[pango] [HB] Fix lookup_flag ignoring

[Behdad Esfahbod <behdad src gnome org>]

commit 44164ee60f5ef2fc4f7a03846b60d72eb67ecb0e
Author: Behdad Esfahbod <behdad behdad org>
Date:   Thu Oct 29 03:00:44 2009 -0400

    [HB] Fix lookup_flag ignoring
    
    Reported by Keith Stribley on HarfBuzz list.

 pango/opentype/hb-ot-layout-common-private.hh |    1 +
 pango/opentype/hb-ot-layout.cc                |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/pango/opentype/hb-ot-layout-common-private.hh b/pango/opentype/hb-ot-layout-common-private.hh
index bd43975..a1e625d 100644
--- a/pango/opentype/hb-ot-layout-common-private.hh
+++ b/pango/opentype/hb-ot-layout-common-private.hh
@@ -244,6 +244,7 @@ struct LookupFlag : USHORT
     IgnoreBaseGlyphs	= 0x0002u,
     IgnoreLigatures	= 0x0004u,
     IgnoreMarks		= 0x0008u,
+    IgnoreFlags		= 0x000Eu,
     UseMarkFilteringSet	= 0x0010u,
     Reserved		= 0x00E0u,
     MarkAttachmentType	= 0xFF00u
diff --git a/pango/opentype/hb-ot-layout.cc b/pango/opentype/hb-ot-layout.cc
index 3b6b8da..67b2b9a 100644
--- a/pango/opentype/hb-ot-layout.cc
+++ b/pango/opentype/hb-ot-layout.cc
@@ -148,7 +148,7 @@ _hb_ot_layout_check_glyph_property (hb_face_t    *face,
   /* 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)