#   BSD LICENSE
#
#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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#       notice, this list of conditions and the following disclaimer.
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ifeq (,$(wildcard $(RTE_OUTPUT)/.config))
  $(error "need a make config first")
endif
ifeq (,$(wildcard $(RTE_OUTPUT)/Makefile))
  $(error "need a make config first")
endif

DEPDIR_FILES = $(addsuffix /.depdirs, $(addprefix $(BUILDDIR)/,$(ROOTDIRS-y)))

.PHONY: depdirs
depdirs: $(RTE_OUTPUT)/.depdirs
$(RTE_OUTPUT)/.depdirs: $(DEPDIR_FILES)
	@rm -f $@
	@sort -u -o $@ $(DEPDIR_FILES)

$(DEPDIR_FILES): $(RTE_OUTPUT)/.config
	@dir=$(notdir $(@D)); \
	[ -d $(BUILDDIR)/$$dir ] || mkdir -p $(BUILDDIR)/$$dir; \
	$(MAKE) S=$$dir -f $(RTE_SRCDIR)/$$dir/Makefile depdirs > $@

.PHONY: depgraph
depgraph:
	@echo "digraph unix {" ; \
	echo "    size=\"6,6\";" ; \
	echo "    node [color=lightblue2, style=filled];" ; \
	for d in $(ROOTDIRS-y); do \
		echo "    \"root\" -> \"$$d\"" ; \
		if [ -f $(RTE_SRCDIR)/$$d/Makefile ]; then \
			$(MAKE) S=$$d -f $(RTE_SRCDIR)/$$d/Makefile depgraph ; \
		fi ; \
	done ; \
	echo "}"