$(BIN_DIR):
mkdir -p $(BIN_DIR)
-TARGETS:=linux utils
+TARGETS-y := linux utils
+TARGETS-$(CONFIG_SDK) += sdk
linux-compile: utils-install
linux-install: $(BIN_DIR)
+sdk-compile: linux-install
-download: $(patsubst %,%-source,$(TARGETS))
+download: $(patsubst %,%-source,$(TARGETS-y))
prepare: linux-prepare
compile: linux-compile
-install: image_clean linux-install
-clean: $(patsubst %,%-clean,$(TARGETS)) image_clean
+install: image_clean $(patsubst %,%-install,$(TARGETS-y))
+clean: $(patsubst %,%-clean,$(TARGETS-y)) image_clean
image_clean: FORCE
rm -f $(BIN_DIR)/openwrt-*