makefile文件
(一.)MTK_PLATFORM := $(subst ",,$(CONFIG_MTK_PLATFORM))
将空格替换空格,意思就是直接将CONFIG_MTK_PLATFORM 赋值给 MTK_PLATFORM
例如:
$(subst ee,EE,feet on the street),把“ feet on the street”中的“ ee”替换成“ EE”,返回结果是“ fEEt on the strEEt”。
(二.)MTK_CUSTOM_PATH := $(srctree)/drivers/misc/mediatek/