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+Upstream Source
+===============
+
+General
+-------
+
+Copyright 1983, 1987-1994 The Regents of the University of California
+Copyright 1991-1999 Karl Lehenbauer and Mark Diekhans
+Copyright 1993-1997 Bell Labs Innovations for Lucent Technologies
+Copyright 1993-1998 Lucent Technologies, Inc.
+Copyright 1994-2000 Sun Microsystems Incorporated
+Copyright 1995 Apple Computer, Inc.
+Copyright 1997-2000 Ajuba Solutions
+Copyright 1998-2000 Scriptics Corporation
+Copyright 1998 Mark Harrison
+Copyright 1998 Paul Duffin
+Copyright 1999-2000, 2002, 2004-2010 Andreas Kupries
+    <andreas_kupries@users.sourceforge.net>
+Copyright 1999 America Online, Inc.
+Copyright 2001-2002, 2004-2010 Kevin B. Kenny <kennykb@acm.org>
+Copyright 2001-2008 Daniel A. Steffen <das@users.sourceforge.net>
+Copyright 2001-2013 Donal K. Fellows
+Copyright 2001-2004 Vincent Darley
+Copyright 2001-2002, 2004-2008 ActiveState Software Inc
+Copyright 2002-2010 Miguel Sofer
+Copyright 2003-2004 Georgios Petasis <petasis@iit.demokritos.gr>
+Copyright 2003-2004, 2006-2008 Joe Mistachkin
+Copyright 2003 Simon Geard
+Copyright 2004-2006, 2008 Miguel Sofer <msofer@users.sourceforge.net>
+Copyright 2004-2005 Pascal Scheffers <pascal@scheffers.net>
+Copyright 2004 Zoran Vasiljevic
+Copyright 2005 Unitas Software B.V.
+Copyright 2006 Neil Madden
+Copyright 2006 Sam Bromley
+Copyright 2008 Peter Spjuth <pspjuth@users.sourceforge.net>
+Copyright 2008 George Peter Staplin
+Copyright 2008 Pat Thoyts
+Copyright 2010 Ozgur Dogan Ugurlu
+Copyright 2012 Trevor Davel
+Portions contributed by Chris Kingsley, Jack Jansen and Ray Johnson
+
+This software is copyrighted by the Regents of the University of
+California, Sun Microsystems, Inc., Scriptics Corporation, ActiveState
+Corporation and other parties.  The following terms apply to all files
+associated with the software unless explicitly disclaimed in
+individual files.
+
+The authors hereby grant permission to use, copy, modify, distribute,
+and license this software and its documentation for any purpose, provided
+that existing copyright notices are retained in all copies and that this
+notice is included verbatim in any distributions. No written agreement,
+license, or royalty fee is required for any of the authorized uses.
+Modifications to this software may be copyrighted by their authors
+and need not follow the licensing terms described here, provided that
+the new terms are clearly indicated on the first page of each file where
+they apply.
+
+IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
+FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
+DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
+IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
+NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
+MODIFICATIONS.
+
+GOVERNMENT USE: If you are acquiring this software on behalf of the
+U.S. government, the Government shall have only "Restricted Rights"
+in the software and related documentation as defined in the Federal 
+Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
+are acquiring the software on behalf of the Department of Defense, the
+software shall be classified as "Commercial Computer Software" and the
+Government shall have only "Restricted Rights" as defined in Clause
+252.227-7014 (b) (3) of DFARs.  Notwithstanding the foregoing, the
+authors grant the U.S. Government and others acting in its behalf
+permission to use and distribute the software in accordance with the
+terms specified in this license. 
+
+Contributions from Don Porter, NIST, 2002-2003, 2005, 2006-2007.  (not subject
+    to US copyright)
+Parts written by Jean-Claude Wippler, as part of Tclkit, placed in the
+    public domain March 2003.
+
+Regular expressions code
+------------------------
+
+Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+
+Development of this software was funded, in part, by Cray Research Inc.,
+UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
+Corporation, none of whom are responsible for the results.  The author
+thanks all of them.
+
+Redistribution and use in source and binary forms -- with or without
+modification -- are permitted for any purpose, provided that
+redistributions in source form retain this entire copyright notice and
+indicate the origin and nature of any modifications.
+
+I'd appreciate being given credit for this package in the documentation of
+software which uses it, but that is not a requirement.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+generic/tclDate.c
+-----------------
+
+A Bison parser, made by GNU Bison 2.3.
+
+Skeleton implementation for Bison's Yacc-like parsers in C
+
+Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
+
+As a special exception, you may create a larger work that contains
+part or all of the Bison parser skeleton and distribute that work
+under terms of your choice, so long as that work isn't itself a
+parser generator using the skeleton or a modified version thereof
+as a parser skeleton.  Alternatively, if you modify or redistribute
+the parser skeleton itself, you may (at your option) remove this
+special exception, which will cause the skeleton and the resulting
+Bison output files to be licensed under the GNU General Public
+License without this special exception.
+
+This special exception was added by the Free Software Foundation in
+version 2.2 of Bison.
+
+unix/tclUnixFCmd.c
+------------------
+
+Portions of this code were derived from NetBSD source code which has the
+following copyright notice:
+
+Copyright (c) 1988, 1993, 1994
+     The Regents of the University of California. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+1. Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors may
+   be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+
+compat/dlfcn.h and unix/tclLoadAix.c
+------------------------------------
+
+This file is subject to the following copyright notice, which is
+different from the notice used elsewhere in Tcl but rougly
+equivalent in meaning.
+
+Copyright (c) 1992,1993,1995,1996, Jens-Uwe Mager, Helios Software GmbH
+Not derived from licensed software.
+
+Permission is granted to freely use, copy, modify, and redistribute
+this software, provided that the author is not construed to be liable
+for any results of using the software, alterations are clearly marked
+as such, and this notice is not modified.
+
+compat/unistd.h
+---------------
+
+Copyright 1989 Regents of the University of California Permission to use,
+copy, modify, and distribute this software and its documentation for any
+purpose and without fee is hereby granted, provided that the above
+copyright notice appear in all copies. The University of California makes
+no representations about the suitability of this software for any purpose.
+It is provided "as is" without express or implied warranty.
+
+compat/fake-rfc2553.h and compat/fake-rfc2553.c
+-----------------------------------------------
+
+Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
+Copyright (C) 1999 WIDE Project.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the project nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+LibTomMath
+----------
+
+The library is free for all purposes without any express
+guarantee it works.
+
+Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com