anchor.diff:    ];
   
     configureFlags = [
  -    "--with-ssl=${openssl}"
  -    "--with-libexpat=${expat}"
  -    "--with-libevent=${libevent}"
       "--localstatedir=/var"
       "--sysconfdir=/etc"
       "--enable-pie"
  
positive.code:     "--enable-dnstap"
      "--enable-dnscrypt"
      "--enable-cachedb"
      "--with-dnstap-socket-path=/run/dnstap.sock"
      "--with-pthreads"
    ];
  
negative.code: 
  , expat
  , fstrm
  , hiredis
  , libevent
  , libsodium
  , openssl
  