diff -rupN pango1.0-1.26.0.orig/pango/opentype/hb-ot-layout.cc pango1.0-1.26.0/pango/opentype/hb-ot-layout.cc
--- pango1.0-1.26.0.orig/pango/opentype/hb-ot-layout.cc	2009-08-29 01:10:40.000000000 +0800
+++ pango1.0-1.26.0/pango/opentype/hb-ot-layout.cc	2009-11-24 23:37:38.000000000 +0800
@@ -148,7 +148,7 @@ _hb_ot_layout_check_glyph_property (hb_f
   /* Not covered, if, for example, glyph class is ligature and
    * lookup_flags includes LookupFlags::IgnoreLigatures
    */
-  if (property & lookup_flags)
+  if (property & lookup_flags & LookupFlag::IgnoreFlags)
     return false;
 
   if (property & HB_OT_LAYOUT_GLYPH_CLASS_MARK)
diff -rupN pango1.0-1.26.0.orig/pango/opentype/hb-ot-layout-common-private.hh pango1.0-1.26.0/pango/opentype/hb-ot-layout-common-private.hh
--- pango1.0-1.26.0.orig/pango/opentype/hb-ot-layout-common-private.hh	2009-08-29 05:15:12.000000000 +0800
+++ pango1.0-1.26.0/pango/opentype/hb-ot-layout-common-private.hh	2009-11-24 23:37:27.000000000 +0800
@@ -244,6 +244,7 @@ struct LookupFlag : USHORT
     IgnoreBaseGlyphs	= 0x0002u,
     IgnoreLigatures	= 0x0004u,
     IgnoreMarks		= 0x0008u,
+    IgnoreFlags         = 0x000Eu,
     UseMarkFilteringSet	= 0x0010u,
     Reserved		= 0x00E0u,
     MarkAttachmentType	= 0xFF00u