// SPDX-FileCopyrightText: 1991-1994 by Xerox Corporation.  All rights reserved.
// SPDX-FileCopyrightText: 1996-1999 by Silicon Graphics.  All rights reserved.
// SPDX-FileCopyrightText: 1999-2004 Hewlett-Packard Development Company, L.P.
// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
//
// SPDX-License-Identifier: LicenseRef-Boehm-GC