IN_EXPERIMENTAL 473 ext/socket/getaddrinfo.c if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) IN_EXPERIMENTAL 198 ext/socket/getnameinfo.c if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) IN_EXPERIMENTAL 88 ext/socket/sockport.h #ifndef IN_EXPERIMENTAL