HarfBuzz is licensed under the so-called "Old MIT" license. Details follow.
-Copyright (C) 2010 Google, Inc.
-Copyright (C) 2006 Behdad Esfahbod
-Copyright (C) 2009 Keith Stribley
-Copyright (C) 2009 Martin Hosken and SIL International
-Copyright (C) 2007 Chris Wilson
-Copyright (C) 2004,2007,2008,2009,2010 Red Hat, Inc.
-Copyright (C) 1998-2004 David Turner and Werner Lemberg
+Copyright © 2011 Codethink Limited
+Copyright © 2010,2011 Google, Inc.
+Copyright © 2006 Behdad Esfahbod
+Copyright © 2009 Keith Stribley
+Copyright © 2009 Martin Hosken and SIL International
+Copyright © 2007 Chris Wilson
+Copyright © 2004,2007,2008,2009,2010 Red Hat, Inc.
+Copyright © 1998-2004 David Turner and Werner Lemberg
+
For full copyright notices consult the individual files in the package.