IP_ADD_SOURCE_MEMBERSHIP  614 ext/sockets/multicast.c 		return IP_ADD_SOURCE_MEMBERSHIP;
IP_ADD_SOURCE_MEMBERSHIP   25 ext/sockets/multicast.h #elif defined(IP_ADD_SOURCE_MEMBERSHIP) && !defined(__APPLE__)
IP_ADD_SOURCE_MEMBERSHIP   36 ext/sockets/multicast.h #  define PHP_MCAST_JOIN_SOURCE_GROUP	IP_ADD_SOURCE_MEMBERSHIP