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lib: don't rebuild libcrucible unless there is a version change

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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>
This commit is contained in:
Zygo Blaxell 2020-10-18 22:06:47 -04:00
parent 03627503ec
commit 0c84302d9a
1 changed files with 1 additions and 1 deletions
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lib/Makefile
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@ -40,7 +40,7 @@ depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
.version.cc: configure.h Makefile ../makeflags $(CRUCIBLE_OBJS:.o=.cc) ../include/crucible/*.h .version.cc: configure.h Makefile ../makeflags $(CRUCIBLE_OBJS:.o=.cc) ../include/crucible/*.h
echo "namespace crucible { const char *VERSION = \"$(TAG)\"; }" > $@.new echo "namespace crucible { const char *VERSION = \"$(TAG)\"; }" > $@.new
mv -f $@.new $@ if ! cmp "$@.new" "$@"; then mv -fv $@.new $@; fi
include depends.mk include depends.mk