CISCO VPN client for x86_64

[Alessandro Brezzi]

Hi all,
any suggestion on how to successfull build CISCO VPN client on x86_64 machine?
I've got:

/home/alex/vpn/vpnclient/GenDefs.h:110:2: warning: #warning 64 bit
....
make[2]: *** No rule to make target
`/home/alex/vpn/vpnclient/libdriver64.so', needed by
`/home/alex/vpn/vpnclient/cisco_ipsec.o'.  Stop.
make[1]: *** [_module_/home/alex/vpn/vpnclient] Error 2

Thanks in advance

-- 
Alessandro Brezzi