36 lines
885 B
Makefile
36 lines
885 B
Makefile
# makefile self-documentation
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# http://www.cmcrossroads.com/print/article/self-documenting-makefiles
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help:
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@echo $(if $(need-help),,Type \'make$(dash-f) help\' to get help)
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need-help := $(filter help,$(MAKECMDGOALS))
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define def-help
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$(if $(need-help),$(warning $1 --$2))
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endef
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# define print-lines
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# @echo $1
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# endef
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# $(if $(true),$(printf $1),$(printf '\n'$1))
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define def-help-section
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$(if $(need-help),$(warning --------------------$1--------------------$2))
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endef
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define def-help-subsection
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$(if $(need-help),$(warning $1$2))
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endef
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define last-element
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$(word $(words $1),$1)
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endef
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this-makefile := $(call last-element,$(MAKEFILE_LIST))
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other-makefiles := $(filter-out $(this-makefile),$(MAKEFILE_LIST))
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parent-makefile := $(call last-element,$(other-makefiles))
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dash-f := $(if $(filter-out Makefile makefile GNUmakefile, $(parent-makefile)), -f $(parent-makefile))
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