50 lines
1.2 KiB
Nix
50 lines
1.2 KiB
Nix
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{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config
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, leptonica, libpng, libtiff, icu, pango, opencl-headers }:
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stdenv.mkDerivation rec {
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pname = "tesseract";
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version = "3.05.02";
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src = fetchFromGitHub {
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owner = "tesseract-ocr";
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repo = "tesseract";
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rev = version;
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hash = "sha256-28osuZnVwkJpNTYkU+5D5PI8xtViFzGCMScHzkS2H20=";
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};
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# leptonica 1.83 made internal structures private. using internal headers isn't
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# great, but tesseract3's days are numbered anyway
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postPatch = ''
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for f in textord/devanagari_processing.cpp cube/cube_line_object.h cube/cube_line_segmenter.h cube/cube_utils.h ; do
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sed -i '/allheaders.h/a#include "pix_internal.h"' "$f"
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done
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'';
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enableParallelBuilding = true;
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nativeBuildInputs = [
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pkg-config
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autoreconfHook
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];
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buildInputs = [
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leptonica
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libpng
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libtiff
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icu
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pango
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opencl-headers
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];
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LIBLEPT_HEADERSDIR = "${leptonica}/include";
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meta = {
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description = "OCR engine";
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homepage = "https://github.com/tesseract-ocr/tesseract";
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license = lib.licenses.asl20;
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maintainers = with lib.maintainers; [ erikarvstedt ];
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platforms = with lib.platforms; linux ++ darwin;
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mainProgram = "tesseract";
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};
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}
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