Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: chuck 1.4.2.0 -> 1.5.5.7 https://repology.org/project/chuck/versions
attrpath: chuck
Checking auto update branch...
No auto update branch exists
Old version 1.4.2.0" not present in staging derivation file with contents: {
  stdenv,
  lib,
  fetchurl,
  alsa-lib,
  bison,
  flex,
  libsndfile,
  which,
  DarwinTools,
  xcbuild,
}:

stdenv.mkDerivation rec {
  version = "1.5.5.5";
  pname = "chuck";

  src = fetchurl {
    url = "http://chuck.cs.princeton.edu/release/files/chuck-${version}.tgz";
    sha256 = "sha256-fxbTW0wcKn1q6psRhhCe6pHFJTPFfZUTCmlGr7gFoRU=";
  };

  nativeBuildInputs = [
    flex
    bison
    which
  ]
  ++ lib.optionals stdenv.hostPlatform.isDarwin [
    DarwinTools
    xcbuild
  ];

  buildInputs = [ libsndfile ] ++ lib.optional (!stdenv.hostPlatform.isDarwin) alsa-lib;

  makeFlags = [
    "-C src"
    "DESTDIR=$(out)/bin"
  ];
  buildFlags = [ (if stdenv.hostPlatform.isDarwin then "mac" else "linux-alsa") ];

  meta = {
    description = "Programming language for real-time sound synthesis and music creation";
    homepage = "http://chuck.cs.princeton.edu";
    license = lib.licenses.gpl2;
    platforms = lib.platforms.unix;
    maintainers = with lib.maintainers; [ ftrvxmtrx ];
    mainProgram = "chuck";
  };
}