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