Okay, I mispoke...not every test fails on
Darwin PPC at -m64...
=== libffi Summary for unix/-m32 ===
# of expected passes 1068
# of expected failures 8
# of unsupported tests 8
=== libffi Summary for unix/-m64 ===
# of expected passes 472
# of unexpected failures 384
# of expected failures 8
# of unsupported tests 8
=== libffi Summary ===
# of expected passes 1540
# of unexpected failures 384
# of expected failures 16
# of unsupported tests 16
