anchor.diff:  , gettext
   , dbus
   , glib
  +, udevSupport ? stdenv.isLinux
   , libgudev
   , udisks2
   , libgcrypt
  
positive.code:   mesonFlags = [
      "-Dsystemduserunitdir=${placeholder "out"}/lib/systemd/user"
      "-Dtmpfilesdir=no"
    ] ++ lib.optionals (!gnomeSupport) [
      "-Dgcr=false"
      "-Dgoa=false"
  
negative.code:   meta = with lib; {
      description = "Virtual Filesystem support library" + optionalString gnomeSupport " (full GNOME support)";
      license = licenses.lgpl2Plus;
      platforms = platforms.unix;
      maintainers = teams.gnome.members;
    };
  }
  