cmake: use PERF_LOCAL_FLAGS only if defined

[michelmno]

in src/test/CMakeLists.txt
to avoid build error for ppc64/ppc64le archi

Fixes: http://tracker.ceph.com/issues/17104
Signed-off-by: Michel Normand normand@linux.vnet.ibm.com

[michelmno]

@smithfarm I made a bypass but not sure this is the correct way to address the issue #17104

[smithfarm]

@tchaikov @alimaredia

[tchaikov]

better off putting

if(PERF_LOCAL_FLAGS)
  set_target_properties(ceph_perf_local PROPERTIES
    COMPILE_FLAGS ${PERF_LOCAL_FLAGS})
endif()

[smithfarm]

@michelmno The ppc64(le) build failures are gone[1], so perhaps this is no longer needed?

Nevermind.

[tchaikov]

@michelmno
could you prefix the title of your commit message with the subcomponent your are changing ? see https://github.com/ceph/ceph/blob/master/SubmittingPatches.rst#preparing-and-sending-patches, in this case, the prefix would be 'cmake: '.

[smithfarm]

@tchaikov If you like, I can put this through gitbuilder and an upgrade suite test.

[tchaikov]

lgtm once gb are happy.

@smithfarm thanks. i guess as long as gitbuilders are happy, the PR is good to merge.

[smithfarm]

pushed perf_local_flags to gitbuilder (remind self to delete it afterwards)

[smithfarm]

@tchaikov Passes gitbuilder.

[smithfarm]

Reviewed-by: Nathan Cutler <ncutler@suse.com>

[tchaikov]

@smithfarm i removed perf_local_flags branch also.