anchor.diff:      longDescription = ''
         This library has code for detecting and reading many archive formats and
         compressions formats including (but not limited to) tar, shar, cpio, zip, and
  -      compressed with gzip, bzip2, lzma, xz, .. 
  +      compressed with gzip, bzip2, lzma, xz, ...
       '';
       homepage = http://libarchive.org;
       license = stdenv.lib.licenses.bsd3;
  
positive.code:   '' else null;
  
    preFixup = ''
      sed -i $out/lib/libarchive.la \
        -e 's|-lcrypto|-L${openssl.out}/lib -lcrypto|' \
        -e 's|-llzo2|-L${lzo}/lib -llzo2|'
    '';
  
negative.code:     sha256 = "1lngng84k1kkljl74q0cdqc3s82vn2kimfm02dgm4d6m7x71mvkj";
    };
  
    outputs = [ "out" "lib" "dev" ];
  
    nativeBuildInputs = [ pkgconfig ];
    buildInputs = [ sharutils zlib bzip2 openssl xz lzo ]
      ++ stdenv.lib.optionals stdenv.isLinux [ e2fsprogs attr acl ]
  