extern int only_use_symrefs;
extern int diff_rename_limit_default;
+#define GIT_REPO_VERSION 0
+extern int repository_format_version;
+extern int check_repository_format(void);
+
#define MTIME_CHANGED 0x0001
#define CTIME_CHANGED 0x0002
#define OWNER_CHANGED 0x0004
extern int git_config_bool(const char *, const char *);
extern int git_config_set(const char *, const char *);
extern int git_config_set_multivar(const char *, const char *, const char *, int);
+extern int check_repository_format_version(const char *var, const char *value);
#define MAX_GITNAME (1000)
extern char git_default_email[MAX_GITNAME];