anchor.diff:  
     src = fetchFromGitHub {
       owner = "MusicPlayerDaemon";
  -    repo = "mpc";
  +    repo = pname;
       rev = "v${version}";
       hash = "sha256-2FjYBfak0IjibuU+CNQ0y9Ei8hTZhynS/BK2DNerhVw=";
     };
  
positive.code: { lib
  , stdenv
  , fetchFromGitHub
  , libiconv
  , libmpdclient
  , meson
  
negative.code:   ++ lib.optionals stdenv.isDarwin [ libiconv ];
  
    nativeBuildInputs = [
      installShellFiles
      meson
      ninja
      pkg-config
      sphinx
    ];
  
    postInstall = ''
      installShellCompletion --cmd mpc --bash $out/share/doc/mpc/contrib/mpc-completion.bash
    '';
  
    postFixup = ''
      rm $out/share/doc/mpc/contrib/mpc-completion.bash
    '';
  
    meta = with lib; {
      homepage = "https://www.musicpd.org/clients/mpc/";
      description = "A minimalist command line interface to MPD";
      changelog = "https://raw.githubusercontent.com/MusicPlayerDaemon/mpc/v${version}/NEWS";
      license = licenses.gpl2Plus;
      maintainers = with maintainers; [ AndersonTorres ];
      platforms = with platforms; unix;
    };
  