anchor.diff:  , gtk-doc
   , pkg-config
   , gobject-introspection
  -, intltool
  +, gettext
   , libgudev
   , polkit
   , libxmlb
  
positive.code: 
      src = fetchurl {
        url = "https://people.freedesktop.org/~hughsient/releases/fwupd-${version}.tar.xz";
        sha256 = "0hpqxwqbbqn440c2swpnc06z8dskisrli4ynsxrzzqyp0dan46xw";
      };
  
      patches = [
  
negative.code:       gtk-doc
        pkg-config
        gobject-introspection
        gettext
        shared-mime-info
        valgrind
        gcab
  