ad50cc52fb
The ubsan flag was not defined until gcc 4.9 and does not work on centOS 6. Change-Id: Iad652d8aedec8dc5b774bb43f544f7916197b43d Signed-off-by: Seth Howell <seth.howell@intel.com> Reviewed-on: https://review.gerrithub.io/367622 Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>