Added needed defines for Watt-32 on Windows.

  #define SOCKET              int

  #define NS_INADDRSZ         4

  #define HAVE_ARPA_NAMESER_H 1

  #define HAVE_ARPA_INET_H    1

  #define HAVE_NETDB_H        1

  #define HAVE_NETINET_IN_H   1

  #define HAVE_SYS_SOCKET_H   1

  #define HAVE_NETINET_TCP_H  1

  #define HAVE_AF_INET6       1

  #define HAVE_PF_INET6       1

  #define HAVE_STRUCT_IN6_ADDR     1

  #define HAVE_STRUCT_SOCKADDR_IN6 1

  #undef HAVE_WINSOCK_H

  #undef HAVE_WINSOCK2_H

  #undef HAVE_WS2TCPIP_H