anchor.diff:  , gettext
   , yelp-tools
   , itstool
  -, libxmlxx3
   , python
   , pygobject3
   , gtk3
  
positive.code: 
  buildPythonApplication rec {
    pname = "orca";
    version = "40.0";
  
    format = "other";
  
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "0hq0zdcn80ficpcffbk667907v6m7dih3dhyc7ss01mrj3iyw000";
    };
  
    patches = [
  
negative.code:     autoreconfHook
      wrapGAppsHook
      pkg-config
      gettext
      yelp-tools
      itstool
  