855e0463ab
"platforms.gnu" has been linux-only since at least 17.03: $ nix eval -f channel:nixos-17.03 lib.platforms.gnu [ "i686-linux" "x86_64-linux" "armv5tel-linux" "armv6l-linux" "armv7l-linux" "aarch64-linux" "mips64el-linux" ] Unlike platforms.linux, platforms.gnu indicates "must use glibc" which for the most part is not intended. Replacing platforms.gnu with platforms.linux would be the same "today" but let's err on preserving existing behavior and be optimistic about platforms these packages work on.
34 lines
1 KiB
Nix
34 lines
1 KiB
Nix
{ fetchurl, stdenv, lzip, texinfo }:
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stdenv.mkDerivation rec {
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name = "ocrad-0.26";
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src = fetchurl {
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url = "mirror://gnu/ocrad/${name}.tar.lz";
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sha256 = "0g4fq7maybdnd1471kd05a3f5sb7spa3d26k706rk85sd5wd70y3";
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};
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buildInputs = [ lzip texinfo ];
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doCheck = true;
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meta = with stdenv.lib; {
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description = "Optical character recognition (OCR) program & library";
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longDescription =
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'' GNU Ocrad is an OCR (Optical Character Recognition) program based on
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a feature extraction method. It reads images in pbm (bitmap), pgm
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(greyscale) or ppm (color) formats and produces text in byte (8-bit)
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or UTF-8 formats.
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Also includes a layout analyser able to separate the columns or
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blocks of text normally found on printed pages.
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Ocrad can be used as a stand-alone console application, or as a
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backend to other programs.
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'';
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license = licenses.gpl3Plus;
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maintainers = with maintainers; [ pSub ];
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platforms = platforms.gnu ++ platforms.linux; # arbitrary choice
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};
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}
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