gcc for SunOS

[Thomas.Wolff@siemens.com]

Hello,
I need a newer gcc for SunOS. Is anything available for download that 
a user (non-admin) can install locally? The Sun package available 
for gcc 3.4.2 does not help as this obscure package format is apparently 
not installable without root priviledge and I have seen no way either 
to just unpack it locally (as can be done e.g. with rpm packages).
So why can no user-installable gcc archive be found anywhere on the net?

Thanks for any hints.
Thomas Wolff