AI_NUMERICHOST     51 ext/socket/addrinfo.h #undef AI_NUMERICHOST
AI_NUMERICHOST     98 ext/socket/addrinfo.h #define	AI_NUMERICHOST	0x00000004 /* prevent name resolution */
AI_NUMERICHOST   1592 ext/socket/constdefs.h #  define AI_NUMERICHOST AI_NUMERICHOST