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#   BSD LICENSE
# 
#   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
#   All rights reserved.
# 
#   Redistribution and use in source and binary forms, with or without 
#   modification, are permitted provided that the following conditions 
#   are met:
# 
#     * Redistributions of source code must retain the above copyright 
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright 
#       notice, this list of conditions and the following disclaimer in 
#       the documentation and/or other materials provided with the 
#       distribution.
#     * Neither the name of Intel Corporation nor the names of its 
#       contributors may be used to endorse or promote products derived 
#       from this software without specific prior written permission.
# 
#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# 

#
# include rte.vars.mk if config file exists
#
ifeq (,$(wildcard $(RTE_OUTPUT)/.config))
  $(error "need a make config first")
else
  include $(RTE_SDK)/mk/rte.vars.mk
endif

#
# include .depdirs and define rules to order priorities between build
# of directories.
#
-include $(RTE_OUTPUT)/.depdirs

define depdirs_rule
$(1): $(sort $(LOCAL_DEPDIRS-$(1)))
endef

$(foreach d,$(ROOTDIRS-y),$(eval $(call depdirs_rule,$(d))))

#
# build and clean targets
#

CLEANDIRS = $(addsuffix _clean,$(ROOTDIRS-y) $(ROOTDIRS-n) $(ROOTDIRS-))

.PHONY: build
build: $(ROOTDIRS-y)
	@echo Build complete

.PHONY: clean
clean: $(CLEANDIRS)
	@rm -rf $(RTE_OUTPUT)/include $(RTE_OUTPUT)/app \
		$(RTE_OUTPUT)/hostapp $(RTE_OUTPUT)/lib \
		$(RTE_OUTPUT)/hostlib $(RTE_OUTPUT)/kmod
	@[ -d $(RTE_OUTPUT)/include ] || mkdir -p $(RTE_OUTPUT)/include
	@$(RTE_SDK)/scripts/gen-config-h.sh $(RTE_OUTPUT)/.config \
		> $(RTE_OUTPUT)/include/rte_config.h
	$(Q)$(MAKE) -f $(RTE_SDK)/Makefile gcovclean
	@echo Clean complete

.SECONDEXPANSION:
.PHONY: $(ROOTDIRS-y)
$(ROOTDIRS-y):
	@[ -d $(BUILDDIR)/$@ ] || mkdir -p $(BUILDDIR)/$@
	@echo "== Build $@"
	$(Q)$(MAKE) S=$@ -f $(RTE_SRCDIR)/$@/Makefile -C $(BUILDDIR)/$@ all

%_clean:
	@echo "== Clean $*"
	$(Q)if [ -f $(RTE_SRCDIR)/$*/Makefile -a -d $(BUILDDIR)/$* ]; then \
		$(MAKE) S=$* -f $(RTE_SRCDIR)/$*/Makefile -C $(BUILDDIR)/$* clean ; \
	fi

RTE_MAKE_SUBTARGET ?= all

%_sub: $(addsuffix _sub,$(FULL_DEPDIRS-$(*)))
	@echo $(addsuffix _sub,$(FULL_DEPDIRS-$(*)))
	@[ -d $(BUILDDIR)/$* ] || mkdir -p $(BUILDDIR)/$*
	@echo "== Build $*"
	$(Q)$(MAKE) S=$* -f $(RTE_SRCDIR)/$*/Makefile -C $(BUILDDIR)/$* \
		$(RTE_MAKE_SUBTARGET)

.PHONY: all
all: build

.PHONY: FORCE
FORCE: