I will add each USE flag one by one and verify it... But I could say go for PPC64.
now testing blas-atlas , if it works then Ill recompile R with +blas
version 2.0.0 is now marked as ~ppc64 for about one month. is it tested? can I mark it stable?
I unfortunately don't have any machine to test it on yet...
I've tested 2.0.0 some time now and made it stable on ppc64.