currently, builtin groups are populated with sambagrouptype=5 but it should be =4 See comment #14 in the above url for details. Thanks, Norberto Reproducible: Always
This is patched in smbldap-tools-0.9.6 http://www.iallanis.info/smbldap-tools/development_release/ChangeLog I have an ebuild for that in my overlay at http://github.com/drescherjm/jmdgentoooverlay/tree/066c153a01af00fb09db7e575f12e674521bc0df/net-nds/smbldap-tools NOTE: The ebuild is not tested yet. I will try to do that at work on Monday.
smbldap-tools-0.9.6 in Portage.