cm: Add missing bits from system-ccache commit

endif

ifneq ($(USE_CCACHE),)

    # Detect if the system already has ccache installed to use instead of the prebuilt

    ccache := $(shell which ccache)

    ifeq ($(ccache),)

        ccache := $(ANDROID_BUILD_TOP)/prebuilts/misc/$(HOST_PREBUILT_TAG)/ccache/ccache

        # Check that the executable is here.

        ccache := $(strip $(wildcard $(ccache)))

    endif

endif

KERNEL_CROSS_COMPILE := CROSS_COMPILE="$(ccache) $(KERNEL_TOOLCHAIN_PATH)"

ccache =