[Samba] SAMBA install on IRIX 6.5

[McDougald, James D. (Contr)]

I am having problems with Samba on IRIX 6.5 authenticating via Active
Directory. Installing the tardist of 3.0.21c did not give me
kerberos/ldap/adc capabilities even though Kerberos and LDAP were
prereq's. With OpenLDAP and Kerberos5 installed, my configure fails. I
am trying this:

./configure --libdir=/usr/lib --includedir=/usr/include
--prefix=/usr/samba --with-ldap --with-ads --with-krb5=/usr/local
--with-quotas --with-acl-support

checking for LDAP support... yes
checking ldap.h usability... yes
checking ldap.h presence... yes
checking for ldap.h... yes
checking lber.h usability... yes
checking lber.h presence... yes
checking for lber.h... yes
checking for ber_scanf in -llber... no
checking for ldap_init in -lldap... no
checking for ldap_set_rebind_proc... no
checking whether ldap_set_rebind_proc takes 3 arguments... 3
configure: error: libldap is needed for LDAP support

mma-riss01 53# ls -la /usr/include/*ldap*
-rw-r--r--    1 root     sys        39901 Mar 23 07:13
/usr/include/ldap.h
-rw-r--r--    1 root     sys         9136 Mar 23 07:13
/usr/include/ldap_cdefs.h
-rw-r--r--    1 root     sys         2056 Mar 23 07:13
/usr/include/ldap_features.h
-rw-r--r--    1 root     sys         9462 Mar 23 07:13
/usr/include/ldap_schema.h
-rw-r--r--    1 root     sys         3549 Mar 23 07:13
/usr/include/ldap_utf8.h


mma-riss01 54# ls -la /usr/lib/*ldap*
lrwxr-xr-x    1 root     sys           29 Mar 23 09:15
/usr/lib/libldap.a -> /usr/freeware/lib32/libldap.a
lrwxr-xr-x    1 root     sys           30 Mar 23 09:15
/usr/lib/libldap.so -> /usr/freeware/lib32/libldap.so
lrwxr-xr-x    1 root     sys           32 Mar 23 09:15
/usr/lib/libldap.so.3 -> /usr/freeware/lib32/libldap.so.3
lrwxr-xr-x    1 root     sys           31 Mar 23 09:15
/usr/lib/libldap_r.a -> /usr/freeware/lib32/libldap_r.a
lrwxr-xr-x    1 root     sys           32 Mar 23 09:15
/usr/lib/libldap_r.so -> /usr/freeware/lib32/libldap_r.so
lrwxr-xr-x    1 root     sys           34 Mar 23 09:15
/usr/lib/libldap_r.so.3 -> /usr/freeware/lib32/libldap_r.so.3

And I even tried to use the environment variable :
LD_LIBRARY=/usr/lib:/usr/include

Any Suggestions?