submodule: try harder to fetch needed sha1 by direct fetching sha1

diff --git a/Makefile b/Makefile
index bce79a19383e9ecd6aad4ba3a9642601c5a01c5b..fd19b544c21ac4648adb8e86421ec5a8632dc0fb 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -772,6 +772,7 @@ LIB_OBJS += reachable.o
 LIB_OBJS += read-cache.o
 LIB_OBJS += reflog-walk.o
 LIB_OBJS += refs.o
+LIB_OBJS += refs/files-backend.o
 LIB_OBJS += ref-filter.o
 LIB_OBJS += remote.o
 LIB_OBJS += replace_object.o
@@ -2432,7 +2433,7 @@ profile-clean:
        $(RM) $(addsuffix *.gcno,$(addprefix $(PROFILE_DIR)/, $(object_dirs)))
 
 clean: profile-clean coverage-clean
-       $(RM) *.o *.res block-sha1/*.o ppc/*.o compat/*.o compat/*/*.o
+       $(RM) *.o *.res refs/*.o block-sha1/*.o ppc/*.o compat/*.o compat/*/*.o
        $(RM) xdiff/*.o vcs-svn/*.o ewah/*.o builtin/*.o
        $(RM) $(LIB_FILE) $(XDIFF_LIB) $(VCSSVN_LIB)
        $(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X