anchor.diff:  , openssl
   , alsa-lib
   , libpulseaudio
  -, wrapGAppsHook
  +, wrapGAppsHook4
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:   postPatch = ''
      chmod +x build-aux/cargo.sh
      patchShebangs build-aux/cargo.sh build-aux/meson/postinstall.py
    '';
  
    passthru = {
  
negative.code:     rustPlatform.rust.cargo
      rustPlatform.cargoSetupHook
      rustPlatform.rust.rustc
      wrapGAppsHook4
    ];
  
    buildInputs = [
  