Check __BIG_ENDIAN__ and __LITTLE_ENDIAN__ to determine endianness.
In fallback code, check ia64 platforms for hpux vs everything else;
HP-UX uses big-endian mode.

https://github.com/krb5/krb5/commit/66f4ea3db7a9c1eb278b035fdae8ebea7636edb9
Commit By: raeburn
Revision: 22761
Changed Files:
U   trunk/src/include/k5-platform.h