error compiling sasl 2.1.13

[Casey, Kevin]

i'm having trouble compiling sasl right around where it creates saslauthd.
i've troved aruond google and deja, but no luck.  i've found other people
with the problem, but nobody with an answer.

i started with:
# ./configure --sysconfdir=/etc \
--with-dblib=berkeley \
--with-bdb-incdir=/usr/local/bdb/include \
--with-bdb-libdir=/usr/local/bdb/lib \
--with-openssl=/usr/local/ssl \
--enable-login \
--enable-anon \
--disable-krb4 \
--with-saslauthd=/var/run/saslauthd \
--with-pwcheck_method=PAM \
--with-pam \

followed by:
# make

and after several hundred lines of compilation, it comes down to:
Making all in saslauthd
make[2]: Entering directory `/usr/local/src/cyrus-sasl-2.1.13/saslauthd'
gcc  -g -O2 -L/usr/local/ssl/lib -o saslauthd  mechanisms.o auth_dce.o
auth_getpwent.o auth_krb5.o auth_krb4.o auth_pam.o auth_rimap.o
auth_shadow.o auth_sia.o auth_sasldb.o lak.o auth_ldap.o cache.o utils.o
ipc_unix.o ipc_doors.o saslauthd-main.o md5.o -lcrypt
-lresolv   -lpam  -lresolv 
/usr/lib/libpam.a(pam_handlers.o): In function `_pam_add_handler':
pam_handlers.o(.text+0xb3e): undefined reference to `dlopen'
pam_handlers.o(.text+0xb65): undefined reference to `dlerror'
pam_handlers.o(.text+0xd1c): undefined reference to `dlsym'
pam_handlers.o(.text+0xd55): undefined reference to `dlsym'
/usr/lib/libpam.a(pam_handlers.o): In function `_pam_free_handlers':
pam_handlers.o(.text+0xfb4): undefined reference to `dlclose'
collect2: ld returned 1 exit status
make[2]: *** [saslauthd] Error 1
make[2]: Leaving directory `/usr/local/src/cyrus-sasl-2.1.13/saslauthd'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/cyrus-sasl-2.1.13'
make: *** [all-recursive-am] Error 2

any suggestions would be appreciatd.
thanks in advance,
kevin