UNAME = ${shell uname}

ifeq (${UNAME}, Darwin)
LDFLAGS 	+= -framework GLUT -framework OpenGL
else
ifeq  (${UNAME}, Linux)
CPPFLAGS	+= ${shell pkg-config --cflags glu}
LDFLAGS 	+= ${shell pkg-config --libs glu} -lglut
else
CPPFLAGS	+= ${shell pkg-config --cflags glu glut} -DFREEBSD=1
LDFLAGS 	+= ${shell pkg-config --libs glu glut}
endif
endif

ifeq  (${UNAME}, FreeBSD)
CPPFLAGS	+= -DFREEBSD=1 -DNO_ALLOCA=1
endif