-O4 may be slower if you don't have profiling info (as HP pal told me

#               Also sends +Oprocelim and +Ofastaccess to the linker

#               (see ld(1)).

release_flags="-fast +O4"

release_flags="-fast +O3"

# -z             Do not bind anything to address zero.  This option

#                allows runtime detection of null pointers.  See the