ifeq ($(OS),macos)
	ifeq ($(GCC),1)
		REAL_GCC:=$(shell gcc --version | grep clang &> /dev/null; echo $$?)
		ifeq ($(REAL_GCC),0)
			override GCC=
			CLANG=1
		else
			GCC=1
		endif
	else
		CLANG=1
	endif
endif

ifneq ($(CLANG),1)
GCC=1
endif