1 files changed, 2 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 98a742122d..99af83a047 100644
--- a/cache.h
+++ b/cache.h
@@ -641,6 +641,8 @@ extern struct alternate_object_database {
 } *alt_odb_list;
 extern void prepare_alt_odb(void);
 extern void add_to_alternates_file(const char *reference);
+typedef int alt_odb_fn(struct alternate_object_database *, void *);
+extern void foreach_alt_odb(alt_odb_fn, void*);
 
 struct pack_window {
 	struct pack_window *next;