Add extra lib flags (-latomic,-lrt) to gcc.
Add extra lib flags (-latomic,-lrt) to gcc.

ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env,ctuning/ck-env