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:     ps.webob
      ps.bcrypt
      ps.six
    ]);
  
    version = "14.2.4";
  in rec {
    ceph = stdenv.mkDerivation {
      pname = "ceph";
  
negative.code: , cunit, snappy
  , rocksdb, makeWrapper
  , leveldb, oathToolkit
  , libnl, libcap_ng
  
  # Optional Dependencies
  , yasm ? null, fcgi ? null, expat ? null
  