1 files changed, 2 insertions, 0 deletions
diff --git a/advice.h b/advice.h
index bd26c385d0..a7227ca703 100644
--- a/advice.h
+++ b/advice.h
@@ -90,11 +90,13 @@ int advice_enabled(enum advice_type type);
 /**
  * Checks the visibility of the advice before printing.
  */
+__attribute__((format (printf, 2, 3)))
 void advise_if_enabled(enum advice_type type, const char *advice, ...);
 
 int error_resolve_conflict(const char *me);
 void NORETURN die_resolve_conflict(const char *me);
 void NORETURN die_conclude_merge(void);
+void NORETURN die_ff_impossible(void);
 void advise_on_updating_sparse_paths(struct string_list *pathspec_list);
 void detach_advice(const char *new_name);