aix_31
aix_i386
aix_rt
aos_rt
apollo_68k
common
dec_mips
dec_mips_42
dec_vax
hp_68k
hp_pa_risc
next_mach
sco_i386
sgi_mips
sun_68k
sun_68k_41
sun_sparc
sun_sparc_41
i386_mach
