anchor.diff:  , openssh
   , systemd
   , gobject-introspection
  -, makeWrapper
  +, wrapGAppsHook
   , libxslt
   , vala
   , gnome
  
positive.code:     patchShebangs meson_post_install.py
    '';
  
    preFixup = ''
      wrapProgram "$out/bin/gcr-viewer" \
        --prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH"
    '';
  
    passthru = {
      updateScript = gnome.updateScript {
        packageName = pname;
  
negative.code:     gettext
      gobject-introspection
      libxslt
      wrapGAppsHook
      vala
      shared-mime-info
    ];
  