> However, this still raises the interesing question of whether endian-ness
> even belongs in MACHINE_ARCH.  Obviously for some processors endian-ness
> is determined by MACHINE_ARCH, so besides Mips and Hitachi, what other
> processors can run in big or little endian modes?

IA-64.  Forthcoming (i386) applications must prepare for bi-endianness.

Tohru Nishimura
Nara Institute of Science and Technology