anchor.diff:      dbus          = [ dbus ];
       expat         = [ expat ];
       icu           = [ icu ];
  -    pcre          = [ pcre ];
  +    pcre          = [ pcre2 ];
       sqlite        = [ sqlite ];
       syslog        = [ ];
       systemd       = [ systemd ];
  
positive.code: 
      in stdenv.mkDerivation rec {
        pname = "mpd";
        version = "0.23.4";
  
        src = fetchFromGitHub {
          owner  = "MusicPlayerDaemon";
          repo   = "MPD";
          rev    = "v${version}";
          sha256 = "sha256-siMFLV1fKdRt8To6AhLXmAAsgqZCA/bbvmlhbb6hLic=";
        };
  
        buildInputs = [
  
negative.code: # Outputs
  , alsa-lib, libjack2, libpulseaudio, libshout, pipewire
  # Misc
  , icu, sqlite, avahi, dbus, pcre2, libgcrypt, expat
  # Services
  , yajl
  # Client support
  