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https://github.com/checkpoint-restore/criu.git
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3ddf271a5b
Add ability to specify prerequsites and phony targets. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
35 lines
659 B
Makefile
35 lines
659 B
Makefile
ifndef ____nmk_defined__macro
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#
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# Helper to include makefile only once.
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#
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define include-once
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ifndef $(join ____nmk_defined__,$(1:.mk=))
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include $(__nmk_dir)$(1)
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endif
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endef
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# Helper to build built-in target in directory.
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# $(eval $(call gen-built-in,<dir>,<prerequsite>,<phony>))
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define gen-built-in
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$(1)/%: $(2)
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$$(Q) $$(MAKE) $$(build)=$(1) $$@
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ifneq ($(3),)
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$(3): $(2)
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$$(Q) $$(MAKE) $$(build)=$(1) all
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.PHONY: $(3)
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$(1)/built-in.o: $(3)
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else
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$(1): $(2)
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$$(Q) $$(MAKE) $$(build)=$(1) all
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.PHONY: $(1)
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$(1)/built-in.o: $(1)
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endif
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endef
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#
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# Footer.
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$(__nmk_dir)scripts/macro.mk:
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@true
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____nmk_defined__macro = y
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endif
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