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nixpkgs/pkgs/applications/graphics/gocr/default.nix

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Nix

{ stdenv, fetchurl, tk }:
stdenv.mkDerivation rec {
name = "gocr-0.50";
src = fetchurl {
url = "http://www-e.uni-magdeburg.de/jschulen/ocr/${name}.tar.gz";
sha256 = "1dgmcpapy7h68d53q2c5d0bpgzgfb2nw2blndnx9qhc7z12149mw";
};
postInstall = ''
sed -i -e 's|exec wish|exec ${tk}/bin/wish|' $out/bin/gocr.tcl
'';
meta = {
homepage = "http://jocr.sourceforge.net/";
description = "GPL Optical Character Recognition";
license = stdenv.lib.licenses.gpl2;
platforms = stdenv.lib.platforms.linux;
};
}