#if defined(AF_INET)
  define_const(AF_INET);
#endif
#if defined(PF_INET)
  define_const(PF_INET);
#endif
#if defined(AF_INET6)
  define_const(AF_INET6);
#endif
#if defined(PF_INET6)
  define_const(PF_INET6);
#endif
#if defined(AF_LINK)
  define_const(AF_LINK);
#endif
#if defined(PF_LINK)
  define_const(PF_LINK);
#endif
#if defined(AF_LOCAL)
  define_const(AF_LOCAL);
#endif
#if defined(PF_LOCAL)
  define_const(PF_LOCAL);
#endif
#if defined(AF_UNIX)
  define_const(AF_UNIX);
#endif
#if defined(PF_UNIX)
  define_const(PF_UNIX);
#endif
#if defined(AF_MAX)
  define_const(AF_MAX);
#endif
#if defined(AF_UNSPEC)
  define_const(AF_UNSPEC);
#endif
#if defined(PF_UNSPEC)
  define_const(PF_UNSPEC);
#endif
#if defined(AF_ROUTE)
  define_const(AF_ROUTE);
#endif
#if defined(PF_ROUTE)
  define_const(PF_ROUTE);
#endif
#if defined(AI_CANONNAME)
  define_const(AI_CANONNAME);
#endif
#if defined(AI_FQDN)
  define_const(AI_FQDN);
#endif
#if defined(AI_NUMERICHOST)
  define_const(AI_NUMERICHOST);
#endif
#if defined(AI_NUMERICSERV)
  define_const(AI_NUMERICSERV);
#endif
#if defined(AI_PASSIVE)
  define_const(AI_PASSIVE);
#endif
#if defined(IP_ADD_MEMBERSHIP)
  define_const(IP_ADD_MEMBERSHIP);
#endif
#if defined(IP_ADD_SOURCE_MEMBERSHIP)
  define_const(IP_ADD_SOURCE_MEMBERSHIP);
#endif
#if defined(IP_BLOCK_SOURCE)
  define_const(IP_BLOCK_SOURCE);
#endif
#if defined(IP_DROP_MEMBERSHIP)
  define_const(IP_DROP_MEMBERSHIP);
#endif
#if defined(IP_DROP_SOURCE_MEMBERSHIP)
  define_const(IP_DROP_SOURCE_MEMBERSHIP);
#endif
#if defined(IP_FREEBIND)
  define_const(IP_FREEBIND);
#endif
#if defined(IP_HDRINCL)
  define_const(IP_HDRINCL);
#endif
#if defined(IP_IPSEC_POLICY)
  define_const(IP_IPSEC_POLICY);
#endif
#if defined(IP_MINTTL)
  define_const(IP_MINTTL);
#endif
#if defined(IP_MSFILTER)
  define_const(IP_MSFILTER);
#endif
#if defined(IP_MTU)
  define_const(IP_MTU);
#endif
#if defined(IP_MTU_DISCOVER)
  define_const(IP_MTU_DISCOVER);
#endif
#if defined(IP_MULTICAST_ALL)
  define_const(IP_MULTICAST_ALL);
#endif
#if defined(IP_MULTICAST_IF)
  define_const(IP_MULTICAST_IF);
#endif
#if defined(IP_MULTICAST_LOOP)
  define_const(IP_MULTICAST_LOOP);
#endif
#if defined(IP_MULTICAST_TTL)
  define_const(IP_MULTICAST_TTL);
#endif
#if defined(IP_OPTIONS)
  define_const(IP_OPTIONS);
#endif
#if defined(IP_ORIGDSTADDR)
  define_const(IP_ORIGDSTADDR);
#endif
#if defined(IP_PASSSEC)
  define_const(IP_PASSSEC);
#endif
#if defined(IP_PKTINFO)
  define_const(IP_PKTINFO);
#endif
#if defined(IP_PKTOPTIONS)
  define_const(IP_PKTOPTIONS);
#endif
#if defined(IP_PMTUDISC_DO)
  define_const(IP_PMTUDISC_DO);
#endif
#if defined(IP_PMTUDISC_DONT)
  define_const(IP_PMTUDISC_DONT);
#endif
#if defined(IP_PMTUDISC_PROBE)
  define_const(IP_PMTUDISC_PROBE);
#endif
#if defined(IP_PMTUDISC_WANT)
  define_const(IP_PMTUDISC_WANT);
#endif
#if defined(IP_RECVDSTADDR)
  define_const(IP_RECVDSTADDR);
#endif
#if defined(IP_RECVERR)
  define_const(IP_RECVERR);
#endif
#if defined(IP_RECVOPTS)
  define_const(IP_RECVOPTS);
#endif
#if defined(IP_RECVORIGDSTADDR)
  define_const(IP_RECVORIGDSTADDR);
#endif
#if defined(IP_RECVRETOPTS)
  define_const(IP_RECVRETOPTS);
#endif
#if defined(IP_RECVTOS)
  define_const(IP_RECVTOS);
#endif
#if defined(IP_RECVTTL)
  define_const(IP_RECVTTL);
#endif
#if defined(IP_RETOPTS)
  define_const(IP_RETOPTS);
#endif
#if defined(IP_ROUTER_ALERT)
  define_const(IP_ROUTER_ALERT);
#endif
#if defined(IP_TOS)
  define_const(IP_TOS);
#endif
#if defined(IP_TRANSPARENT)
  define_const(IP_TRANSPARENT);
#endif
#if defined(IP_TTL)
  define_const(IP_TTL);
#endif
#if defined(IP_UNBLOCK_SOURCE)
  define_const(IP_UNBLOCK_SOURCE);
#endif
#if defined(IP_XFRM_POLICY)
  define_const(IP_XFRM_POLICY);
#endif
#if defined(IPV6_JOIN_GROUP)
  define_const(IPV6_JOIN_GROUP);
#endif
#if defined(IPV6_LEAVE_GROUP)
  define_const(IPV6_LEAVE_GROUP);
#endif
#if defined(IPV6_MULTICAST_HOPS)
  define_const(IPV6_MULTICAST_HOPS);
#endif
#if defined(IPV6_MULTICAST_IF)
  define_const(IPV6_MULTICAST_IF);
#endif
#if defined(IPV6_MULTICAST_LOOP)
  define_const(IPV6_MULTICAST_LOOP);
#endif
#if defined(IPV6_UNICAST_HOPS)
  define_const(IPV6_UNICAST_HOPS);
#endif
#if defined(IPV6_V6ONLY)
  define_const(IPV6_V6ONLY);
#endif
#if defined(IPPROTO_AH) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_AH);
#endif
#if defined(IPPROTO_DSTOPTS) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_DSTOPTS);
#endif
#if defined(IPPROTO_ESP) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_ESP);
#endif
#if defined(IPPROTO_FRAGMENT) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_FRAGMENT);
#endif
#if defined(IPPROTO_ICMP) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_ICMP);
#endif
#if defined(IPPROTO_ICMPV6) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_ICMPV6);
#endif
#if defined(IPPROTO_IP) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_IP);
#endif
#if defined(IPPROTO_IPV6) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_IPV6);
#endif
#if defined(IPPROTO_NONE) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_NONE);
#endif
#if defined(IPPROTO_RAW) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_RAW);
#endif
#if defined(IPPROTO_ROUTING) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_ROUTING);
#endif
#if defined(IPPROTO_TCP) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_TCP);
#endif
#if defined(IPPROTO_UDP) || defined(_WINSOCKAPI_)
  define_const(IPPROTO_UDP);
#endif
#if defined(MCAST_BLOCK_SOURCE)
  define_const(MCAST_BLOCK_SOURCE);
#endif
#if defined(MCAST_JOIN_GROUP)
  define_const(MCAST_JOIN_GROUP);
#endif
#if defined(MCAST_JOIN_SOURCE_GROUP)
  define_const(MCAST_JOIN_SOURCE_GROUP);
#endif
#if defined(MCAST_LEAVE_GROUP)
  define_const(MCAST_LEAVE_GROUP);
#endif
#if defined(MCAST_LEAVE_SOURCE_GROUP)
  define_const(MCAST_LEAVE_SOURCE_GROUP);
#endif
#if defined(MCAST_MSFILTER)
  define_const(MCAST_MSFILTER);
#endif
#if defined(MCAST_UNBLOCK_SOURCE)
  define_const(MCAST_UNBLOCK_SOURCE);
#endif
#if defined(MSG_BCAST)
  define_const(MSG_BCAST);
#endif
#if defined(MSG_CTRUNC)
  define_const(MSG_CTRUNC);
#endif
#if defined(MSG_DONTROUTE)
  define_const(MSG_DONTROUTE);
#endif
#if defined(MSG_DONTWAIT)
  define_const(MSG_DONTWAIT);
#endif
#if defined(MSG_EOR)
  define_const(MSG_EOR);
#endif
#if defined(MSG_MCAST)
  define_const(MSG_MCAST);
#endif
#if defined(MSG_NOSIGNAL)
  define_const(MSG_NOSIGNAL);
#endif
#if defined(MSG_OOB)
  define_const(MSG_OOB);
#endif
#if defined(MSG_PEEK)
  define_const(MSG_PEEK);
#endif
#if defined(MSG_TRUNC)
  define_const(MSG_TRUNC);
#endif
#if defined(MSG_WAITALL)
  define_const(MSG_WAITALL);
#endif
#if defined(NI_DGRAM)
  define_const(NI_DGRAM);
#endif
#if defined(NI_MAXHOST)
  define_const(NI_MAXHOST);
#endif
#if defined(NI_MAXSERV)
  define_const(NI_MAXSERV);
#endif
#if defined(NI_NAMEREQD)
  define_const(NI_NAMEREQD);
#endif
#if defined(NI_NOFQDN)
  define_const(NI_NOFQDN);
#endif
#if defined(NI_NUMERICHOST)
  define_const(NI_NUMERICHOST);
#endif
#if defined(NI_NUMERICSERV)
  define_const(NI_NUMERICSERV);
#endif
#if defined(SHUT_RD)
  define_const(SHUT_RD);
#endif
#if defined(SHUT_WR)
  define_const(SHUT_WR);
#endif
#if defined(SHUT_RDWR)
  define_const(SHUT_RDWR);
#endif
#if defined(SO_BINDANY)
  define_const(SO_BINDANY);
#endif
#if defined(SO_BROADCAST)
  define_const(SO_BROADCAST);
#endif
#if defined(SO_DEBUG)
  define_const(SO_DEBUG);
#endif
#if defined(SO_DONTROUTE)
  define_const(SO_DONTROUTE);
#endif
#if defined(SO_ERROR)
  define_const(SO_ERROR);
#endif
#if defined(SO_KEEPALIVE)
  define_const(SO_KEEPALIVE);
#endif
#if defined(SO_LINGER)
  define_const(SO_LINGER);
#endif
#if defined(SO_NOSIGPIPE)
  define_const(SO_NOSIGPIPE);
#endif
#if defined(SO_OOBINLINE)
  define_const(SO_OOBINLINE);
#endif
#if defined(SO_PEERCRED)
  define_const(SO_PEERCRED);
#endif
#if defined(SO_RCVBUF)
  define_const(SO_RCVBUF);
#endif
#if defined(SO_RCVLOWAT)
  define_const(SO_RCVLOWAT);
#endif
#if defined(SO_RCVTIMEO)
  define_const(SO_RCVTIMEO);
#endif
#if defined(SO_REUSEADDR)
  define_const(SO_REUSEADDR);
#endif
#if defined(SO_REUSEPORT)
  define_const(SO_REUSEPORT);
#endif
#if defined(SO_RTABLE)
  define_const(SO_RTABLE);
#endif
#if defined(SO_SNDBUF)
  define_const(SO_SNDBUF);
#endif
#if defined(SO_SNDLOWAT)
  define_const(SO_SNDLOWAT);
#endif
#if defined(SO_SNDTIMEO)
  define_const(SO_SNDTIMEO);
#endif
#if defined(SO_SPLICE)
  define_const(SO_SPLICE);
#endif
#if defined(SO_TIMESTAMP)
  define_const(SO_TIMESTAMP);
#endif
#if defined(SO_TYPE)
  define_const(SO_TYPE);
#endif
#if defined(SOCK_DGRAM)
  define_const(SOCK_DGRAM);
#endif
#if defined(SOCK_RAW)
  define_const(SOCK_RAW);
#endif
#if defined(SOCK_SEQPACKET)
  define_const(SOCK_SEQPACKET);
#endif
#if defined(SOCK_STREAM)
  define_const(SOCK_STREAM);
#endif
#if defined(SOL_SOCKET)
  define_const(SOL_SOCKET);
#endif
#if defined(SOL_IP)
  define_const(SOL_IP);
#endif
#if defined(SOL_TCP)
  define_const(SOL_TCP);
#endif
#if defined(TCP_CONGCTL)
  define_const(TCP_CONGCTL);
#endif
#if defined(TCP_CONGESTION)
  define_const(TCP_CONGESTION);
#endif
#if defined(TCP_CORK)
  define_const(TCP_CORK);
#endif
#if defined(TCP_DEFER_ACCEPT)
  define_const(TCP_DEFER_ACCEPT);
#endif
#if defined(TCP_INFO)
  define_const(TCP_INFO);
#endif
#if defined(TCP_KEEPCNT)
  define_const(TCP_KEEPCNT);
#endif
#if defined(TCP_KEEPIDLE)
  define_const(TCP_KEEPIDLE);
#endif
#if defined(TCP_KEEPINIT)
  define_const(TCP_KEEPINIT);
#endif
#if defined(TCP_KEEPINTVL)
  define_const(TCP_KEEPINTVL);
#endif
#if defined(TCP_LINGER2)
  define_const(TCP_LINGER2);
#endif
#if defined(TCP_MAXSEG)
  define_const(TCP_MAXSEG);
#endif
#if defined(TCP_MD5SIG)
  define_const(TCP_MD5SIG);
#endif
#if defined(TCP_NODELAY)
  define_const(TCP_NODELAY);
#endif
#if defined(TCP_QUICKACK)
  define_const(TCP_QUICKACK);
#endif
#if defined(TCP_SACK_ENABLE)
  define_const(TCP_SACK_ENABLE);
#endif
#if defined(TCP_SYNCNT)
  define_const(TCP_SYNCNT);
#endif
#if defined(TCP_WINDOW_CLAMP)
  define_const(TCP_WINDOW_CLAMP);
#endif