Merge "Don't strip for eng builds."

# Conditional to building on linux, as dex2oat currently does not work on darwin.

ifeq ($(HOST_OS),linux)

  WITH_DEXPREOPT ?= true

  ifeq (eng,$(TARGET_BUILD_VARIANT))

    # Don't strip for quick development turnarounds.

    DEX_PREOPT_DEFAULT := nostripping

    # For an eng build only pre-opt the boot image and system server. This gives reasonable performance

    # and still allows a simple workflow: building in frameworks/base and syncing.

  ifeq (eng,$(TARGET_BUILD_VARIANT))

    WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY ?= true

  endif

  # Add mini-debug-info to the boot classpath unless explicitly asked not to.