newbie question

[Wayne Vieira <wavieira@xxxxxxxxxxx>]

I'm trying to build optimized on an IA64. Can you give some pointers on
what flags to use? My attempt with -Ofast gives either this error:

        -lsilo  -lsgeos  -lm  -lfortran -lffio    -o .//alec
advect/AdvectHist.o: could not read symbols: Bad value
collect2: ld returned 1 exit status
make: *** [alec] Error 2


when I link without -Ofast, or with -Ofast it complains that it can't
execute the needed ipa linker:

     sgicc ERROR:  cannot exec
/usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/ipa_link


What am I doing wrong?

Wayne