mirror of
ssh://git.janware.com/srv/git/janware/proj/jw-pkg
synced 2026-01-15 12:03:31 +01:00
Jan Lindemann
3dd55cf067
This commit tries to remove the necessity to call projects.py from $(TOPDIR) to speed up recursive builds over all projects yet again. This is a major undertaking. There are two variables which are filled py projects.py in $(TOPDIR): PREREQ and PREREQ_DIRS. Sadly, the latter is a path relative to $(TOPDIR)/make, so this is kind of pointless. Unless the cache is maintained in $(TOPDIR), a thing I tried to avoid. So this commit is only able to cache $(PREREQ), not $(PREREQ_DIRS), which still is a hassle. Introduced defs-dirs.mk for that, to make it accessible to make.mk, and modified all the other parts of the machinery, too. Signed-off-by: Jan Lindemann <jan@janware.com>
24 lines
687 B
Makefile
24 lines
687 B
Makefile
# ----- define these variables
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# CACHED_FILES = $(TOPDIR)/VERSION
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# CACHED_VARS = VERSION
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.PHONY: cache
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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 $(CACHE_FILE_MK) is remade with the clean target
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all: cache
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ifneq ($(foreach g,all cache,$(findstring $(g),$(MAKECMDGOALS))),)
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cache: $(CACHE_FILE_MK)
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$(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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