#CFLAGS="-march=native -Ofast -pipe -fstack-protector-strong --param=ssp-buffer-size=4 -fno-plt -fopenmp -pthread -Wno-error -w" #
#CFLAGS="-march=native -Og -pipe -fstack-protector-strong --param=ssp-buffer-size=4 -fno-plt" #