1 files changed, 7 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 79066e57dc..d801429e0c 100644
--- a/cache.h
+++ b/cache.h
@@ -696,8 +696,15 @@ extern char *notes_ref_name;
 
 extern int grafts_replace_parents;
 
+/*
+ * GIT_REPO_VERSION is the version we write by default. The
+ * _READ variant is the highest number we know how to
+ * handle.
+ */
 #define GIT_REPO_VERSION 0
+#define GIT_REPO_VERSION_READ 1
 extern int repository_format_version;
+extern int repository_format_precious_objects;
 extern int check_repository_format(void);
 
 #define MTIME_CHANGED	0x0001