anchor.diff:  , gettext
   
   , attr
  +, icu
   , libunistring
   , readline
   , util-linux_lib
  
positive.code:   src = fetchurl {
      urls = map (n: "${n}.xz") (tarballUrls version);
      hashOutput = false;
      sha256 = "27c36de9346a274143ad06c65b2fdbafd2806f3f37fa2c1235a08ed920d2bf3c";
    };
  
    nativeBuildInputs = [
  
negative.code:     "mirror://kernel/linux/utils/fs/xfs/xfsprogs/xfsprogs-${version}.tar"
    ];
  
    version = "4.16.1";
  in
  stdenv.mkDerivation rec {
    name = "xfsprogs-${version}";
  