First the good, to make sure that my make & ppc gcc are set properly:
PPC-SPC560B-GCC in 2.6.5 complies just fine:

First issue: PPC-SPC563M-GCC in 2.6.5 (same with 2.6.4):

It looks like os/hal/platforms/SPC5xx/DSPI_v1/spi_lld.c is just not there! Once I've copied the missing folder from 2.6 trunk, it compiles just fine. Is there an issue with release building script, if there is such thing as release building script?

Speaking about 2.6 trunk version, here is another issue: build fails at the end while processing the artifacts:
