ruby-ldap 0.9.7 build failure

[Daniel Berger]

Solaris 10
Sun Studio 12
ruby-ldap 0.9.7

djberge-/export/home/djberge/src/ruby/ruby-ldap-0.9.7-518>ruby
extconf.rb --with-ldap-dir=/opt/csw
--with-openldap2
checking for ldap.h... yes
checking for lber.h... yes
checking for ldap_ssl.h... no
checking for openssl/ssl.h... yes
checking for openssl/crypto.h... yes
checking for main() in -lcrypto... yes
checking for main() in -lssl... yes
checking for main() in -lnsl... yes
checking for main() in -lpthread... yes
checking for main() in -lresolv... yes
checking for main() in -llber... yes
checking for main() in -lldap_r... yes
checking for main() in -lldap... yes
checking for ldap_init()... yes
checking for ldap_set_option()... yes
checking for ldap_get_option()... yes
checking for ldap_start_tls_s()... yes
checking for ldap_memfree()... yes
checking for ldap_perror()... yes
checking for ldap_sort_entries()... yes
checking for ldapssl_init()... no
checking for ldap_sslinit()... no
checking for ldap_sasl_bind_s()... yes
checking for ldap_compare_s()... yes
checking for ldap_add_ext_s()... yes
checking for ldap_compare_ext_s()... yes
checking for ldap_delete_ext_s()... yes
checking for ldap_modify_ext_s()... yes
checking for ldap_search_ext_s()... yes
checking for ldap_unbind_ext_s()... yes
checking for ldap_sasl_interactive_bind_s()... yes
creating Makefile
...
saslconn.c
"saslconn.c", line 63: undefined symbol: LDAP_SASL_AUTOMATIC
"saslconn.c", line 92: undefined symbol: LDAP_SASL_QUIET
cc: acomp failed for saslconn.c
*** Error code 2

Regards,

Dan