diff --git a/gtk/gtkbuilder.c b/gtk/gtkbuilder.c
index 323a3e0915..1bf770f760 100644
--- a/gtk/gtkbuilder.c
+++ b/gtk/gtkbuilder.c
@@ -752,7 +752,7 @@ _gtk_builder_construct (GtkBuilder  *builder,
         g_object_set_property (obj, param->name, &param->value);
 
 #if G_ENABLE_DEBUG
-      if (gtk_get_debug_flags () & GTK_DEBUG_BUILDER)
+      if (GTK_DEBUG_CHECK (BUILDER))
         {
           gchar *str = g_strdup_value_contents ((const GValue*)&param->value);
           g_print ("set %s: %s = %s\n", info->id, param->name, str);
@@ -816,7 +816,7 @@ _gtk_builder_apply_properties (GtkBuilder  *builder,
         g_object_set_property (info->object, param->name, &param->value);
 
 #if G_ENABLE_DEBUG
-      if (gtk_get_debug_flags () & GTK_DEBUG_BUILDER)
+      if (GTK_DEBUG_CHECK (BUILDER))
         {
           gchar *str = g_strdup_value_contents ((const GValue*)&param->value);
           g_print ("set %s: %s = %s\n", info->id, param->name, str);
diff --git a/gtk/gtkbuilderparser.c b/gtk/gtkbuilderparser.c
index 49c04d25f3..7346b3a007 100644
--- a/gtk/gtkbuilderparser.c
+++ b/gtk/gtkbuilderparser.c
@@ -926,7 +926,7 @@ start_element (GMarkupParseContext  *context,
   ParserData *data = (ParserData*)user_data;
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_BUILDER)
+  if (GTK_DEBUG_CHECK (BUILDER))
     {
       GString *tags = g_string_new ("");
       int i;
diff --git a/gtk/gtkcssnode.c b/gtk/gtkcssnode.c
index 3cc7e16188..671613f230 100644
--- a/gtk/gtkcssnode.c
+++ b/gtk/gtkcssnode.c
@@ -1265,8 +1265,10 @@ gtk_css_node_validate_internal (GtkCssNode *cssnode,
    * Note that this also completely revalidates child widgets all
    * the time.
    */
-  if (G_UNLIKELY (gtk_get_debug_flags () & GTK_DEBUG_NO_CSS_CACHE))
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (NO_CSS_CACHE))
     cssnode->pending_changes |= GTK_CSS_CHANGE_ANY;
+#endif
 
   if (!cssnode->invalid)
     return;
diff --git a/gtk/gtkdebug.h b/gtk/gtkdebug.h
index e7ae8ae8b2..40d42d797a 100644
--- a/gtk/gtkdebug.h
+++ b/gtk/gtkdebug.h
@@ -59,12 +59,15 @@ typedef enum {
 
 #ifdef G_ENABLE_DEBUG
 
-#define GTK_NOTE(type,action)                G_STMT_START { \
-    if (gtk_get_debug_flags () & GTK_DEBUG_##type)		    \
+#define GTK_DEBUG_CHECK(type) G_UNLIKELY (gtk_get_debug_flags () & GTK_DEBUG_##type)
+
+#define GTK_NOTE(type,action)                G_STMT_START {     \
+    if (GTK_DEBUG_CHECK (type))		                        \
        { action; };                          } G_STMT_END
 
 #else /* !G_ENABLE_DEBUG */
 
+#define GTK_DEBUG_CHECK(type) 0
 #define GTK_NOTE(type, action)
 
 #endif /* G_ENABLE_DEBUG */
diff --git a/gtk/gtkiconcache.c b/gtk/gtkiconcache.c
index ac6035283d..3102003041 100644
--- a/gtk/gtkiconcache.c
+++ b/gtk/gtkiconcache.c
@@ -122,8 +122,7 @@ _gtk_icon_cache_new_for_path (const gchar *path)
   /* Verify cache is uptodate */
   if (st.st_mtime < path_st.st_mtime)
     {
-      GTK_NOTE (ICONTHEME, 
-		g_print ("cache outdated\n"));
+      GTK_NOTE (ICONTHEME, g_print ("cache outdated\n"));
       goto done; 
     }
 
@@ -133,7 +132,7 @@ _gtk_icon_cache_new_for_path (const gchar *path)
     goto done;
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_ICONTHEME)
+  if (GTK_DEBUG_CHECK (ICONTHEME))
     {
       CacheInfo info;
 
diff --git a/gtk/gtkpixelcache.c b/gtk/gtkpixelcache.c
index a6a85cbb87..2c0873e7a2 100644
--- a/gtk/gtkpixelcache.c
+++ b/gtk/gtkpixelcache.c
@@ -185,7 +185,7 @@ _gtk_pixel_cache_create_surface_if_needed (GtkPixelCache         *cache,
   double red, green, blue, alpha;
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_NO_PIXEL_CACHE)
+  if (GTK_DEBUG_CHECK (NO_PIXEL_CACHE))
     return;
 #endif
 
@@ -363,7 +363,7 @@ _gtk_pixel_cache_repaint (GtkPixelCache         *cache,
       cairo_restore (backing_cr);
 
 #ifdef G_ENABLE_DEBUG
-      if (gtk_get_debug_flags () & GTK_DEBUG_PIXEL_CACHE)
+      if (GTK_DEBUG_CHECK (PIXEL_CACHE))
         {
           GdkRGBA colors[] = {
             { 1, 0, 0, 0.08},
diff --git a/gtk/gtkprintjob.c b/gtk/gtkprintjob.c
index baae02f82b..71a09f51b2 100644
--- a/gtk/gtkprintjob.c
+++ b/gtk/gtkprintjob.c
@@ -489,9 +489,10 @@ gtk_print_job_get_surface (GtkPrintJob  *job,
 
   fchmod (fd, S_IRUSR | S_IWUSR);
   
-#ifdef G_ENABLE_DEBUG 
+#ifdef G_ENABLE_DEBUG
   /* If we are debugging printing don't delete the tmp files */
-  if (!(gtk_get_debug_flags () & GTK_DEBUG_PRINTING))
+  if (GTK_DEBUG_CHECK (PRINTING)) ;
+  else
 #endif /* G_ENABLE_DEBUG */
   g_unlink (filename);
   g_free (filename);
diff --git a/gtk/gtkrbtree.c b/gtk/gtkrbtree.c
index d3e1fef7a6..2699a34bcd 100644
--- a/gtk/gtkrbtree.c
+++ b/gtk/gtkrbtree.c
@@ -35,7 +35,7 @@ static inline void _fixup_validation              (GtkRBTree  *tree,
 						   GtkRBNode  *node);
 static inline void _fixup_total_count             (GtkRBTree  *tree,
 						   GtkRBNode  *node);
-#ifdef G_ENABLE_DEBUG  
+#ifdef G_ENABLE_DEBUG
 static void        _gtk_rbtree_test               (const gchar *where,
                                                    GtkRBTree  *tree);
 static void        _gtk_rbtree_debug_spew         (GtkRBTree  *tree);
@@ -74,7 +74,7 @@ static void
 _gtk_rbnode_free (GtkRBNode *node)
 {
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+  if (GTK_DEBUG_CHECK (TREE))
     {
       node->left = (gpointer) 0xdeadbeef;
       node->right = (gpointer) 0xdeadbeef;
@@ -391,10 +391,10 @@ gtk_rbnode_adjust (GtkRBTree *tree,
 void
 _gtk_rbtree_remove (GtkRBTree *tree)
 {
-#ifdef G_ENABLE_DEBUG  
+#ifdef G_ENABLE_DEBUG
   GtkRBTree *tmp_tree;
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+  if (GTK_DEBUG_CHECK (TREE))
     _gtk_rbtree_test (G_STRLOC, tree);
 #endif
   
@@ -408,14 +408,14 @@ _gtk_rbtree_remove (GtkRBTree *tree)
                      - (int) tree->root->total_count,
                      - tree->root->offset);
 
-#ifdef G_ENABLE_DEBUG  
+#ifdef G_ENABLE_DEBUG
   tmp_tree = tree->parent_tree;
 #endif
 
   _gtk_rbtree_free (tree);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     _gtk_rbtree_test (G_STRLOC, tmp_tree);
 #endif
 }
@@ -430,14 +430,14 @@ _gtk_rbtree_insert_after (GtkRBTree *tree,
   GtkRBNode *node;
   gboolean right = TRUE;
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("\n\n_gtk_rbtree_insert_after: %p\n", current);
       _gtk_rbtree_debug_spew (tree);
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */  
+#endif
 
   if (current != NULL && !_gtk_rbtree_is_nil (current->right))
     {
@@ -475,15 +475,15 @@ _gtk_rbtree_insert_after (GtkRBTree *tree,
 
   _gtk_rbtree_insert_fixup (tree, node);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("_gtk_rbtree_insert_after finished...\n");
       _gtk_rbtree_debug_spew (tree);
       g_print ("\n\n");
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */  
+#endif
 
   return node;
 }
@@ -497,15 +497,15 @@ _gtk_rbtree_insert_before (GtkRBTree *tree,
   GtkRBNode *node;
   gboolean left = TRUE;
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("\n\n_gtk_rbtree_insert_before: %p\n", current);
       _gtk_rbtree_debug_spew (tree);
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */
-  
+#endif
+
   if (current != NULL && !_gtk_rbtree_is_nil (current->left))
     {
       current = current->left;
@@ -543,16 +543,16 @@ _gtk_rbtree_insert_before (GtkRBTree *tree,
 
   _gtk_rbtree_insert_fixup (tree, node);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("_gtk_rbtree_insert_before finished...\n");
       _gtk_rbtree_debug_spew (tree);
       g_print ("\n\n");
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */
-  
+#endif
+
   return node;
 }
 
@@ -590,8 +590,8 @@ _gtk_rbtree_node_set_height (GtkRBTree *tree,
 
   gtk_rbnode_adjust (tree, node, 0, 0, diff);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     _gtk_rbtree_test (G_STRLOC, tree);
 #endif
 }
@@ -1117,21 +1117,21 @@ _gtk_rbtree_remove_node (GtkRBTree *tree,
 
   
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("\n\n_gtk_rbtree_remove_node: %p\n", node);
       _gtk_rbtree_debug_spew (tree);
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */
+#endif
   
   /* make sure we're deleting a node that's actually in the tree */
   for (x = node; !_gtk_rbtree_is_nil (x->parent); x = x->parent)
     ;
   g_return_if_fail (x == tree->root);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     _gtk_rbtree_test (G_STRLOC, tree);
 #endif
   
@@ -1226,15 +1226,15 @@ _gtk_rbtree_remove_node (GtkRBTree *tree,
 
   _gtk_rbnode_free (node);
 
-#ifdef G_ENABLE_DEBUG  
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_print ("_gtk_rbtree_remove_node finished...\n");
       _gtk_rbtree_debug_spew (tree);
       g_print ("\n\n");
       _gtk_rbtree_test (G_STRLOC, tree);
     }
-#endif /* G_ENABLE_DEBUG */  
+#endif
 }
 
 GtkRBNode *
diff --git a/gtk/gtktextbtree.c b/gtk/gtktextbtree.c
index b53e5f0df0..366793d190 100644
--- a/gtk/gtktextbtree.c
+++ b/gtk/gtktextbtree.c
@@ -754,10 +754,12 @@ _gtk_text_btree_delete (GtkTextIter *start,
   gtk_text_iter_order (start, end);
 
   tree = _gtk_text_iter_get_btree (start);
- 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
-  
+#endif
+
   /* Broadcast the need for redisplay before we break the iterators */
   DV (g_print ("invalidating due to deleting some text (%s)\n", G_STRLOC));
   _gtk_text_btree_invalidate_region (tree, start, end, FALSE);
@@ -1077,8 +1079,10 @@ _gtk_text_btree_delete (GtkTextIter *start,
   chars_changed (tree);
   segments_changed (tree);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 
   /* Re-initialize our iterators */
   _gtk_text_btree_get_iter_at_line (tree, start, start_line, start_byte_offset);
@@ -1359,8 +1363,10 @@ find_line_by_y (GtkTextBTree *tree, BTreeView *view,
 {
   gint current_y = 0;
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 
   if (node->level == 0)
     {
@@ -2011,8 +2017,10 @@ _gtk_text_btree_tag (const GtkTextIter *start_orig,
 
   queue_tag_redisplay (tree, tag, &start, &end);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 }
 
 
@@ -2736,9 +2744,11 @@ real_set_mark (GtkTextBTree      *tree,
   
   iter = *where;
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_iter_check (&iter);
-  
+#endif
+
   if (mark != NULL)
     {
       if (redraw_selections &&
@@ -2793,9 +2803,11 @@ real_set_mark (GtkTextBTree      *tree,
                              mark);
     }
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_iter_check (&iter);
-  
+#endif
+
   /* Link mark into new location */
   gtk_text_btree_link_segment (mark, &iter);
 
@@ -2808,12 +2820,14 @@ real_set_mark (GtkTextBTree      *tree,
 
   redisplay_mark_if_visible (mark);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
-    _gtk_text_iter_check (&iter);
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
+    {
+      _gtk_text_iter_check (&iter);
+      _gtk_text_btree_check (tree);
+    }
+#endif
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
-    _gtk_text_btree_check (tree);
-  
   return mark;
 }
 
@@ -4329,8 +4343,10 @@ _gtk_text_line_next_could_contain_tag (GtkTextLine  *line,
 
   g_return_val_if_fail (line != NULL, NULL);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 
   if (tag == NULL)
     {
@@ -4492,8 +4508,10 @@ _gtk_text_line_previous_could_contain_tag (GtkTextLine  *line,
 
   g_return_val_if_fail (line != NULL, NULL);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 
   if (tag == NULL)
     {
@@ -5264,8 +5282,10 @@ _gtk_text_btree_validate (GtkTextBTree *tree,
       if (new_height)
         *new_height = state.new_height;
 
-      if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+      if (GTK_DEBUG_CHECK (TEXT))
         _gtk_text_btree_check (tree);
+#endif
 
       return TRUE;
     }
@@ -5973,8 +5993,10 @@ post_insert_fixup (GtkTextBTree *tree,
       gtk_text_btree_rebalance (tree, node);
     }
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 }
 
 static GtkTextTagInfo*
@@ -6539,8 +6561,10 @@ gtk_text_btree_link_segment (GtkTextLineSegment *seg,
   cleanup_line (line);
   segments_changed (tree);
 
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_btree_check (tree);
+#endif
 }
 
 static void
@@ -6634,7 +6658,7 @@ _gtk_toggle_segment_check_func (GtkTextLineSegment *segPtr,
 /*
  * Debug
  */
-
+#ifdef G_ENABLE_DEBUG
 static void
 gtk_text_btree_node_view_check_consistency (GtkTextBTree     *tree,
                                             GtkTextBTreeNode *node,
@@ -7081,6 +7105,7 @@ _gtk_text_btree_check (GtkTextBTree *tree)
                seg->body.chars);
     }
 }
+#endif /* G_ENABLE_DEBUG */
 
 void _gtk_text_btree_spew_line (GtkTextBTree* tree, GtkTextLine* line);
 void _gtk_text_btree_spew_segment (GtkTextBTree* tree, GtkTextLineSegment* seg);
diff --git a/gtk/gtktextiter.c b/gtk/gtktextiter.c
index 781d141254..c600b83258 100644
--- a/gtk/gtktextiter.c
+++ b/gtk/gtktextiter.c
@@ -369,7 +369,7 @@ is_segment_start (GtkTextRealIter *real)
 static void
 check_invariants (const GtkTextIter *iter)
 {
-  if (gtk_get_debug_flags () & GTK_DEBUG_TEXT)
+  if (GTK_DEBUG_CHECK (TEXT))
     _gtk_text_iter_check (iter);
 }
 #else
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 9a401f0bb4..6dd70c4552 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -6042,8 +6042,10 @@ cursor_blinks (GtkTextView *text_view)
 #ifdef DEBUG_VALIDATION_AND_SCROLLING
   return FALSE;
 #endif
-  if (gtk_get_debug_flags () & GTK_DEBUG_UPDATES)
+#ifdef G_ENABLE_DEBUG
+  if (GTK_DEBUG_CHECK (UPDATES))
     return FALSE;
+#endif
 
   g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
 
diff --git a/gtk/gtktreestore.c b/gtk/gtktreestore.c
index cec1b1e638..792eb7730c 100644
--- a/gtk/gtktreestore.c
+++ b/gtk/gtktreestore.c
@@ -192,16 +192,19 @@ static void     gtk_tree_store_move                    (GtkTreeStore           *
                                                         gboolean                before);
 
 
+#ifdef G_ENABLE_DEBUG
 static inline void
 validate_tree (GtkTreeStore *tree_store)
 {
-  if (gtk_get_debug_flags () & GTK_DEBUG_TREE)
+  if (GTK_DEBUG_CHECK (TREE))
     {
       g_assert (G_NODE (tree_store->priv->root)->parent == NULL);
-
       validate_gnode (G_NODE (tree_store->priv->root));
     }
 }
+#else
+#define validate_tree(store)
+#endif
 
 G_DEFINE_TYPE_WITH_CODE (GtkTreeStore, gtk_tree_store, G_TYPE_OBJECT,
                          G_ADD_PRIVATE (GtkTreeStore)
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index eef2a14937..424813e2c6 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -5839,7 +5839,7 @@ gtk_widget_size_allocate_with_baseline (GtkWidget     *widget,
   gtk_widget_push_verify_invariants (widget);
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_GEOMETRY)
+  if (GTK_DEBUG_CHECK (GEOMETRY))
     {
       gint depth;
       GtkWidget *parent;
@@ -5901,7 +5901,7 @@ gtk_widget_size_allocate_with_baseline (GtkWidget     *widget,
     }
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_GEOMETRY)
+  if (GTK_DEBUG_CHECK (GEOMETRY))
     {
       if ((min_width > real_allocation.width || min_height > real_allocation.height) &&
           !GTK_IS_SCROLLABLE (widget))
@@ -6845,7 +6845,7 @@ _gtk_widget_draw_internal (GtkWidget *widget,
                      &result);
 
 #ifdef G_ENABLE_DEBUG
-      if (G_UNLIKELY (gtk_get_debug_flags () & GTK_DEBUG_BASELINES))
+      if (GTK_DEBUG_CHECK (BASELINES))
 	{
 	  gint baseline = gtk_widget_get_allocated_baseline (widget);
 	  gint width = gtk_widget_get_allocated_width (widget);
@@ -15584,7 +15584,7 @@ gtk_widget_set_clip (GtkWidget           *widget,
   priv = widget->priv;
 
 #ifdef G_ENABLE_DEBUG
-  if (gtk_get_debug_flags () & GTK_DEBUG_GEOMETRY)
+  if (GTK_DEBUG_CHECK (GEOMETRY))
     {
       gint depth;
       GtkWidget *parent;