{ stdenv, fetchurl, autoconf, automake, libtool, leptonica, libpng, libtiff }: let f = lang : sha256 : let src = fetchurl { url = "http://tesseract-ocr.googlecode.com/files/${lang}.traineddata.gz"; inherit sha256; }; in "gunzip -c ${src} > $out/share/tessdata/${lang}.traineddata"; extraLanguages = '' ${f "cat" "1qndk8qygw9bq7nzn7kzgxkm3jhlq7jgvdqpj5id4rrcaavjvifw"} ${f "rus" "0yjzks189bgcmi2vr4v0l0fla11qdrw3cb1nvpxl9mdis8qr9vcc"} ${f "spa" "1q1hw3qi95q5ww3l02fbhjqacxm34cp65fkbx10wjdcg0s5p9q2x"} ${f "nld" "0cbqfhl2rwb1mg4y1140nw2vhhcilc0nk7bfbnxw6bzj1y5n49i8"} ''; in stdenv.mkDerivation { name = "tesseract-3.0.1"; src = fetchurl { url = http://tesseract-ocr.googlecode.com/files/tesseract-3.01.tar.gz; sha256 = "c24b0bd278291bc93ab242f93841c1d8743689c943bd804afbc5b898dc0a1c9b"; }; buildInputs = [ autoconf automake libtool leptonica libpng libtiff ]; preConfigure = '' ./autogen.sh substituteInPlace "configure" \ --replace 'LIBLEPT_HEADERSDIR="/usr/local/include /usr/include"' \ 'LIBLEPT_HEADERSDIR=${leptonica}/include' ''; postInstall = extraLanguages; meta = { description = "OCR engine"; homepage = http://code.google.com/p/tesseract-ocr/; license = "Apache2.0"; maintainers = with stdenv.lib.maintainers; [viric]; platforms = with stdenv.lib.platforms; linux; }; }