extern int split_mbox(const char **mbox, const char *dir, int allow_bare, int nr_prec, int skip);
extern void stripspace(FILE *in, FILE *out);
extern int write_tree(unsigned char *sha1, int missing_ok, const char *prefix);
+extern void prune_packed_objects(int);
extern int cmd_add(int argc, const char **argv, const char *prefix);
extern int cmd_apply(int argc, const char **argv, const char *prefix);
extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
extern int cmd_tar_tree(int argc, const char **argv, const char *prefix);
-extern int cmd_zip_tree(int argc, const char **argv, const char *prefix);
extern int cmd_unpack_objects(int argc, const char **argv, const char *prefix);
extern int cmd_update_index(int argc, const char **argv, const char *prefix);
extern int cmd_update_ref(int argc, const char **argv, const char *prefix);