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Rebuild version.o when version.c or LAST_VERSION change

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$(TOPDIR)/LAST_VERSION is a cached copy of common.mk's I3_VERSION var,
updated only if the two differ.
This commit is contained in:
Deiz
2015-04-07 13:27:35 -04:00
parent cd4bc2adf5
commit 5a987cfd6b
3 changed files with 12 additions and 1 deletions
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6
Makefile
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@ -22,6 +22,12 @@ include i3-dump-log/i3-dump-log.mk
include docs/docs.mk
include man/man.mk
# Update $(TOPDIR)/LAST_VERSION if it differs from $I3_VERSION
CACHED_VERSION := '$(shell [ -f $(TOPDIR)/LAST_VERSION ] && cat $(TOPDIR)/LAST_VERSION)'
ifneq ($(CACHED_VERSION),$(I3_VERSION))
$(shell echo -n ${I3_VERSION} > $(TOPDIR)/LAST_VERSION)
endif
real-all: $(ALL_TARGETS)
install: $(INSTALL_TARGETS)