patch 8.2.4815: cannot build with older GTK version

Problem:    Cannot build with older GTK version.
Solution:   Use gtk_window_get_size() instead of gdk_window_get_width() and
            gdk_window_get_height(). (Ernie Rael, closes #10257)

src/gui_gtk_x11.c

@@ -396,6 +396,9 @@ static int using_gnome = 0;
 # define using_gnome 0
 #endif
 
+// Comment out the following line to ignore code for resize history tracking.
+#define TRACK_RESIZE_HISTORY
+#ifdef TRACK_RESIZE_HISTORY
 /*
  * Keep a short term resize history so that stale gtk responses can be
  * discarded.
@@ -403,11 +406,11 @@ static int using_gnome = 0;
  * the request is saved. Recent stale requests are kept around in a list.
  * See https://github.com/vim/vim/issues/10123
  */
-#if 0  // Change to 1 to enable ch_log() calls for debugging.
+# if 0  // Change to 1 to enable ch_log() calls for debugging.
 #  ifdef FEAT_JOB_CHANNEL
 #   define ENABLE_RESIZE_HISTORY_LOG
 #  endif
-#endif
+# endif
 
 /*
  * History item of a resize request.
@@ -417,9 +420,9 @@ typedef struct resize_history {
     int used;	    // If true, can't match for discard. Only matches once.
     int width;
     int height;
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
     int seq;	    // for ch_log messages
-#endif
+# endif
     struct resize_history *next;
 } resize_hist_T;
 
@@ -448,11 +451,11 @@ alloc_resize_hist(int width, int height)
     prev_hist->next = old_resize_hists;
     old_resize_hists = prev_hist;
 
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
     new_hist->seq = prev_hist->seq + 1;
     ch_log(NULL, "gui_gtk: New resize seq %d (%d, %d) [%d, %d]",
 	   new_hist->seq, width, height, (int)Columns, (int)Rows);
-#endif
+# endif
 }
 
 /*
@@ -462,9 +465,9 @@ alloc_resize_hist(int width, int height)
     static void
 clear_resize_hists()
 {
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
     int		    i = 0;
-#endif
+# endif
 
     if (latest_resize_hist)
 	latest_resize_hist->used = TRUE;
@@ -474,17 +477,17 @@ clear_resize_hists()
 
 	vim_free(old_resize_hists);
 	old_resize_hists = next_hist;
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
 	i++;
-#endif
+# endif
     }
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
     ch_log(NULL, "gui_gtk: free %d hists", i);
-#endif
+# endif
 }
 
 // true if hist item is unused and matches w,h
-#define MATCH_WIDTH_HEIGHT(hist, w, h) \
+# define MATCH_WIDTH_HEIGHT(hist, w, h) \
 	  (!hist->used && hist->width == w && hist->height == h)
 
 /*
@@ -501,23 +504,24 @@ match_stale_width_height(int width, int height)
     for (hist = old_resize_hists; hist != NULL; hist = hist->next)
 	if (MATCH_WIDTH_HEIGHT(hist, width, height))
 	{
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
 	    ch_log(NULL, "gui_gtk: discard seq %d, cur seq %d",
 		   hist->seq, latest_resize_hist->seq);
-#endif
+# endif
 	    hist->used = TRUE;
 	    return TRUE;
 	}
     return FALSE;
 }
 
-#if defined(EXITFREE)
+# if defined(EXITFREE)
     static void
 free_all_resize_hist()
 {
     clear_resize_hists();
     vim_free(latest_resize_hist);
 }
+# endif
 #endif
 
 /*
@@ -717,7 +721,9 @@ gui_mch_free_all(void)
 #if defined(USE_GNOME_SESSION)
     vim_free(abs_restart_command);
 #endif
+#ifdef TRACK_RESIZE_HISTORY
     free_all_resize_hist();
+#endif
 }
 #endif
 
@@ -4132,25 +4138,25 @@ form_configure_event(GtkWidget *widget UNUSED,
 		     gpointer data UNUSED)
 {
     int	    usable_height = event->height;
-    // Resize requests are made for gui.mainwin,
+#ifdef TRACK_RESIZE_HISTORY
-    // get it's dimensions for searching if this event
+    // Resize requests are made for gui.mainwin;
+    // get its dimensions for searching if this event
     // is a response to a vim request.
-    GdkWindow	*win = gtk_widget_get_window(gui.mainwin);
+    int	    w, h;
-    int		w = gdk_window_get_width(win);
+    gtk_window_get_size(GTK_WINDOW(gui.mainwin), &w, &h);
-    int		h = gdk_window_get_height(win);
 
-#ifdef ENABLE_RESIZE_HISTORY_LOG
+# ifdef ENABLE_RESIZE_HISTORY_LOG
     ch_log(NULL, "gui_gtk: form_configure_event: (%d, %d) [%d, %d]",
 	   w, h, (int)Columns, (int)Rows);
-#endif
+# endif
 
-    // Look through history of recent vim resize reqeusts.
+    // Look through history of recent vim resize requests.
     // If this event matches:
     //	    - "latest resize hist" We're caught up;
     //		clear the history and process this event.
     //		If history is, old to new, 100, 99, 100, 99. If this event is
     //		99 for the stale, it is matched against the current. History
-    //		is cleared, we my bounce, but no worse than before.
+    //		is cleared, we may bounce, but no worse than before.
     //	    - "older/stale hist" If match an unused event in history,
     //		then discard this event, and mark the matching event as used.
     //	    - "no match" Figure it's a user resize event, clear history.
@@ -4161,6 +4167,7 @@ form_configure_event(GtkWidget *widget UNUSED,
 	// discard stale event
 	return TRUE;
     clear_resize_hists();
+#endif
 
 #if GTK_CHECK_VERSION(3,22,2) && !GTK_CHECK_VERSION(3,22,4)
     // As of 3.22.2, GdkWindows have started distributing configure events to
@@ -4483,7 +4490,9 @@ gui_mch_open(void)
      * manager upon us and should not interfere with what VIM is requesting
      * upon startup.
      */
+#ifdef TRACK_RESIZE_HISTORY
     latest_resize_hist = ALLOC_CLEAR_ONE(resize_hist_T);
+#endif
     g_signal_connect(G_OBJECT(gui.formwin), "configure-event",
 				       G_CALLBACK(form_configure_event), NULL);
 
@@ -4671,7 +4680,9 @@ gui_mch_set_shellsize(int width, int height,
     width  += get_menu_tool_width();
     height += get_menu_tool_height();
 
+#ifdef TRACK_RESIZE_HISTORY
     alloc_resize_hist(width, height); // track the resize request
+#endif
     if (gtk_socket_id == 0)
 	gtk_window_resize(GTK_WINDOW(gui.mainwin), width, height);
     else

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4815,
 /**/
     4814,
 /**/