diff --git a/libgimp/gimpbrushselectbutton.c b/libgimp/gimpbrushselectbutton.c
index 770aced60e..4743407dc8 100644
--- a/libgimp/gimpbrushselectbutton.c
+++ b/libgimp/gimpbrushselectbutton.c
@@ -734,20 +734,23 @@ gimp_brush_select_preview_update (GtkWidget    *preview,
                                   const guchar *mask_data)
 {
   GimpPreviewArea *area = GIMP_PREVIEW_AREA (preview);
+  GtkAllocation    allocation;
   gint             x, y;
   gint             width, height;
 
-  width  = MIN (brush_width,  preview->allocation.width);
-  height = MIN (brush_height, preview->allocation.height);
+  gtk_widget_get_allocation (preview, &allocation);
 
-  x = ((preview->allocation.width  - width)  / 2);
-  y = ((preview->allocation.height - height) / 2);
+  width  = MIN (brush_width,  allocation.width);
+  height = MIN (brush_height, allocation.height);
+
+  x = ((allocation.width  - width)  / 2);
+  y = ((allocation.height - height) / 2);
 
   if (x || y)
     gimp_preview_area_fill (area,
                             0, 0,
-                            preview->allocation.width,
-                            preview->allocation.height,
+                            allocation.width,
+                            allocation.height,
                             0xFF, 0xFF, 0xFF);
 
   gimp_brush_select_preview_draw (area,
diff --git a/libgimp/gimpgradientselectbutton.c b/libgimp/gimpgradientselectbutton.c
index e8750b3650..3c8d439499 100644
--- a/libgimp/gimpgradientselectbutton.c
+++ b/libgimp/gimpgradientselectbutton.c
@@ -531,7 +531,7 @@ gimp_gradient_select_preview_expose (GtkWidget                *widget,
       guchar   *buf   = ((y / GIMP_CHECK_SIZE_SM) & 1) ? odd : even;
 
       gdk_draw_rgb_image_dithalign (gtk_widget_get_window (widget),
-                                    style->fg_gc[widget->state],
+                                    style->fg_gc[gtk_widget_get_state (widget)],
                                     event->area.x, y,
                                     event->area.width, 1,
                                     GDK_RGB_DITHER_MAX,
diff --git a/libgimp/gimpprogressbar.c b/libgimp/gimpprogressbar.c
index b9b88897f5..2e409a422e 100644
--- a/libgimp/gimpprogressbar.c
+++ b/libgimp/gimpprogressbar.c
@@ -21,6 +21,8 @@
 
 #include "config.h"
 
+#undef GSEAL_ENABLE
+
 #include <gtk/gtk.h>
 
 #ifdef GDK_WINDOWING_WIN32
@@ -107,7 +109,7 @@ gimp_progress_bar_start (const gchar *message,
   gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), message ? message : " ");
   gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), 0.0);
 
-  if (GTK_WIDGET_DRAWABLE (bar))
+  if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
     while (gtk_events_pending ())
       gtk_main_iteration ();
 }
@@ -120,7 +122,7 @@ gimp_progress_bar_end (gpointer user_data)
   gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), " ");
   gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (bar), 0.0);
 
-  if (GTK_WIDGET_DRAWABLE (bar))
+  if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
     while (gtk_events_pending ())
       gtk_main_iteration ();
 }
@@ -133,7 +135,7 @@ gimp_progress_bar_set_text (const gchar *message,
 
   gtk_progress_bar_set_text (GTK_PROGRESS_BAR (bar), message ? message : " ");
 
-  if (GTK_WIDGET_DRAWABLE (bar))
+  if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
     while (gtk_events_pending ())
       gtk_main_iteration ();
 }
@@ -149,7 +151,7 @@ gimp_progress_bar_set_value (gdouble  percentage,
   else
     gtk_progress_bar_pulse (GTK_PROGRESS_BAR (bar));
 
-  if (GTK_WIDGET_DRAWABLE (bar))
+  if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
     while (gtk_events_pending ())
       gtk_main_iteration ();
 }
@@ -161,7 +163,7 @@ gimp_progress_bar_pulse (gpointer user_data)
 
   gtk_progress_bar_pulse (GTK_PROGRESS_BAR (bar));
 
-  if (GTK_WIDGET_DRAWABLE (bar))
+  if (gtk_widget_is_drawable (GTK_WIDGET (bar)))
     while (gtk_events_pending ())
       gtk_main_iteration ();
 }
@@ -178,12 +180,12 @@ gimp_window_get_native (GtkWindow *window)
 #endif
 
 #ifdef GDK_WINDOWING_WIN32
-  if (window && GTK_WIDGET_REALIZED (window))
+  if (window && GTK_WIDGET_REALIZED (GTK_WIDGET (window)))
     return GDK_WINDOW_HWND (gtk_widget_get_window (GTK_WIDGET (window)));
 #endif
 
 #ifdef GDK_WINDOWING_X11
-  if (window && GTK_WIDGET_REALIZED (window))
+  if (window && GTK_WIDGET_REALIZED (GTK_WIDGET (window)))
     return GDK_WINDOW_XID (gtk_widget_get_window (GTK_WIDGET (window)));
 #endif
 
diff --git a/libgimp/gimpui.c b/libgimp/gimpui.c
index c3bfe2c963..874cdde336 100644
--- a/libgimp/gimpui.c
+++ b/libgimp/gimpui.c
@@ -18,6 +18,8 @@
 
 #include "config.h"
 
+#undef GSEAL_ENABLE
+
 #include <gtk/gtk.h>
 
 #include "libgimpmodule/gimpmodule.h"
@@ -290,7 +292,7 @@ gimp_window_set_transient_for (GtkWindow *window,
   if (! parent)
     return;
 
-  if (GTK_WIDGET_REALIZED (window))
+  if (GTK_WIDGET_REALIZED (GTK_WIDGET (window)))
     gdk_window_set_transient_for (gtk_widget_get_window (GTK_WIDGET (window)),
                                   parent);
 
diff --git a/libgimp/gimpzoompreview.c b/libgimp/gimpzoompreview.c
index 715eb62037..1a9aebd5fb 100644
--- a/libgimp/gimpzoompreview.c
+++ b/libgimp/gimpzoompreview.c
@@ -21,6 +21,8 @@
 
 #include "config.h"
 
+#undef GSEAL_ENABLE
+
 #include <gtk/gtk.h>
 
 #include "libgimpwidgets/gimpwidgets.h"