Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

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+                           GL widgets for Xt/Motif
+
+                           XFree86 implementation
+
+                         by Carlos A. M. dos Santos
+                        casantos@cpmet.ufpel.tche.br
+
+  ------------------------------------------------------------------------
+
+1. Introduction
+
+This directory contains the source code for SGI's OpenGL Xt/Motif(TM)
+widgets, slightly modified to generate both Motif 1.x and 2.x versions of
+the widget even if Motif is not available, as in the XFree86 distribution of
+the X Window System. This code is based on that distributed by Silicon
+Graphics as part of it's OpenGL Sample Implementation, not on the modified
+version distributed with Mesa.
+
+2. Installation
+
+This code is intended to be compiled as part of the normal XFree86 building
+process, under the xc/lib/GLw directory. To compile the library out of the X
+source tree, follow instructions below.
+
+2.1. Requirements
+
+Gzip and tar are needed to extract the files from the distribution archive.
+Tar is a standard UNIX utility but if you don't have it use GNU tar,
+available in source form at ftp://ftp.gnu.org/pub/gnu/. Gzip is not a
+standard UNIX utility, though available in many systems. You may obtain it
+(also source form) at the same FTP server as GNU tar.
+
+You need xmkmf and imake too. Depending on your operating system you may
+need to install some kind of X Window System development kit, so check the
+vendor documentation first. I was told that some UNIX systems don't have
+imake: report this as a bug (to your vendor, not me).
+
+Of course you will need a C compiler.
+
+2.2. Steps
+
+  1. Extract the source code from the distribution archive.
+
+     gzip -dc GLw.tar.gz | tar xf -
+
+  2. Go to the surce code directory and generate the makefile.
+
+     cd GLw
+     xmkmf
+
+     For LessTif, use "mxmkmf" instead of "xmkmf". Imake support is much
+     better in recent versions of LessTif (since late july 2000). If your
+     Motif or OpenGL libraries and/or include files are installed in
+     non-standard locations (some UNIX vendors seem to be very creative :-)
+     then edit the file named Imakefile, remove the leading XCOMM of the
+     lines containing MOTIF_INCLUDES and MOTIF_LDFLAGS and set the
+     appropriate values.
+
+  3. Compile the code with
+
+     make includes
+     make standalone
+
+  4. Install the library and manual pages with
+
+     make install
+     make install.man
+
+  5. Optionally, you may compile two test programs: xmdemo and xtdemo. You
+     need OpenGL (or Mesa) for both and Motif (or LessTif) for xmdemo. There
+     are four extra make targers for these programs: demos, stand-demos,
+     stand-xmdemo and stand-xtdemo. You may use them with:
+
+     make stand-demos
+     ./xmdemo ./xtdemo
+
+2.3. Creating a shared library
+
+By default only a static library is created because most of the UNIX
+loaders, if not all, complain about unresolved symbols even if the
+application doesn't use the modules in which such symbols are referenced.
+However, if your system supports libraries with weak symbols (e.g. Solaris,
+FreeBSD and Linux) it is possible to fool the loader. All you have to do is
+edit the Imakefile, changing "#define SharedLibGLw" and "#define
+GLwUseXmStubs" to YES, then repeat the compilation process starting from
+step 2 in the previous section.
+
+2.4. Problems
+
+If you have trouble, ask for help in the XFree86 "xperts" mailing list. Look
+at http://www.xfree86.org for instructions on how to subscribe. In
+desperation, send an email to casantos@cpmet.ufpel.tche.br.
+
+PLEASE DO NOT SEND ME EMAIL ASKING HOW TO INSTALL OR CONFIGURE YOUR
+OPERATING SYSTEM, MODEM, NETWORK CARD, BREAD TOASTER, COFEE MAKER OR
+WHATEVER ELSE!
+
+3. Copyrights
+
+Most of the code is covered by the following license terms:
+
+     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 © 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® Graphics System: A Specification (Version
+     1.2.1), released April 1, 1999; The OpenGL® Graphics System
+     Utility Library (Version 1.3), released November 4, 1998; and
+     OpenGL® Graphics with the X Window System® (Version 1.3), released
+     October 19, 1998. This software was created using the OpenGL®
+     version 1.2.1 Sample Implementation published by SGI, but has not
+     been independently verified as being compliant with the OpenGL®
+     version 1.2.1 Specification.
+
+The demonstration programs are covered by the following license terms:
+
+     Copyright © Mark J. Kilgard, 1995, 1996.
+
+     NOTICE: This source code distribution contains source code
+     contained in the book "Programming OpenGL for the X Window System"
+     (ISBN: 0-201-48359-9) published by Addison-Wesley. The programs
+     and associated files contained in the distribution were developed
+     by Mark J. Kilgard and are Copyright 1994, 1995, 1996 by Mark J.
+     Kilgard (unless otherwise noted). The programs are not in the
+     public domain, but they are freely distributable without licensing
+     fees. These programs are provided without guarantee or warrantee
+     expressed or implied.
+
+The files contained in directory GLwXm are fake Motif headers, covered by
+the XFree86 license, they permit us to generate both Motif 1.x and 2.x
+versions of the widget without having Motif. Notice that they are NOT part
+of a standard Motif distribution and shall not be used to compile any other
+code.
+
+4. Thanks
+
+Many thanks to Silicon Graphics and Mark J. Kilgard for making their
+software free.
+
+5. No thanks
+
+     THIS SECTION CONTAINS MY PERSONAL OPINIONS AND DOESN'T REPRESENT
+     AN OFFICIAL POSITION OF THE XFree86 PROJECT.
+
+The first incarnation of this version of libGLw used eight header files from
+LessTif, four for each Motif version. LessTif is covered by the GNU Library
+General Public License (LGPL) whose terms are not compatible with the
+XFree86 licensing policy. Since the copyright holder of LessTif is the Free
+Software Foundation (FSF), I asked Richard Stallman, president of FSF and so
+called "leader of the Free Software movement", permission to redistribute a
+copy of those eight headers under XFree86 terms, still maintaining the FSF
+copyright.
+
+Observe that I was not asking him to change the license of LessTif as a
+whole, but only to allow me to distribute copies of some header files
+containing function prototypes, variable declarations and data type
+definitions. Even so, Stallman said no because the files contained "more
+than 6000 lines of code". Which code? The LessTif headers are mostly copies
+of the Motif ones and don't contain any original GNU "code"! I can't still
+imagine a reason for Stallman's negative answer except for paranoia. He
+seems to ignore what Motif is and that LessTif's API is simply a copy of
+Motif's one.
+
+After spending some time, I made my own headers, that became much smaller
+than the previous ones because I included only a subset of the Motif API and
+merged everything into four files: 417 lines instead 6000. Humm, perhaps I
+should be grateful to Sallman too :-).
+
+6. Trademarks
+
+   * OpenGL is a trademark of Silicon Graphics, Inc.
+   * Motif is a trademark of the Open Group.
+
+  ------------------------------------------------------------------------
+
+
+
+$XFree86$