1ZLIB_VERSION := zlib-1.2.3 2LIBPNG_VERSION := libpng-1.2.19 3 4ZLIB_DIR = $(SRC_PATH)/distrib/$(ZLIB_VERSION) 5LIBPNG_DIR := $(SRC_PATH)/distrib/$(LIBPNG_VERSION) 6 7include $(ZLIB_DIR)/Makefile 8include $(LIBPNG_DIR)/Makefile 9