anchor.diff:    ;
   
     postPatch = ''
  -    substituteInPlace config/speechd.conf --replace "DefaultModule espeak" "DefaultModule ${selectedDefaultModule}"
       substituteInPlace src/modules/pico.c --replace "/usr/share/pico/lang" "${svox}/share/pico/lang"
     '';
   
  
positive.code: { lib, stdenv
  , substituteAll
  , pkg-config
  , fetchurl
  , fetchpatch
  , python3Packages
  , gettext
  , itstool
  
negative.code:     description = "Common interface to speech synthesis";
      homepage = "https://devel.freebsoft.org/speechd";
      license = licenses.gpl2Plus;
      maintainers = with maintainers; [
        berce
        jtojnar
      ];
      platforms = platforms.linux;
    };
  }
  