Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Merge from tbemd:Convert from using MACHINE_ARCH to MACHINE_CPUARCH. Hoist path statementup into the top Makefile rather than repeating it on every arch Makefile.
Repo copy libpthreads to libkse.This introduces the WITHOUT_LIBKSE nob,and changes WITHOUT_LIBPTHREADS to mean with neither threading libs.Approved by: re(kensmith)
PPC MD bits for KSE. Runs test cases OK. Crippled to 1:1 mode forthe time being.