Merge "Prevent enabling prebuilts by default for builds that don't support them"

# MODULE_BUILD_FROM_SOURCE.

BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

ifneq ($(SANITIZE_TARGET)$(EMMA_INSTRUMENT_FRAMEWORK),)

  # Always use sources when building the framework with Java coverage or

  # sanitized builds as they both require purpose built prebuilts which we do

  # not provide.

  BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

endif

# ART does not provide linux_bionic variants needed for products that

# set HOST_CROSS_OS=linux_bionic.

ifeq (linux_bionic,${HOST_CROSS_OS})

  BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

endif

# ART does not provide host side arm64 variants needed for products that

# set HOST_CROSS_ARCH=arm64.

ifeq (arm64,${HOST_CROSS_ARCH})

  BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

endif

# TV based devices do not seem to work with prebuilts, so build from source

# for now and fix in a follow up.

ifneq (,$(filter tv,$(subst $(comma),$(space),${PRODUCT_CHARACTERISTICS})))

  BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

endif

# ATV based devices do not seem to work with prebuilts, so build from source

# for now and fix in a follow up.

ifneq (,${PRODUCT_IS_ATV})

  BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true

endif

ifneq (,$(MODULE_BUILD_FROM_SOURCE))

  # Keep an explicit setting.

else ifeq (,$(filter docs sdk win_sdk sdk_addon,$(MAKECMDGOALS))$(findstring com.google.android.conscrypt,$(PRODUCT_PACKAGES)))