I was looking at ‘sdl_opengl.h’ (SDL 1.2.3) and noticed this:
** Copyright 1992-1999 Silicon Graphics, Inc.
** All Rights Reserved.**
** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
** the contents of this file may not be disclosed to third parties,
** duplicated in any form, in whole or in part, without the prior
** permission of Silicon Graphics, Inc.
** RESTRICTED RIGHTS LEGEND:
** Use, duplication or disclosure by the Government is subject to
** as set forth in subdivision ©(1)(ii) of the Rights in Technical
** and Computer Software clause at DFARS 252.227-7013, and/or in
** successor clauses in the FAR, DOD or NASA FAR Supplement.
** rights reserved under the Copyright Laws of the United States.
What’s that supposed to mean? Is it true? If it’s true, why is the
file being distributed? If it’s not true, why is that text in the