anchor.diff:  , hunspell
   , hyphen
   , unrarSupport ? false
  -, chmlib
   , python3Packages
   , libusb1
   , libmtp
  
positive.code:   nativeBuildInputs = [ pkg-config qmake removeReferencesTo wrapGAppsHook ];
  
    buildInputs = [
      chmlib
      fontconfig
      hunspell
      hyphen
  
negative.code:       msgpack
        netifaces
        pillow
        pychm
        pyqt-builder
        pyqt5
        python
  