Notes on the merge

[Jeffrey A Law]

Kenner made some pretty significant changes to how xm files are
handled.  Hopefully I got configure.in properly merged after these
changes.

Note in rs6000/sysv4.h, there's a include of linux.h that can
probably disappear with a minor configure.in tweak.


floating point conditional moves on the x86 are disabled and integer
conditional moves have been simplified.  Normally I wouldn't mention
the simplified integer conditional moves, except we've had trouble
with them in the past.  Hopefully our fixes to jump.c make the
simplification safe.


Kenner made some changes to ABI_32 on the MIPS port.  I've asked Jim
to review them to make sure they're OK.

jeff