1 files changed, 2 insertions, 0 deletions

diff --git a/src/region-cache.h b/src/region-cache.h
index 0da159285e4..8e4336c2885 100644
--- a/src/region-cache.h
+++ b/src/region-cache.h
@@ -111,3 +111,5 @@ extern int region_cache_backward (struct buffer *BUF,
                                   EMACS_INT POS,
                                   EMACS_INT *NEXT);
 
+/* For debugging.  */
+void pp_cache (struct region_cache *);