrings ["."] [""] version}.tgz";
    sha256 = "sha256-utmOKWe2hwRsRWjJCR1jCgwxtih0XAIamUq6TR1Q+Oo=";
  };

  nativeBuildInputs = [ rsync ]
    ++ lib.optionals stdenv.hostPlatform.isDarwin [ fixDarwinDylibNames ];
  buildInputs = [ boost fastjet hepmc zlib lhapdf ];

  configureFlags = [
    "--enable-shared"
    "--with-lhapdf6=${lhapdf}"
  ] ++ (if lib.versions.major hepmc.version == "3" then [
    "--with-hepmc3=${hepmc}"
  ] else [
    "--with-hepmc2=${hepmc}"
  ]);

  enableParallelBuilding = true;

  meta = with lib; {
    description = "Program for the generation of high-energy physics events";
    mainProgram = "pythia8-config";
    license = licenses.gpl2Only;
    homepage = "https://pythia.org";
    platforms = platforms.unix;
    maintainers = with maintainers; [ veprbl ];
  };
}