2015/12
2016/01
2016/02
(with-module gauche.net (set! ipv6-capable (and (global-variable-bound? 'gauche.net 'sys-getaddrinfo) (guard (e ((is-a? e <system-error>) #f) (else (raise e))) (let ((s (make-socket AF_INET6 SOCK_STREAM))) (socket-close s) #t)))))