anchor.diff:    nativeBuildInputs = [ makeWrapper pkgconfig ];
   
     buildInputs =
  -    [ python pyqt5 sip_4_16 poppler libpng imagemagick libjpeg
  +    [ python pyqt5 sip_4_16 poppler_utils libpng imagemagick libjpeg
         fontconfig podofo qt5 pil chmlib icu sqlite libusb1 libmtp xdg_utils
         pythonPackages.mechanize pythonPackages.lxml pythonPackages.dateutil
         pythonPackages.cssutils pythonPackages.beautifulsoup pythonPackages.pillow
  
positive.code: 
    installPhase = ''
      export HOME=$TMPDIR/fakehome
      export POPPLER_INC_DIR=${poppler}/include/poppler
      export POPPLER_LIB_DIR=${poppler}/lib
      export MAGICK_INC=${imagemagick}/include/ImageMagick
      export MAGICK_LIB=${imagemagick}/lib
      export FC_INC_DIR=${fontconfig}/include/fontconfig
  
negative.code:     for a in $out/bin/*; do
        wrapProgram $a --prefix PYTHONPATH : $PYTHONPATH \
                       --prefix LD_LIBRARY_PATH : ${unrar}/lib \
                       --prefix PATH : ${poppler_utils}/bin
      done
    '';
  
  