FEEDS_ENABLED:=$(foreach feed,$(FEEDS_INSTALLED),$(if $(CONFIG_FEED_$(feed)),$(feed)))
FEEDS_DISABLED:=$(filter-out $(FEEDS_ENABLED),$(FEEDS_AVAILABLE))
FEEDS_ENABLED:=$(foreach feed,$(FEEDS_INSTALLED),$(if $(CONFIG_FEED_$(feed)),$(feed)))
FEEDS_DISABLED:=$(filter-out $(FEEDS_ENABLED),$(FEEDS_AVAILABLE))