If LOCAL_COPY_HEADERS_TO is not set, then the copy headers rule
target is set to out/target/product/../obj/include//header.h.
If another rule depends on the header without the //, it will
fail. Don't insert LOCAL_COPY_HEADERS_TO if it is blank.
Change-Id: Ideac7f8e01288ab5cca98645b307945d6ae9e97c
$(foreach header,$(LOCAL_COPY_HEADERS), \
$(eval _chFrom := $(LOCAL_PATH)/$(header)) \
$(eval _chTo := \
- $($(my_prefix)OUT_HEADERS)/$(LOCAL_COPY_HEADERS_TO)/$(notdir $(header))) \
+ $(if $(LOCAL_COPY_HEADERS_TO),\
+ $($(my_prefix)OUT_HEADERS)/$(LOCAL_COPY_HEADERS_TO)/$(notdir $(header)),\
+ $($(my_prefix)OUT_HEADERS)/$(notdir $(header)))) \
$(eval $(call copy-one-header,$(_chFrom),$(_chTo))) \
$(eval all_copied_headers: $(_chTo)) \
)