+ARCH:=$(call qstrip,$(CONFIG_ARCH))
+BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
+TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
+BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
+GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
+SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})