{stdenv, fetchurl, libpng, libtiff, libjpeg, zlib}: stdenv.mkDerivation { name = "leptonica-1.69"; src = fetchurl { url = http://www.leptonica.org/source/leptonica-1.69.tar.gz; sha256 = "0bd7w0zpmwwfn1cnrlyzjw3jf8x59r0rhdmvk7rigr57rnfnddry"; }; buildInputs = [ libpng libtiff libjpeg zlib ]; meta = { description = "Image processing and analysis library"; homepage = http://www.leptonica.org/; # Its own license: http://www.leptonica.org/about-the-license.html license = "free"; }; }