ifeq ($(strip $(OSX)),y)
PNG_INCLUDE := -I/sw/include
PNG_LIB := -L/sw/lib
else
PNG_INCLUDE :=
PNG_LIB :=
endif

LIB = -L$(LUASRC) -l$(LUALIB) $(LIBDBM) -L/usr/X11R6/lib -lX11 -lpng

LIB = -L$(LUASRC) -l$(LUALIB) $(LIBDBM) -L/usr/X11R6/lib -lX11 -lpng $(PNG_LIB)

INCLUDES := $(INCLUDES) -Iutil -I. -I$(LUASRC) $(EXTRA_INCLUDES)

INCLUDES := $(INCLUDES) -Iutil -I. -I$(LUASRC) $(EXTRA_INCLUDES) $(PNG_INCLUDE)

	cd $(RLTILES) && make -f makefile.unix all && cd ..

	cd $(RLTILES) && make -f makefile.unix all CFLAGS="$(PNG_INCLUDE)" LDFLAGS="$(PNG_LIB)" && cd ..