[PATCH] Makefile: rebuild git.o on version change, clean up git$X flags

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Commit 334d28ae factored out git.o as an intermediate stage between
git.c and git$X.  However:

- It left some no-longer-relevant flags in the rule for git$X.

- It failed to replace git$X with git.o in the list of files that
  record GIT_VERSION.  This broke incorporation of a changed
  GIT_VERSION into git$X because, when GIT_VERSION changes, git.o isn't
  remade and git$X is relinked from the git.o that still contains the
  old GIT_VERSION.

This patch removes the irrelevant flags and fixes incorporation of a
changed GIT_VERSION into git$X.

Signed-off-by: Matt McCutchen <hashproduct@xxxxxxxxx>
---
Amusingly, I found this because, when I formatted my previous patch for
submission, I noticed that the "-dirty" in the version at the bottom
wouldn't go away even though I had committed my changes to my
git-development repository.  (I was actually using the git tools from
that repository.)

 Makefile |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 5b30e5c..d7541b4 100644
--- a/Makefile
+++ b/Makefile
@@ -753,8 +753,7 @@ git.o: git.c common-cmds.h GIT-CFLAGS
 		$(ALL_CFLAGS) -c $(filter %.c,$^)
 
 git$X: git.o $(BUILTIN_OBJS) $(GITLIBS)
-	$(QUIET_LINK)$(CC) -DGIT_VERSION='"$(GIT_VERSION)"' \
-		$(ALL_CFLAGS) -o $@ $(filter %.c,$^) git.o \
+	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ git.o \
 		$(BUILTIN_OBJS) $(ALL_LDFLAGS) $(LIBS)
 
 help.o: common-cmds.h
@@ -857,7 +856,7 @@ configure: configure.ac
 	rm -f $<+
 
 # These can record GIT_VERSION
-git$X git.spec \
+git.o git.spec \
 	$(patsubst %.sh,%,$(SCRIPT_SH)) \
 	$(patsubst %.perl,%,$(SCRIPT_PERL)) \
 	: GIT-VERSION-FILE
-- 
1.5.3.rc0.83.gb18a6

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