2 files changed, 4 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index b8ab24a7121..db115bdbfd7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,7 @@
 2011-03-18  Paul Eggert  <eggert@cs.ucla.edu>
 
+        * region-cache.h (pp_cache): New decl, for gcc -Wmissing-prototypes.
+
         * callproc.c (Fcall_process): Use 'volatile' to avoid vfork clobbering.
         * sysdep.c (sys_subshell): Likewise.
         Previously, the sys_subshell 'volatile' was incorrectly IF_LINTted out.
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 *);