-BASE=.
-ifdef BUILD
-BUILD_POSSIBLE := $(BUILD) $(BASE)/$(BUILD)
-else
-BUILD_POSSIBLE := $(BASE) $(BASE)/build-$(shell uname --machine) $(BASE)/build
-endif
-BUILDX:= $(foreach i,$(BUILD_POSSIBLE),$(wildcard $(i)/environment.mak*))
-BUILDX:= $(patsubst %/,%,$(firstword $(dir $(BUILDX))))
-override BLD := $(BUILDX)