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0c84302d9a
If we create an identical .version.cc then don't bother keeping it. This prevents libcrucible from rebuilding if there are no other changes, which in turn prevents all the binaries from rebuilding unconditionally. Signed-off-by: Zygo Blaxell <bees@furryterror.org>
52 lines
986 B
Makefile
52 lines
986 B
Makefile
TAG ?= $(shell git describe --always --dirty || echo UNKNOWN)
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default: libcrucible.a
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%.a: Makefile
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CRUCIBLE_OBJS = \
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chatter.o \
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city.o \
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cleanup.o \
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crc64.o \
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error.o \
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extentwalker.o \
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fd.o \
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fs.o \
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ntoa.o \
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path.o \
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process.o \
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string.o \
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task.o \
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time.o \
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uuid.o \
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include ../makeflags
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include ../Defines.mk
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BEES_LDFLAGS = $(LDFLAGS)
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configure.h: configure.h.in
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$(TEMPLATE_COMPILER)
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.depends:
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mkdir -p $@
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.depends/%.dep: %.cc configure.h Makefile | .depends
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$(CXX) $(BEES_CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
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depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
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cat $^ > $@.new
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mv -f $@.new $@
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.version.cc: configure.h Makefile ../makeflags $(CRUCIBLE_OBJS:.o=.cc) ../include/crucible/*.h
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echo "namespace crucible { const char *VERSION = \"$(TAG)\"; }" > $@.new
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if ! cmp "$@.new" "$@"; then mv -fv $@.new $@; fi
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include depends.mk
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%.o: %.cc ../makeflags
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$(CXX) $(BEES_CXXFLAGS) -o $@ -c $<
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libcrucible.a: $(CRUCIBLE_OBJS) .version.o
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$(AR) rcs $@ $^
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