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Release calc version 2.11.0t10.5.1
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COPYING
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COPYING
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calc - arbitrary precision calculator
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This file is Copyrighted
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------------------------
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This file is covered under the following Copyright:
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Copyright (C) 1999 Landon Curt Noll
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All rights reserved.
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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# @(#) $Revision: 29.1 $
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# @(#) $Id: COPYING,v 29.1 1999/12/14 09:15:29 chongo Exp $
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# @(#) $Source: /usr/local/src/cmd/calc/RCS/COPYING,v $
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=-=
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Calc is covered by the GNU Lesser General Public License
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--------------------------------------------------------
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Calc is open software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation version 2.1 of the License.
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Calc is several binary link libraries, several modules, associated
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interface definition files and scripts used to control its compilation
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and installation.
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Calc is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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Public License for more details.
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A copy of the GNU Lesser General Public License is distributed with
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calc under the filename:
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COPYING-LGPL
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You may display this file by the calc command: help copying
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You may display the GNU Lesser General
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Public License by the calc command: help copying-lgpl
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You should have received a copy of the version 2.1 GNU Lesser General
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Public License with calc; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place
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Suite 330
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Boston, MA 02111-1307
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USA
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The contact addresses for calc is as follows:
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Web: http://reality.sgi.com/chongo/tech/comp/calc/index.html
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http://www.isthe.com/chongo/tech/comp/calc/index.html
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EMail: calc-tester at postofc dot corp dot sgi dot com
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calc-tester at isthe dot com
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[[ Replace 'at' with @, 'dot' is with . and remove spaces ]]
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The 2nd address set is provided in case the 1st address set no
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longer functions.
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=-=
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Calc's relationship to the GNU Lesser General Public License
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------------------------------------------------------------
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In section 0 of the GNU Lesser General Public License, one finds
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the following definition:
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The "Library", below, refers to any such software library or
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work which has been distributed under these terms.
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Calc is distributed under the terms of the GNU Lesser
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General Public License.
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In the same section 0, one also find the following:
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For a library, complete source code means all the source code
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for all modules it contains, plus any associated interface
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definition files, plus the scripts used to control compilation
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and installation of the library.
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There are at least two calc binary link libraries found in calc:
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libcalc.a libcustcalc.a
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Clearly all files that go into the creation of those binary link
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libraries are covered under the License.
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The ``scripts used to control compilation and installation of the
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of the library'' include:
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* Makefiles
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* source files created by the Makefiles
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* source code used in the creation of intermediate source files
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All of those files are covered under the License.
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The ``associated interface definition files'' are those files that:
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* show how the calc binary link libraries are used
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* test the validity of the binary link libraries
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* document routines found in the binary link libraries
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* show how one can interactively use the binary link libraries
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Calc provides an extensive set of files that perform the above
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functions.
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* files under the sample sub-directory
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* files under the help sub-directory
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* files under the lib sub-directory
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* the main calc.c file
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The ``complete source code'' includes ALL files shipped with calc,
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except for the exception files explicitly listed in the ``Calc
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copyrights and exception files'' section below.
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=-=
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Calc copyrights and exception files
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-----------------------------------
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With the exception of the files listed below, Calc is covered under
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the following Copyrights:
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Copyright (C) year David I. Bell
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Copyright (C) year David I. Bell and Landon Curt Noll
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Copyright (C) year David I. Bell and Ernest Bowen
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Copyright (C) year David I. Bell, Landon Curt Noll and Ernest Bowen
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Copyright (C) year Landon Curt Noll
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Copyright (C) year Ernest Bowen and Landon Curt Noll
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Copyright (C) year Ernest Bowen
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A few files are not covered under the GNU Lesser General Public
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License. The source files not covered are:
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shs1.c shs1.h shs.c shs.h
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md5.c md5.h lib/qtime.cal COPYING
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COPYING-LGPL
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The file COPYING-LGPL, which contains a copy of the version 2.1
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GNU Lesser General Public License, is itself Copyrighted by the
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Free Software Foundation, Inc. Please note that the Free Software
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Foundation, Inc. does NOT have a copyright over calc, only the
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COPYING-LGPL that is supplied with calc.
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This file, COPYING, is distributed under the Copyright found at the
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top of this file. It is important to note that you may distribute
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verbatim copies of this file but you may not modify this file.
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=-=
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General Copyleft and License info
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---------------------------------
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For general information on Copylefts, see:
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http://www.gnu.org/copyleft/
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For information on GNU Lesser General Public Licenses, see:
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http://www.gnu.org/copyleft/lesser.html
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http://www.gnu.org/copyleft/lesser.txt
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=-=
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Why calc did not use the GNU General Public License
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---------------------------------------------------
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It has been suggested that one should consider using the GNU General
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Public License instead of the GNU Lesser General Public License:
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http://www.gnu.org/philosophy/why-not-lgpl.html
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As you can read in the above URL, there are times where a library
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cannot give free software any particular advantage. One of those
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times is when there is significantly similar versions available
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that are not covered under a Copyleft such as the GNU General Public
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License.
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The reason why calc was placed under the GNU Lesser General Public
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License is because for many years (1984 thru 1999), calc was offered
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without any form of Copyleft. At the time calc was placed under
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the GNU Lesser General Public License, a number of systems and
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distributions distributed calc without a Copyleft.
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