command line options cause segfault (1.2, 1.3)

It's the darnest thing.  I'm running on FC 2 on an intel box.  Gnu 
Radius 1.2, 1.2.95 and 1.3 give the same results.  I built from the 
source code using gcc 3.3.3.

# /usr/local/sbin/radiusd -p 1645
Segmentation fault

What's strange is that it doesn't complain if I give it a -d or -f.  It 
seems to ignore -P.  (I'm running multiple radiusd on the same host 
using different configurations, so I really need those to work.)

Debugging shows that it's failing in parse_opt trying to assign values 
based on optarg.  However, it seems that optarg is always null.  Any 
ideas what I'm missing here?  I've got the same source code compiled on 
a Solaris box and it works fine there.

Thanks.

-Greg G