scripts/build/arch/powerpc.sh
2014-05-12 arch/powerpc: add powerpc64le support
2013-01-20 arch: allow adding a suffix to the arch-part of a tuple
2011-10-16 arch/powerpc: fix tuple for uClibc
2011-09-17 gcc: add support for the PowerPC EABI
2009-11-17 arch/ppc: commonalise the 32- and 64-bit PowerPC arch
2009-01-31 Add support for powerpc64, along with an EXPERIMENTAL sample.
2008-10-23 Architecture API change:
2008-10-05 Separate the architecture config file and function script.