pam_radius on RHEL AS4 (64-bit)

[GABRIEL CAPILI, BLOOMBERG/ 731 LEXIN]

I compiled the latest pam_radius-1.3.17, on Red Hat Linux AS 4.0 Update4.
When I ran 'make', I got:
"cc -Wall -fPIC -c pam_radius_auth.c -o pam_radius_auth.o
pam_radius_auth.c: In function `pam_sm_authenticate':
pam_radius_auth.c:1102: warning: assignment from incompatible pointer type
cc -Wall -fPIC   -c -o md5.o md5.c
ld -Bshareable pam_radius_auth.o md5.o -lpam -o pam_radius_auth.so"
-and it looked like it created the 'pam_radius_auth.so".
When I 'file pam_radius_auth.so', it shows:
"pam_radius_auth.so: ELF 64-bit LSB shared object, AMD x86-64, version 1 
(SYSV), not stripped"
which to me looks fine, and added it to /lib/security. I added                  
  "auth       sufficient   pam_radius_auth.so" to /etc/pam.d/sshd and           
"auth        sufficient    /lib/security/pam_radius_auth.so" to /etc/pam.d/
system.auth files. I tested w/ ssh, it doesn't authenticate. Will it work w/ 64-
bit? Thanks.  -Gabe