{ stdenv, fetchFromGitHub, autoreconfHook, pkgconfig , leptonica, libpng, libtiff, icu, pango, opencl-headers }: stdenv.mkDerivation rec { pname = "tesseract"; version = "3.05.00"; src = fetchFromGitHub { owner = "tesseract-ocr"; repo = "tesseract"; rev = version; sha256 = "11wrpcfl118wxsv2c3w2scznwb48c4547qml42s2bpdz079g8y30"; }; enableParallelBuilding = true; nativeBuildInputs = [ pkgconfig autoreconfHook ]; buildInputs = [ leptonica libpng libtiff icu pango opencl-headers ]; LIBLEPT_HEADERSDIR = "${leptonica}/include"; meta = { description = "OCR engine"; homepage = https://github.com/tesseract-ocr/tesseract; license = stdenv.lib.licenses.asl20; maintainers = with stdenv.lib.maintainers; [ viric earvstedt ]; platforms = with stdenv.lib.platforms; linux ++ darwin; }; }