allow binaries built with IPv6 support run on non-IPv6 systems. from Niels Provos <provos@monkey.org>
allow binaries built with IPv6 support run on non-IPv6 systems. from Niels Provos <provos@monkey.org>


git-svn-id: 935794000d934034fad4bb4152be248a7507e5ff@491 0c474577-fa26-0410-a966-bdb198e94e9e

hellais/libdnet,hellais/libdnet,hellais/libdnet,hellais/libdnet