diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 188984ee802..e36b54f226a 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2019-09-20  Tom Tromey  <tom@tromey.com>
+
+	* tui/tui.c (tui_enable): Update.
+	* tui/tui-win.c (tui_sigwinch_handler, tui_async_resize_screen):
+	Update.
+	* tui/tui-data.h (tui_win_resized, tui_set_win_resized_to):
+	Update.
+	* tui/tui-data.c (win_resized): Now bool.
+	(tui_win_resized): Return bool.
+	(tui_set_win_resized_to): Accept a bool.
+
 2019-09-20  Tom Tromey  <tom@tromey.com>
 
 	* tui/tui-regs.h (struct tui_data_window) <show_register_group>:
diff --git a/gdb/tui/tui-data.c b/gdb/tui/tui-data.c
index 833ea49a951..c14b1711f60 100644
--- a/gdb/tui/tui-data.c
+++ b/gdb/tui/tui-data.c
@@ -38,7 +38,7 @@ struct tui_win_info *tui_win_list[MAX_MAJOR_WINDOWS];
 static int term_height, term_width;
 static struct tui_win_info *win_with_focus = NULL;
 
-static int win_resized = FALSE;
+static bool win_resized = false;
 
 
 /*********************************
@@ -56,8 +56,8 @@ tui_win_is_auxiliary (enum tui_win_type win_type)
 ******************************************/
 
 /* Answer a whether the terminal window has been resized or not.  */
-int
-tui_win_resized (void)
+bool
+tui_win_resized ()
 {
   return win_resized;
 }
@@ -65,7 +65,7 @@ tui_win_resized (void)
 
 /* Set a whether the terminal window has been resized or not.  */
 void
-tui_set_win_resized_to (int resized)
+tui_set_win_resized_to (bool resized)
 {
   win_resized = resized;
 }
diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index be819503cf2..264652361ef 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -297,8 +297,8 @@ extern void tui_set_term_width_to (int);
 extern struct tui_locator_window *tui_locator_win_info_ptr (void);
 extern struct tui_win_info *tui_win_with_focus (void);
 extern void tui_set_win_with_focus (struct tui_win_info *);
-extern int tui_win_resized (void);
-extern void tui_set_win_resized_to (int);
+extern bool tui_win_resized ();
+extern void tui_set_win_resized_to (bool);
 
 extern struct tui_win_info *tui_next_win (struct tui_win_info *);
 extern struct tui_win_info *tui_prev_win (struct tui_win_info *);
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index bf84cdac442..d07a777360f 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -664,7 +664,7 @@ static void
 tui_sigwinch_handler (int signal)
 {
   mark_async_signal_handler (tui_sigwinch_token);
-  tui_set_win_resized_to (TRUE);
+  tui_set_win_resized_to (true);
 }
 
 /* Callback for asynchronously resizing TUI following a SIGWINCH signal.  */
@@ -685,7 +685,7 @@ tui_async_resize_screen (gdb_client_data arg)
     }
   else
     {
-      tui_set_win_resized_to (FALSE);
+      tui_set_win_resized_to (false);
       tui_resize_all ();
       tui_refresh_all_win ();
       tui_update_gdb_sizes ();
diff --git a/gdb/tui/tui.c b/gdb/tui/tui.c
index 5d6b9f32036..966304f3408 100644
--- a/gdb/tui/tui.c
+++ b/gdb/tui/tui.c
@@ -504,7 +504,7 @@ tui_enable (void)
      window.  */
   if (tui_win_resized ())
     {
-      tui_set_win_resized_to (FALSE);
+      tui_set_win_resized_to (false);
       tui_resize_all ();
     }