Patch ping - Add a new option "-fstack-protector-strong"

[沈涵]

Hi, I'd like to ping the patch '-fstack-protector-strong':

- http://gcc.gnu.org/ml/gcc-patches/2013-04/msg00945.html
  Add a new option '-fstack-protector-strong' to protect only
stack-smashing-vulnerable functions.

Thanks,
H.