EAI_SYSTEM         44 ext/socket/addrinfo.h #undef EAI_SYSTEM
EAI_SYSTEM         88 ext/socket/addrinfo.h #define	EAI_SYSTEM	11	/* system error returned in errno */
EAI_SYSTEM       1562 ext/socket/constdefs.h #  define EAI_SYSTEM EAI_SYSTEM