a9e161b40d
Also included: - reworked syslinux feature inclusion - syslinux: s/textprompt/prompt/ - README++
37 lines
1.1 KiB
Makefile
37 lines
1.1 KiB
Makefile
# NB: don"t use ANY quotes ('/") for put()/add()/set() arguments!
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# shell will get confused by ' or args get spammed with "
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# pay attention to the context in which functions get called:
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# e.g. features.in/syslinux/config.mk introduces conditionals
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# this one adds whatever is given as an argument
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put = $(and $(1),$(put_body))
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define put_body
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{ $(log_body); \
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printf '%s\n' '$(1)' >> "$(CONFIG)"; }
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endef
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# these two take two args
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# add() just appends an additive rule...
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add = $(and $(1),$(2),$(add_body))
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define add_body
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{ $(log_body); \
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printf '%s += %s\n' '$(1)' '$(2)' >> "$(CONFIG)"; }
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endef
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# ...set() comments out any previous definition
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# and then appends an assigning rule
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set = $(and $(1),$(2),$(set_body))
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define set_body
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{ $(log_body); \
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subst 's|^$(1)[ ]*+*=.*$$|#& # overridden by $@|' "$(CONFIG)"; \
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printf '%s = %s\n' '$(1)' '$(2)' >> "$(CONFIG)"; }
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endef
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# is there a way to set a global make var from a recipe?..
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define log_body
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{ grep -q '^# $@$$' "$(CONFIG)" || printf '# %s\n' '$@' >> "$(CONFIG)"; }
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endef
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tags = $(shell echo "$(1)" | bin/tags2lists)
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