IPV6_USE_MIN_MTU
#ifdef IPV6_USE_MIN_MTU
if (setsockopt(fd, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
#ifdef IPV6_USE_MIN_MTU
setsockopt(sendsock, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
case IPV6_USE_MIN_MTU:
case IPV6_USE_MIN_MTU:
case IPV6_USE_MIN_MTU:
case IPV6_USE_MIN_MTU:
case IPV6_USE_MIN_MTU: