2 files changed, 7 insertions, 7 deletions

diff --git a/src/dispextern.h b/src/dispextern.h
index f27279975ac..4acf3362c69 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -3356,9 +3356,7 @@ void x_cr_init_fringe (struct redisplay_interface *);
 
 extern unsigned row_hash (struct glyph_row *);
 
-extern void block_buffer_flips(void);
-extern void unblock_buffer_flips(void);
-extern bool buffer_flipping_blocked_p(void);
+extern bool buffer_flipping_blocked_p (void);
 
 /* Defined in image.c */
 
diff --git a/src/xdisp.c b/src/xdisp.c
index 1420a4a7e36..2acdfa90b7a 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -818,6 +818,8 @@ static void iterate_out_of_display_property (struct it *);
 static void pop_it (struct it *);
 static void redisplay_internal (void);
 static void echo_area_display (bool);
+static void block_buffer_flips (void);
+static void unblock_buffer_flips (void);
 static void redisplay_windows (Lisp_Object);
 static void redisplay_window (Lisp_Object, bool);
 static Lisp_Object redisplay_window_error (Lisp_Object);
@@ -14477,15 +14479,15 @@ disp_char_vector (struct Lisp_Char_Table *dp, int c)
 
 static int buffer_flip_blocked_depth;
 
-void
-block_buffer_flips(void)
+static void
+block_buffer_flips (void)
 {
   eassert (buffer_flip_blocked_depth >= 0);
   buffer_flip_blocked_depth++;
 }
 
-void
-unblock_buffer_flips(void)
+static void
+unblock_buffer_flips (void)
 {
   eassert (buffer_flip_blocked_depth > 0);
   if (--buffer_flip_blocked_depth == 0)