anchor.diff:      (enableFeature enablePython2Library "python-library")
       (enableFeature enablePython2Library "python2") # XXX: python2 library does not work anyway
       (enableFeature enableUI "ui")
  -    "--with-unicode-emoji-dir=${emojiData}"
  -    "--with-emoji-annotation-dir=${cldrEmojiAnnotation}/share/unicode/cldr/common/annotations"
  -    "--with-ucd-dir=${ucd}"
  +    "--with-unicode-emoji-dir=${unicode-emoji}/share/unicode/emoji"
  +    "--with-emoji-annotation-dir=${cldr-emoji-annotation}/share/unicode/cldr/common/annotations"
  +    "--with-ucd-dir=${unicode-character-database}/share/unicode"
     ];
   
     nativeBuildInputs = [
  
positive.code: , gtk3
  , gtk-doc
  , isocodes
  , python3
  , json-glib
  , libnotify ? null
  
negative.code: with stdenv.lib;
  
  let
    python3Runtime = python3.withPackages (ps: with ps; [ pygobject3 ]);
    python3BuildEnv = python3.buildEnv.override {
      # ImportError: No module named site
  