IPv6 Specific Packages There are a few packages which specifically deal with IPv6 items. Most of these are located in /usr/portage/net-misc. Package Description net-misc/ipv6calc Converts an IPv6 address to a compressed format net-misc/nc6 netcat version that supports IPv6 and IPv4 dev-perl/Socket6 IPv6 related part of the C socket.h defines and structure manipulators s:net-misc/nc6:net-analizer/netcat6: will fix the problem.
Fixed in CVS. Thanks for reporting.