diff -ruN guile-gtk-2.0-orig/gdk-2.0.defs guile-gtk-2.0/gdk-2.0.defs
--- guile-gtk-2.0-orig/gdk-2.0.defs	2007-08-07 10:45:30.000000000 -0700
+++ guile-gtk-2.0/gdk-2.0.defs	2007-08-07 10:46:50.000000000 -0700
@@ -1,6 +1,6 @@
 ;; -*- scheme -*-
 
-;; Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
+;; Copyright (C) 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
 ;;
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the GNU General Public License as
@@ -2291,6 +2291,15 @@
 (options
  (includes "#include <gdk/gdk.h>"
 	   "#include <gdk/gdkrgb.h>"
-	   "#include <gdk/gdkx.h>")
+	   "#include <gdk/gdkx.h>"
+	   "
+/* These macros not in pango 1.8.1 which comes with gtk 2.6.7 */
+#ifndef PANGO_PIXELS_FLOOR
+#define PANGO_PIXELS_FLOOR(d) (((int)(d)) >> 10)
+#endif
+#ifndef PANGO_PIXELS_CEIL
+#define PANGO_PIXELS_CEIL(d) (((int)(d) + 1023) >> 10)
+#endif")
+
  (init-func "sgtk_init_gtk_gdk_glue")
  (extra-init-code "sgtk_init_gdk_support ();"))