Solaris 2.6 error: IpcMemoryCreate

Hello,

I've compiled Postgresql-6.5.1 on a Sparc20.  The compilation was done
with gcc-2.7.3.  I get the following error when I start the postmaster:

********************************************************************************

IpcMemoryCreate: shmget failed (Invalid argument) key=5432001,
size=1073152, permission=600
FATAL 1:  ShmemCreate: cannot create region
********************************************************************************

I also had to add -without-CXX to get it to compile without errors.
What could be the problem?

Cheers, Luc.
P.S. Please reply to llalonde@gre.ulaval.ca