| ## AAPT Flags | 
 | # aapt doesn't accept multiple --extra-packages flags. | 
 | # We have to collapse them into a single --extra-packages flag here. | 
 | LOCAL_AAPT_FLAGS := $(strip $(LOCAL_AAPT_FLAGS)) | 
 | ifdef LOCAL_AAPT_FLAGS | 
 |   ifeq ($(filter 0 1,$(words $(filter --extra-packages,$(LOCAL_AAPT_FLAGS)))),) | 
 |     aapt_flags := $(subst --extra-packages$(space),--extra-packages@,$(LOCAL_AAPT_FLAGS)) | 
 |     aapt_flags_extra_packages := $(patsubst --extra-packages@%,%,$(filter --extra-packages@%,$(aapt_flags))) | 
 |     aapt_flags_extra_packages := $(sort $(subst :,$(space),$(aapt_flags_extra_packages))) | 
 |     LOCAL_AAPT_FLAGS := $(filter-out --extra-packages@%,$(aapt_flags)) \ | 
 |         --extra-packages $(subst $(space),:,$(aapt_flags_extra_packages)) | 
 |     aapt_flags_extra_packages := | 
 |     aapt_flags := | 
 |   endif | 
 | endif |