modified:   controller/controller/controller_sample.c

o Disable cpu_bind() on FreeBSD. The interface is different on FreeBSD. Leave
  implementing it for a future visitor to this file.
o Switch to CLOCK_MONOTONIC on FreeBSD. My test system doesn't implement
  CLOCK_MONOTONIC_PRECISE.
o DOn't set the stack size of new threads to PTHREAD_STACK_MIN on FreeBSD.
  Things will explode otherwise.