numam-dpdk/mk/rte.extsubdir.mk

#   BSD LICENSE
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#   Copyright(c) 2014 6WIND S.A.
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MAKEFLAGS += --no-print-directory

ALL_DEPDIRS := $(patsubst DEPDIRS-%,%,$(filter DEPDIRS-%,$(.VARIABLES)))

# output directory
O ?= .
BASE_OUTPUT ?= $(O)
CUR_SUBDIR ?= .

.PHONY: all
all: $(DIRS-y)

.PHONY: clean
clean: $(DIRS-y)

.PHONY: $(DIRS-y)
$(DIRS-y):
	@echo "== $@"
	$(Q)$(MAKE) -C $(@) \
		M=$(CURDIR)/$(@)/Makefile \
		O=$(BASE_OUTPUT)/$(CUR_SUBDIR)/$(@)/$(RTE_TARGET) \
		BASE_OUTPUT=$(BASE_OUTPUT) \
		CUR_SUBDIR=$(CUR_SUBDIR)/$(@) \
		S=$(CURDIR)/$(@) \
		DEPDIRS="$(DEPDIRS-$@)" \
		$(filter-out $(DIRS-y),$(MAKECMDGOALS))

define depdirs_rule
$(DEPDIRS-$(1)):

$(1): | $(DEPDIRS-$(1))

$(if $(D),$(info $(1) depends on $(DEPDIRS-$(1))))
endef

$(foreach dir,$(ALL_DEPDIRS),\
	$(eval $(call depdirs_rule,$(dir))))