diff -ru yum-3.4.3-orig/rpmUtils/arch.py yum-3.4.3/rpmUtils/arch.py

--- yum-3.4.3-orig/rpmUtils/arch.py	2011-06-28 17:01:10.009680846 -0400

+++ yum-3.4.3/rpmUtils/arch.py	2011-06-28 17:01:31.849916539 -0400

@@ -3,7 +3,7 @@

 import ctypes

 import struct

-_ppc64_native_is_best = False

+_ppc64_native_is_best = True

 # dict mapping arch -> ( multicompat, best personality, biarch personality )

 multilibArches = { "x86_64":  ( "athlon", "x86_64", "athlon" ),

Only in yum-3.4.3/rpmUtils: arch.py~