libpgf 7.21.2 -> 7.21.7 https://repology.org/metapackage/libpgf/versions
attrpath: libpgf
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Old version 7.21.2" not present in master derivation file with contents: { lib
, stdenv
, fetchzip
, autoreconfHook
, dos2unix
}:

stdenv.mkDerivation rec {
  pname = "libpgf";
  version = "7.21.7";

  src = fetchzip {
    url = "mirror://sourceforge/${pname}/${pname}/${version}/${pname}.zip";
    hash = "sha256-TAWIuikijfyeTRetZWoMMdB/FeGAR7ZjNssVxUevlVg=";
  };

  postPatch = ''
    find . -type f | xargs dos2unix
    mv README.txt README
  '';

  nativeBuildInputs = [
    autoreconfHook
    dos2unix
  ];

  meta = {
    homepage = "https://www.libpgf.org/";
    description = "Progressive Graphics Format";
    license = lib.licenses.lgpl21Plus;
    platforms = lib.platforms.unix;
  };
}