TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
-DEBUG_DIR:=$(BUILD_DIR)/debug-$(BOARD)
BUILD_LOG_DIR:=$(TOPDIR)/logs
TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(PATH)
export $(call shvar,$(1))
endef
+define include_mk
+$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
+endef
+
# file extension
ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))