bind-dyndb-ldap and AttributeType not found

[Brendan Kearney <bpk678@gmail.com>]

all,

i am trying to load the bind-dyndb-ldap schema into my ldap instance and
keep getting an error 'AttributeType not found: "ARecord"'.  from what i
can tell, the ARecord AttributeType is defined by the cosine schema,
which is loaded and present in the ldap instance.  I have the dnszone
schema loaded too and i am serving static dns entries out of ldap right
now.  it would seem that the prerequisites for bind-dyndb-ldap are
fulfilled, but i cant load the schema.  some details:

[root@server cn=schema]# slapd -V
@(#) $OpenLDAP: slapd 2.4.26 (Jun 27 2012 15:27:46) $

mockbuild@x86-16.phx2.fedoraproject.org:/builddir/build/BUILD/openldap-2.4.26/openldap-2.4.26/build-servers/servers/slapd

[root@server schema]# slaptest -v -d9 -f ./dns-dyndb.schema
-F ../slapd.d/cn\=config/cn\=schema/
slaptest init: initiated tool.
slap_sasl_init: initialized!
bdb_back_initialize: initialize BDB backend
bdb_back_initialize: Berkeley DB 5.2.36: (September 14, 2011)
hdb_back_initialize: initialize HDB backend
hdb_back_initialize: Berkeley DB 5.2.36: (September 14, 2011)
null_back_initialize: initialize null backend
backend_startup_one: starting "cn=config"
./dns-dyndb.schema: line 296 objectclass: AttributeType not found:
"ARecord"
slaptest: bad configuration directory!

Since the cosine schema is loaded, the ARecord AttributeType is
available for reference by this schema, but it does not seem to load.
am i missing something obvious?  can anyone shed light on this?

to make sure i was going about this right, i also tried it this way:

[root@server openldap]# cat this.out
include /etc/openldap/schema/dns-dyndb.schema
[root@server openldap]# slaptest -v -d9 -f /etc/openldap/this.out
-F /etc/openldap/slapd.d/
slaptest init: initiated tool.
slap_sasl_init: initialized!
bdb_back_initialize: initialize BDB backend
bdb_back_initialize: Berkeley DB 5.2.36: (September 14, 2011)
hdb_back_initialize: initialize HDB backend
hdb_back_initialize: Berkeley DB 5.2.36: (September 14, 2011)
null_back_initialize: initialize null backend
backend_startup_one: starting "cn=config"
/etc/openldap/schema/dns-dyndb.schema: line 296 objectclass:
AttributeType not found: "ARecord"
slaptest: bad configuration directory!

still got the error...