Samba4 build error in 'lazy_initialize_passdb'

[steve]

Git from 10:00 CET this morning:
openSUSE 12.1

[3466/3811] Linking default/source3/libpdb.so
default/source3/passdb/pdb_interface_27.o: In function 
`lazy_initialize_passdb':
/home/steve/samba-master/bin/../source3/passdb/pdb_interface.c:51: 
undefined reference to `pdb_ads_init'
collect2: ld returned 1 exit status
Waf: Leaving directory `/home/steve/samba-master/bin'
Build failed:  -> task failed (err #1):
	{task: cc_link 
pdb_tdb_1.o,server_mutex_33.o,pdb_get_set_27.o,passdb_27.o,util_wellknown_27.o,util_builtin_27.o,pdb_compat_27.o,util_unixsids_27.o,lookup_sid_27.o,login_cache_27.o,account_pol_27.o,privileges_27.o,util_nscd_27.o,winbind_util_27.o,pdb_util_27.o,pdb_interface_27.o,pdb_ldap_schema_27.o,pdb_secrets_27.o,pdb_unixid_27.o,pdb_wbc_sam_4.o,idmap_6.o,pdb_samba4_5.o,pdb_ldap_2.o,pdb_nds_2.o,pdb_ipa_2.o,pdb_ldap_util_2.o,mapping_25.o,mapping_tdb_25.o,pdb_smbpasswd_3.o 
-> libpdb.so}
make: *** [all] Error 1

Could someone have a quick look?

Cheers,
Steve