anchor.diff:      buildInputs = cryptoLibsMap.${cryptoStr} ++ [
         boost ceph-python-env libxml2 optYasm optLibatomic_ops optLibs3
         malloc zlib openldap lttng-ust babeltrace gperf gtest cunit
  -      snappy rocksdb lz4 oathToolkit leveldb
  +      snappy rocksdb lz4 oathToolkit leveldb libnl libcap_ng
       ] ++ optionals stdenv.isLinux [
         linuxHeaders utillinux libuuid udev keyutils optLibaio optLibxfs optZfs
         # ceph 14
  
positive.code: , cunit, snappy
  , rocksdb, makeWrapper
  , leveldb, oathToolkit
  
  # Optional Dependencies
  , yasm ? null, fcgi ? null, expat ? null
  
negative.code: 
      src = fetchurl {
        url = "http://download.ceph.com/tarballs/ceph-${version}.tar.gz";
        sha256 = "0wbkdplxs8higmlj57a7rydmx9rq08h0arjrmxmp0s80bn0v5x2c";
      };
  
      patches = [
  