extern struct cache_entry **active_cache;
extern unsigned int active_nr, active_alloc, active_cache_changed;
extern struct cache_tree *active_cache_tree;
-extern int cache_errno;
enum object_type {
OBJ_BAD = -1,
extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
extern int remove_cache_entry_at(int pos);
extern int remove_file_from_cache(const char *path);
-extern int add_file_to_index(const char *path, int verbose);
+extern int add_file_to_cache(const char *path, int verbose);
extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
extern int ce_match_stat(struct cache_entry *ce, struct stat *st, int);
extern int ce_modified(struct cache_entry *ce, struct stat *st, int);