ifeq ($(strip $(64BIT_VERSION)),yes)\r
TARGET_ARCH += -arch x86_64\r
CXXFLAGS += -DBIT_VERSION\r
+ \r
+ #if you are using centos uncomment the following lines\r
+ #CC = g++44\r
+ #CXXFLAGS += -mtune=native -march=native -m64\r
endif\r
\r
# if you do not want to use the readline library, set this to no.\r