message: Do not add --host_copt=-march=native on Power PC.
diff: @@ -502,6 +502,7 @@ def set_cc_opt_flags(environ_cp):
  for opt in cc_opt_flags.split():
  write_to_bazelrc('build:opt --copt=%s' % opt)
  # It should be safe on the same build host.
  + if not is_ppc64le():
  write_to_bazelrc('build:opt --host_copt=-march=native')
  write_to_bazelrc('build:opt --define with_default_optimizations=true')
  # TODO(mikecase): Remove these default defines once we are able to get
  