-ifneq ($(CONFIG_CCACHE),)
-$(foreach tool, $(tools-y), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))
+ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
+$(foreach tool, $(filter-out patch,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))