pdfgrep: nix expression and poppler_data issue

gistfile1.txt

{ fetchurl, stdenv, pkgconfig, poppler, poppler_data }:

stdenv.mkDerivation rec {
  name = "pdfgrep-${version}";
  version = "1.3.1";

  src = fetchurl {
    url = "http://downloads.sourceforge.net/project/pdfgrep/${version}/${name}.tar.gz";
    sha256 = "6e8bcaf8b219e1ad733c97257a97286a94124694958c27506b2ea7fc8e532437";
  };

  buildInputs = [ pkgconfig poppler poppler_data ];

  nativeBuildInputs = [ pkgconfig ];

  patchPhase = ''
    sed -i -e "s%cpp/poppler-document.h%poppler/cpp/poppler-document.h%" pdfgrep.cc
    sed -i -e "s%cpp/poppler-page.h%poppler/cpp/poppler-page.h%" pdfgrep.cc
  '';

  meta = {
    description = "a tool to search text in PDF files";
    homepage = http://pdfgrep.sourceforge.net/;
    license = "free";
    maintainers = with stdenv.lib.maintainers; [qknight];
    platforms = with stdenv.lib.platforms; linux;
  };
}




joachim@lenovo-t530 ~/Downloads % pdfgrep peak *.pdf
1311.5607v1.pdf:of temperature. (Strictly speaking, we evaluate the difference of the mass of the thermal
1311.5607v1.pdf:the frequency. (Strictly speaking, we need to fix the gauge symmetry appropriately before
1311.5607v1.pdf:histogram of R2 for N = 4, T = 0.10,  = 16. A clear peak around R2  3.5 confirms the
1311.5607v1.pdf:with the choice Rcut = 4.2 and c = 100 for the cutoff potential. The peak of the histogram
poppler/error: Missing language pack for 'Adobe-Japan1' mappingpoppler/error: Missing language pack for 'Adobe-Japan1' mappingpoppler/error: Missing language pack for 'Adobe-Japan1' mappingpoppler/error: Missing language pack for 'Adobe-Japan1' mappingpoppler/error: Missing language pack for 'Adobe-Japan1' mappingpoppler/error: Unknown font tag 'TT2'poppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error: Unknown font tag 'TT4'poppler/error (1428): No font in showpoppler/error: Unknown font tag 'TT6'poppler/error (1428): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in showpoppler/error: Unknown font tag 'TT8'poppler/error (1428): No font in show/spacepoppler/error: Unknown font tag 'TT2'poppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in showpoppler/error (1428): No font in show/spacepoppler/error (1428): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error: Unknown font tag 'TT8'poppler/error (1204): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1204): No font in show/spacepoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in show/spacepoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in show/spacepoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1204): No font in show/spacepoppler/error (1204): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT6'poppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1223): No font in show/spacepoppler/error: Unknown font tag 'TT6'poppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT6'poppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1223): No font in show/spacepoppler/error: Unknown font tag 'TT6'poppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error: Unknown font tag 'TT8'poppler/error (1223): No font in showpoppler/error: Unknown font tag 'TT2'poppler/error (1223): No font in show/spacepoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (1223): No font in showpoppler/error (1223): No font in show/spacepoppler/error (


update:

export POPPLER_DATADIR=/nix/store/pqbgh8k6674fvf844z3040d3zhgk29sc-poppler-data-0.4.6/share/poppler/
joachim@lenovo-t530 ~/Downloads % pdfgrep peak *.pdf
...

now it works well, can that path be hardcoded into the pdfgrep binary?