As we are about to build a
(commercial) product on Freescale P1021 and therefore are considering the
existing but "unofficial" debian port for powerpcspe (http://wiki.debian.org/PowerPCSPEPort)
we require to have the opportunity to build packages on our own from
source. It should be pacifying enough for us to apt-build standard
application packages from source using the binary build tool chain which already
exists.