The pam support in OpenOffice seem to use the "su" service to check out users, the "su" service (which btw is not really a good idea to use in my opinion) is provided by sys-apps/shadow _only_ with pam USE flag enabled; or by freebsd-ubin.
I've added a check for the sys-apps/shadow / pam usage in openoffice-2.4.0_rc5, hope this is sufficient.
(In reply to comment #1) > I've added a check for the sys-apps/shadow / pam usage in openoffice-2.4.0_rc5, > hope this is sufficient. > 2.4.0 is in the tree, closing this