[Samba] Samba 3.0.0 problem

[giovanni at sorint.it]

I have compiled samba3.0.0 beta3 with --with-ldapsam option. 

This is my smb.conf 
[global]
        passdb backend = ldapsam:ldap://10.10.5.160 guest
        wins support = Yes
        ldap suffix = o=domain,c=it
        ldap machine suffix = ou=people,o=domain,c=it
        ldap user suffix = ou=people,o=domain,c=it
        ldap group suffix = ou=group,o=domain,c=it
        ldap idmap suffix = o=arcafondi,c=it,o=domain,c=it
        ldap admin dn = cn=Directory Manager
        ldap passwd sync = Yes
        ldap server = localhost

When I try to connect to share in the log file I receive...
 Error loading module '/usr/local/samba3/lib/pdb/ldapsam.so': 
ld.so.1: /usr/local/samba3/sbin/smbd: 
fatal: /usr/local/samba3/lib/pdb/ldapsam.so: open failed: No such file or 
directory
[2003/07/28 09:37:53, 0] 
passdb/pdb_interface.c:make_pdb_methods_name(447)
  No builtin nor plugin backend for ldapsam found
[2003/07/28 09:37:53, 1] passdb/pdb_interface.c:make_pdb_context_list
(537)
  Loading ldapsam:ldap://10.10.5.160 failed!


I have recompiled without --with-ldapsam options ma I have the same 
problem. 
Any ideas?

Bye Giovanni