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diff --git a/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h
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+++ b/nx-X11/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h
@@ -0,0 +1,122 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+*/
+/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h,v 1.3tsi Exp $ */
+
+/*
+ * mysetjmp.h
+ *
+ * $Date: 2004/04/23 18:42:55 $ $Revision: 1.2 $
+ * $Header: /cvs/xorg/xc/extras/ogl-sample/main/gfx/lib/glu/libnurbs/internals/mysetjmp.h,v 1.2 2004/04/23 18:42:55 eich Exp $
+ */
+
+#ifndef __glumysetjmp_h_
+#define __glumysetjmp_h_
+
+#ifdef STANDALONE
+struct JumpBuffer;
+extern "C" JumpBuffer *newJumpbuffer( void );
+extern "C" void deleteJumpbuffer(JumpBuffer *);
+extern "C" void mylongjmp( JumpBuffer *, int );
+extern "C" int mysetjmp( JumpBuffer * );
+#endif
+
+#ifdef GLBUILD
+#define setjmp		gl_setjmp
+#define longjmp 	gl_longjmp
+#endif
+
+#if defined(LIBRARYBUILD) || defined(GLBUILD)
+#include <setjmp.h>
+#include <stdlib.h>
+
+/* Fix up for libc5 Linux systems */
+#ifndef LIBC5BUILD
+#if defined(setjmp) && defined(__GNU_LIBRARY__) && \
+    (!defined(__GLIBC__) || (__GLIBC__ < 2))
+#define LIBC5BUILD 1
+#else
+#if !LIBC5BUILD
+#undef LIBC5BUILD
+#endif
+#endif
+#endif
+
+#ifndef LIBC5BUILD
+struct JumpBuffer {
+    jmp_buf	buf;
+};
+#else
+struct JumpBuffer {
+    union {
+	jmp_buf		jbuf;
+	sigjmp_buf	sbuf;
+    } buf;
+};
+#endif
+
+inline JumpBuffer *
+newJumpbuffer( void )
+{
+    return (JumpBuffer *) malloc( sizeof( JumpBuffer ) );
+}
+
+inline void
+deleteJumpbuffer(JumpBuffer *jb)
+{
+   free( (void *) jb);
+}
+
+inline void
+mylongjmp( JumpBuffer *j, int code ) 
+{
+#ifndef LIBC5BUILD
+    longjmp( j->buf, code );
+#else
+    longjmp( j->buf.jbuf, code);
+#endif
+}
+
+inline int
+mysetjmp( JumpBuffer *j )
+{
+#ifndef LIBC5BUILD
+    return setjmp( j->buf );
+#else
+    __sigjmp_save( j->buf.sbuf, 1);
+    return __setjmp( j->buf.sbuf->__jmpbuf );
+#endif
+}
+#endif
+
+#endif /* __glumysetjmp_h_ */