Postgres 7 on IRIX

Hi there. i am trying to install postgres on IRIX 6.5 . I
downloaded the tarball, configured it with
./configure --prefix=/usr/local/pgsql --with-perl

and then, when i tried to compile it:

ahernand(at)hafnio 215 % gmake
gmake -C utils all
gmake[1]: Entering directory
`/home/ahernand/programas/postgresql-7.0/src/utils'
/usr/freeware/bin/gcc -I../include -I../backend -U_NO_XOPEN4 -woff
1164,1171,1185,1195,1552 -Wl,-woff,15 -W l,-woff,84 -c -o version.o
version.c
gcc: cannot specify -o with -c or -S and multiple compilations
gmake[1]: *** [version.o] Error 1
gmake[1]: Leaving directory
`/home/ahernand/programas/postgresql-7.0/src/utils'
gmake: *** [all] Error 2

i know its the compiler... i have gcc-2.95.2 from freeware.sgi.com, so
dont know what could be wrong...
i tried to quit that "-o blabla.o" that appears in the compilation line,
but i couldnt find which file to change...

Am i missing something?
Does anybody had this problem?

Help will be apreciated...
Thanks in advance...

Alfredo