tools_enabled = $(foreach tool,$(sort $(tools-y) $(tools-)),$(if $(filter $(tool),$(tools-y)),y,n))
$(eval $(call stampfile,$(curdir),tools,install,,_$(subst $(space),,$(tools_enabled))))
+$(eval $(call stampfile,$(curdir),tools,check,$(TMP_DIR)/.build))
$(eval $(call subdir,$(curdir)))