const syscall.IPV6_JOIN_GROUP

2 uses

	syscall (current package)
		zerrors_darwin_arm64.go#L524: 	IPV6_JOIN_GROUP                   = 0xc

	net
		sockoptip_posix.go#L46: 	err := fd.pfd.SetsockoptIPv6Mreq(syscall.IPPROTO_IPV6, syscall.IPV6_JOIN_GROUP, mreq)