Merge "Revert "Require TARGET_RELEASE for builds"" into main

)

FLAG_DECLARATION_FILES :=

ifeq ($(TARGET_RELEASE),)

    # We allow some internal paths to explicitly set TARGET_RELEASE to the

    # empty string.  For the most part, 'make' treats unset and empty string as

    # the same.  But the following line differentiates, and will only assign

    # if the variable was completely unset.

    TARGET_RELEASE ?= was_unset

    ifeq ($(TARGET_RELEASE),was_unset)

        $(error No release config set for target; please set TARGET_RELEASE, or if building on the command line use 'lunch <target>-<release>-<build_type>', where release is one of: $(_all_release_configs))

    endif

    # Instead of leaving this string empty, we want to default to a valid

    # setting.  Full builds coming through this path is a bug, but in case

    # of such a bug, we want to at least get consistent, valid results.

    TARGET_RELEASE = trunk_staging

endif

# If TARGET_RELEASE is set, fail if there is no matching release config

# If it isn't set, no release config files will be included and all flags

# will get their default values.

ifneq ($(TARGET_RELEASE),)

ifeq ($(filter $(_all_release_configs), $(TARGET_RELEASE)),)

    $(error No release config found for TARGET_RELEASE: $(TARGET_RELEASE). Available releases are: $(_all_release_configs))

endif

else

    # Choose flag files

    # Don't sort this, use it in the order they gave us.

    # Do allow duplicate entries, retaining only the first usage.

    $(foreach f,$(_all_release_configs.$(TARGET_RELEASE).FILES), \

      $(if $(filter $(f),$(flag_value_files)),,$(eval flag_value_files += $(f)))\

    )

endif

else

# Useful for finding scripts etc that aren't passing or setting TARGET_RELEASE

ifneq ($(FAIL_IF_NO_RELEASE_CONFIG),)

    $(error FAIL_IF_NO_RELEASE_CONFIG was set and TARGET_RELEASE was not)

endif

flag_value_files :=

endif

# Unset variables so they can't use them

define declare-release-config