HAVE_TYPE_STRUCT_IP_MREQ 687 ext/socket/option.c #if defined(IPPROTO_IP) && defined(HAVE_TYPE_STRUCT_IP_MREQ) /* 4.4BSD, GNU/Linux */ HAVE_TYPE_STRUCT_IP_MREQ 737 ext/socket/option.c #if defined(IPPROTO_IP) && defined(HAVE_TYPE_STRUCT_IP_MREQ) /* 4.4BSD, GNU/Linux */