Building nfs-kernel-server with --enable-ipv6 requires not yet packaged
libtirpc, therfore unconditionally disable IPv6 support again for now.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
config.log reports
WARNING: uuid support disabled as libblkid is too old
because the test macro AC_BLKID_VERS is not cross compile friendly
resulting in libblkid_cv_is_recent=unknown
Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>