## if CS_ARCH already set assume this is a repeat include and ignore it

ifeq (x$(CS_ARCH),x)

# check that we are on a 64-bit OS

ifneq (64,$(shell getconf LONG_BIT))

$(error CSTools will only run on a 64-bit Linux operating system)

endif

# If we are running on MacOS uname printed Darwin

ifeq (Darwin,$(shell test -x /usr/bin/uname && /usr/bin/uname -s))

$(info Compiling/Running on MacOS)

$(info Please check that this compiles and runs on a CAT suite system before submission.)

$(shell test -x /usr/bin/xattr && xattr -rd com.apple.quarantine .)

export CXX=g++

export CS_ARCH=macos

export CX_ARCH=cats

else ifeq (4.8.5,$(shell test -x /usr/bin/g++ && /usr/bin/g++ --version | head -1 | cut -f 3 -d ' '))

#$(info export CXX=/usr/bin/g++)

export CXX=/usr/bin/g++

export CS_ARCH=cats

export CX_ARCH=macos

# Just in case its ubuntu and g++ 4.8.5 is actually /usr/bin/g++-4.8

else ifeq (4.8.5,$(shell test -x /usr/bin/g++-4.8 && /usr/bin/g++-4.8 --version | head -1 | cut -f 3 -d ' '| cut -f 1,1 -d '-'))

$(info export CXX=/usr/bin/g++-4.8)

$(info Please check that this compiles and runs on a CAT suite system before submission.)

export CXX=/usr/bin/g++-4.8

export CS_ARCH=cats

export CX_ARCH=macos

else

$(info Set environment variable CXX to the name of your g++ 4.8.5 compiler)

$(info To install g++ 4.8.5 on Ubuntu run: apt-get install g++-4.8)

$(error Cannot find your version 4.8.5 compatible g++ compiler)

endif

endif