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ssh://git.janware.com/srv/git/janware/proj/jw-pkg
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22 lines
637 B
Makefile
22 lines
637 B
Makefile
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# ----- define these variables
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# CACHED_FILES = $(TOPDIR)/VERSION
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# CACHED_VARS = VERSION
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CACHE_FILE_MK ?= .cache.mk
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# if not checked against MAKECMDGOALS, a standard rule kicks in from rules.mk,
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# and $(CACHE_FILE_MK) is remade with the clean target
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ifeq ($(findstring clean,$(MAKECMDGOALS)),)
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all: $(CACHE_FILE_MK)
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$(CACHE_FILE_MK): $(CACHED_FILES) $(MODDIR)/make/cache.mk
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ifeq ($(wildcard $(CACHE_FILE_MK)),)
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@echo $(foreach v,$(CACHED_VARS),$v := $(value $(v))EOL) | $(SED) 's/EOL */\n/g;' | $(GREP) . | tee $@.tmp
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mv $@.tmp $@
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else
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rm $@
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make $@
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endif
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endif
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clean: clean-cache
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clean-cache:
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$(RM) -f $(CACHE_FILE_MK)
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