anchor.diff:      nativeBuildInputs = [
         cmake
         pkgconfig which git python3Packages.wrapPython makeWrapper
  +      python3Packages.python # for the toPythonPath function
         (ensureNewerSourcesHook { year = "1980"; })
       ];
   
       buildInputs = cryptoLibsMap.${cryptoStr} ++ [
         boost ceph-python-env libxml2 optYasm optLibatomic_ops optLibs3
  -      malloc zlib openldap lttng-ust babeltrace gperf cunit
  +      malloc zlib openldap lttng-ust babeltrace gperf gtest cunit
         snappy rocksdb lz4 oathToolkit leveldb
  -      removeReferencesTo
       ] ++ optionals stdenv.isLinux [
         linuxHeaders utillinux libuuid udev keyutils optLibaio optLibxfs optZfs
         # ceph 14
  
positive.code:         description = "Tools needed to mount Ceph's RADOS Block Devices";
          license = with licenses; [ lgpl21 gpl2 bsd3 mit publicDomain ];
          maintainers = with maintainers; [ adev ak johanot krav ];
          platforms = platforms.unix;
        };
      } ''
        mkdir -p $out/{bin,etc,lib/python3.7/site-packages}
  
negative.code: , libxml2, zlib, lz4
  , openldap, lttng-ust
  , babeltrace, gperf
  , gtest
  , cunit, snappy
  , rocksdb, makeWrapper
  , leveldb, oathToolkit
  
  # Optional Dependencies
  , yasm ? null, fcgi ? null, expat ? null
  