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