anchor.diff:      libxi
       libxkbcommon
       python3Packages.python
  +    unicode-character-database
       wayland
     ];
   
  
positive.code:     sed -i configure \
        -e "s|PYTHON2_LIBDIR=.*|PYTHON2_LIBDIR=$out/lib/${
          python3Packages.python.libPrefix}|"
    '';
  
    preFixup = ''
  
negative.code: , libxi
  , libxkbcommon
  , python3Packages
  , unicode-character-database
  , vala
  , wayland
  , xorg
  