compile error on HPUX 10.20

[abush at microcenter.com]

I'm trying to get openssh-1.2.2p1 to compile on HPUX 10.20 using gcc.
I have installed zlib, egd, and openssl.

This is the compile errror i am getting:
        gcc -o ssh ssh.o sshconnect.o log-client.o readconf.o
clientloop.o -L.  -L/usr/local/ssl/lib -L/usr/local/lib -lssh -lz
-L/usr/local/lib/ -L/usr/local/ssl/lib -lcrypto 
/usr/ccs/bin/ld: Unsatisfied symbols:
   __builtin_va_start (code)
collect2: ld returned 1 exit status
*** Error exit code 1

Stop.

Anyone know how to get past this?  If this is the wrong list them please
point me in the right direction.

Thanks,
Aaron