} *alt_odb_list;
extern void prepare_alt_odb(void);
extern void read_info_alternates(const char * relative_base, int depth);
+extern char *compute_alternate_path(const char *path, struct strbuf *err);
extern void add_to_alternates_file(const char *reference);
typedef int alt_odb_fn(struct alternate_object_database *, void *);
extern int foreach_alt_odb(alt_odb_fn, void*);