anchor.diff:  
   , argyllcms
   , bash-completion
  -, dbus
   , glib
   , gobject-introspection
   , libgusb
   , lcms2
   , libgudev
  -, libusb
   , polkit
   , sqlite
   , systemd-dummy
  
positive.code:   buildInputs = [
      argyllcms
      bash-completion
      dbus
      glib
      gobject-introspection
      lcms2
      libgudev
      libgusb
      libusb
      polkit
      sqlite
      systemd_lib
      systemd-dummy
    ];
  
    # preConfigure = ''
    #   configureFlagsArray+=(
    #     "--with-systemdsystemunitdir=$out/etc/systemd/system"
    #     "--with-udevrulesdir=$out/lib/udev/rules.d"
    #   )
    # '';
  
    postPatch = ''
      # Install systemd files to the current prefix
  
negative.code:       -e "s|systemd.get_pkgconfig_variable.*|'$out/lib/systemd/user',|g"
      sed -i data/meson.build \
        -e "s|systemd.get_pkgconfig_variable('tmpfilesdir')|'$out/lib/tmpfiles.d'|" \
        -e "s|systemd.get_pkgconfig_variable('systemdsystemunitdir')|'$out/lib/systemd/system'|" \
        -e "s|bash_completion.get_pkgconfig_variable('completionsdir')|'$out/share/bash-completion/completions'|"
    '';
  
    mesonFlags = [
      "-Dsession_example=false"
      "-Dlibcolordcompat=true"
      "-Dvapi=true"
      "-Dtests=false"
      "-Ddaemon_user=colord"
      "-Dman=false"
      "-Ddocs=false"
    ];
  
    setVapidirInstallFlag = false;
  