diff-tree: avoid lookup_unknown_object

diff --git a/cache.h b/cache.h
index df65231ac3db7ae08b5d9cfd37c505c4573c1675..42a5e865b588d39836a04b8a022e53ae8ce76d5d 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1376,6 +1376,7 @@ extern void *alloc_commit_node(void);
 extern void *alloc_tag_node(void);
 extern void *alloc_object_node(void);
 extern void alloc_report(void);
+extern unsigned int alloc_commit_index(void);
 
 /* trace.c */
 __attribute__((format (printf, 1, 2)))