anchor.diff:      fastJson libestr json_c zlib pythonPackages.docutils libkrb5 jemalloc
       postgresql libdbi net-snmp libuuid curl gnutls libgcrypt liblognorm openssl
       librelp libksi liblogging libnet hadoop rdkafka libmongo-client czmq
  -    rabbitmq-c hiredis mongoc
  +    rabbitmq-c hiredis mongoc libmaxminddb
     ] ++ stdenv.lib.optional (libmysqlclient != null) libmysqlclient
       ++ stdenv.lib.optional stdenv.isLinux systemd;
   
  
positive.code:     (mkFlag true                      "rsyslogd")
      (mkFlag true                      "mail")
      (mkFlag (liblognorm != null)      "mmnormalize")
      (mkFlag true                      "mmjsonparse")
      (mkFlag true                      "mmaudit")
      (mkFlag true                      "mmanon")
  
negative.code: , libgcrypt ? null, liblognorm ? null, openssl ? null, librelp ? null, libksi ? null
  , liblogging ? null, libnet ? null, hadoop ? null, rdkafka ? null
  , libmongo-client ? null, czmq ? null, rabbitmq-c ? null, hiredis ? null, mongoc ? null
  , libmaxminddb ? null
  }:
  
  with stdenv.lib;
  