Fix build with GTK 3.18.0 or earlier

* src/gtkutil.c (xg_update_scroll_bar_pos)
(xg_update_horizontal_scrollbar_pos): Avoid
gtk_widget_queue_allocate on older GTK versions.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gtkutil.c b/src/gtkutil.c
index 174a1bffeae..ec2864e34a7 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -4736,7 +4736,9 @@ xg_update_scrollbar_pos (struct frame *f,
           if (wdesc)
             {
               gdk_window_move_resize (wdesc, left, top, width, height);
+#if GTK_CHECK_VERSION (3, 20, 0)
               gtk_widget_queue_allocate (wparent);
+#endif
             }
 #endif
         }
@@ -4841,7 +4843,9 @@ xg_update_horizontal_scrollbar_pos (struct frame *f,
           if (wdesc)
             {
               gdk_window_move_resize (wdesc, left, top, width, height);
+#if GTK_CHECK_VERSION (3, 20, 0)
               gtk_widget_queue_allocate (wparent);
+#endif
             }
 #endif
         }