anchor.diff:  , acl
   , bzip2
   , e2fsprogs
  +, libb2
   , libxml2
   , lz4
   , lzo
  
positive.code:     owner = "libarchive";
      repo = "libarchive";
      inherit rev;
      sha256 = "0021af1297082e99c09b85f611421ceea12ca440aac87311effae81183b51938";
    };
  
    nativeBuildInputs = [
  
negative.code: }:
  
  let
    rev = "d5f35a90a4cb1eeb918213bff9d78e8b0471dc0a";
    date = "2018-10-06";
  in
  stdenv.mkDerivation rec {
    name = "libarchive-${date}";
  