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COPYING, clarify the licenses 

add a table of files licensed differently to 'New BSD'

We will try to contact USB officials to obtain a re-licensing of CIDER.
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Holger Vogt 2017-12-02 17:17:44 +01:00 committed by rlar
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COPYING
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@ -1,111 +1,104 @@
12345678901234567890123456789012345678901234567890123456789012345678901234567890 Ngspice Licensing
Ngspice 27
Copyright (c) 2017, Copyright (c) 2018 by ngspice maintainers
All rights reserved. All rights reserved.
license for this document: CC-BY-SA v4.0
Foreword: **************************** ngspice license **********************************
The name 'Spice' (Simulation Program with Integrated Circuit Emphasis)
was originally chosen at the University of California, Berkeley. The
original Berkeley code is covered under the modified BSD license and
thus sets the basis for all other code added.
As Spice is the basis of almost all circuit simulators, the major part of the
analogue and mixed signals simulation's code is designed to fit with it.
The *spices (generic name for its forks) are heterogeneous in many points due
to the work of researchers, electronic designers, software editors, etc.
The Ngspice team tries to collect work from the different sources and
contribute new functionalities. Thus, the material we manipulate is
heterogeneous in licenses. Keeping the licenses as is, but also keep it
compatible with the new BSD license, is the way to live with that diversity.
Copyleft is a fundamental question in FOSS development. The choice of a The ngspice source code has evolved over time by integrating contributions
copylefted contribution, or a non copylefted contribution is an important from various sources (e.g. Spice3f5, XSPICE, CIDER, numparam, tclspice and
choice that should be respected. Ngspice branch as a whole will not be covered others). Thus a mixture of license statements prevails.
by a specific license. The Ngspice team wants to encourage contributions to
ngspice. We let each new developer choose its position regarding copyleft,
as we respect the position of the former developers. In order to keep things
clear ngspice team proposes to follow the following guidelines:
Each piece of code should be kept under its original contributor's license. The ngspice license is the `Modified BSD' license. This is adopted for all of
As for any project, modifications made in sources covered by a less its source code, test and example files except for the files listed below.
restrictive license can be covered by a more restrictive license than new BSD.
We do not encourage it.
If you feel to add code in a file under a different license than the rest of ************** files with licenses different to 'Modified BSD' ****************
the file, please use comments to mark the boundaries of the modification, and
edit the comments at the beginning of the file with correct license and
copyright information.
We encourage restrictive licenses to be chosen only for new functionalities, * ngspice/doc
written in distinct files, leading to distinct libraries that link depending SPICEDOC, not compatible to DFSG
on a specific configure flag. considered outdated
We encourage non proliferation of licenses (e.g. choosing either LGPL or * ngspice/contrib
new BSD). GPL is not suitable for code to be directly linked into ngspice, GPL, Public Domain
but may be used in shared object libraries only.
This heterogeneous license status requires some effort to keep track on licenses * ngspice/m4
applied. Please take care of knowing which license applies to the code you are unnamed, compatible to DFSG
editing, or conveying and not to commit license infringements, especially to
GPL and LGPL which are quite restrictive.
On 2007, July 17th spice 3f5 changed from its original license to the new BSD * ngspice/src/tclspice.c
license. (http://embedded.eecs.berkeley.edu/pubs/downloads/spice/index.htm) LGPLv2
On 2008, December 1st, tclspice changes license from GPL to LGPLv2, in * all files in ngspice/src/maths/sparse
accordance with Multigig Ltd, the copyright holder. unnamed MIT license, compatible to New BSD
The original CIDER license (see below) does not contain the controversial * ngspice/src/spicelib/devices/adms/ekv
advertisement clause and thus is compatible to the new BSD license. In addition * ngspice/src/spicelib/devices/adms/hicum0
this clause has been removed from all BSD licensed software originating from UCB * ngspice/src/spicelib/devices/adms/hicum2
(see statement below). * ngspice/src/spicelib/devices/adms/psp102
copyright info, but no license information given, vendor specific licenses
The following table is a summary of license status: ngspice/src/spicelib/devices/adms/mextram
Author License Notes Educational Community License version 1.0
numparam Georg Post LGPL Applies to the code in ngspice/src/spicelib/devices/adms/admst
frontend/numparam LGPLv2.1
adms Laurent Lemaitre LGPL Applies to scripts in the
spicelib/dev/adms
tclspice Stefan Jones LGPL TCL integration
cider U. of California New BSD Device level simulator
xspice Georgia Tech. Public D Mixed signals
spice U. of California New BSD Analog circuit simulation
table.cm Holger Vogt GPL Code model shared library
containing GPLed code.
ngspice/src/spicelib/devices/ndev
public domain
--------------------------------- New BSD ----------------------------------- ngspice/src/xspice
public domain
except for
ngspice/src/xspice/icm/table
GPLv2 or newer
All `old' BSD licenses (of SPICE or CIDER) have been changed to the `modified' ngspice/src/frontend/numparam
BSD license according to the following publication LGPLv2 or newer
see [ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change]):
July 22, 1999 ngspice/src/ciderlib
CIDER is distributed with its own license (see below) that is not compatible
to DFSG (https://embedded.eecs.berkeley.edu/pubs/downloads/cider/index.htm).
CIDER shall be covered New BSD according to UCB officials, but this
re-licensing is still under discussion
(see https://lists.debian.org/debian-legal/2016/10/msg00022.html).
Therefore CIDER may not be made available in all software distributions.
To All Licensees, Distributors of Any Version of BSD: ngspice manual
(see https://sourceforge.net/p/ngspice/ngspice-manuals/ci/master/tree/)
Creative Commons Attribution Share-Alike (CC-BY-SA) v4.0
As you know, certain of the Berkeley Software Distribution (`BSD') source code -------------------------------------- ngspice ---------------------------------
files require that further distributions of products containing all or ---------------------------------- 'Modified BSD' ------------------------------
portions of the software, acknowledge within their advertising materials
that such products contain software developed by UC Berkeley and its contributors.
Specifically, the provision reads: Copyright 1985 - 2018, Regents of the University of California and others
`3. All advertising materials mentioning features or use of this software must Redistribution and use in source and binary forms, with or without modification,
display the following acknowledgment: This product includes software developed are permitted provided that the following conditions are met:
by the University of California, Berkeley and its contributors.'
Effective immediately, licensees and distributors are no longer required to 1. Redistributions of source code must retain the above copyright notice,
include the acknowledgment within advertising materials. Accordingly, the this list of conditions and the following disclaimer.
foregoing paragraph of those BSD Unix files containing it is hereby deleted
in its entirety.
William Hoskins 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.
Director, Office of Technology Licensing 3. Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
University of California, Berkeley
---------------------------------- Cider ----------------------------------- ---------------------------------- Cider -----------------------------------
@ -154,28 +147,25 @@ University of California, Berkeley
documentation. documentation.
---------------------------------- Spice3f5 -------------------------------- ---------------------------------- Xspice --------------------------------
Copyright (c) 1985-1991 The Regents of the University of California. THE SOFTWARE PROGRAMS BELOW ARE IN THE PUBLIC DOMAIN AND ARE PROVIDED FREE OF
All rights reserved. ANY CHARGE. THE GEORGIA TECH RESEARCH CORPORATION, THE GEORGIA INSTITUTE OF
TECHNOLOGY, AND/OR OTHER PARTIES PROVIDE THIS SOFTWARE "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH THE USER.
SHOULD THE PROGRAM PROVE DEFECTIVE, THE USER ASSUMES THE ENTIRE COST OF ALL
NECESSARY SERVICING, REPAIR OR CORRECTION. IN NO EVENT WILL THE GEORGIA TECH
RESEARCH CORPORATION, THE GEORGIA INSTITUTE OF TECHNOLOGY, AND/OR OTHER PARTIES
PROVIDING THE PROGRAMS BELOW BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS).
Permission is hereby granted, without written agreement and without license
or royalty fees, to use, copy, modify, and distribute this software and its
documentation for any purpose, provided that the above copyright notice and
the following two paragraphs appear in all copies of this software.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR ---------------------------------- others --------------------------------
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN
"AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
-------------------------------- Tclspice --------------------------------
GNU LESSER GENERAL PUBLIC LICENSE GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999 Version 2.1, February 1999
@ -234,7 +224,7 @@ modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be author's reputation will not be affected by problems that might be
introduced by others. introduced by others.
Finally, software patents pose a constant threat to the existence of Finally, software patents pose a constant threat to the existence of
any free program. We wish to make sure that a company cannot any free program. We wish to make sure that a company cannot
effectively restrict the users of a free program by obtaining a effectively restrict the users of a free program by obtaining a
@ -290,7 +280,7 @@ modification follow. Pay close attention to the difference between a
"work based on the library" and a "work that uses the library". The "work based on the library" and a "work that uses the library". The
former contains code derived from the library, whereas the latter must former contains code derived from the library, whereas the latter must
be combined with the library in order to run. be combined with the library in order to run.
GNU LESSER GENERAL PUBLIC LICENSE GNU LESSER GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@ -337,7 +327,7 @@ Library.
You may charge a fee for the physical act of transferring a copy, You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange for a and you may at your option offer warranty protection in exchange for a
fee. fee.
2. You may modify your copy or copies of the Library or any portion 2. You may modify your copy or copies of the Library or any portion
of it, thus forming a work based on the Library, and copy and of it, thus forming a work based on the Library, and copy and
distribute such modifications or work under the terms of Section 1 distribute such modifications or work under the terms of Section 1
@ -395,7 +385,7 @@ instead of to this License. (If a newer version than version 2 of the
ordinary GNU General Public License has appeared, then you can specify ordinary GNU General Public License has appeared, then you can specify
that version instead if you wish.) Do not make any other change in that version instead if you wish.) Do not make any other change in
these notices. these notices.
Once this change is made in a given copy, it is irreversible for Once this change is made in a given copy, it is irreversible for
that copy, so the ordinary GNU General Public License applies to all that copy, so the ordinary GNU General Public License applies to all
subsequent copies and derivative works made from that copy. subsequent copies and derivative works made from that copy.
@ -446,7 +436,7 @@ Library will still fall under Section 6.)
distribute the object code for the work under the terms of Section 6. distribute the object code for the work under the terms of Section 6.
Any executables containing that work also fall under Section 6, Any executables containing that work also fall under Section 6,
whether or not they are linked directly with the Library itself. whether or not they are linked directly with the Library itself.
6. As an exception to the Sections above, you may also combine or 6. As an exception to the Sections above, you may also combine or
link a "work that uses the Library" with the Library to produce a link a "work that uses the Library" with the Library to produce a
work containing portions of the Library, and distribute that work work containing portions of the Library, and distribute that work
@ -508,7 +498,7 @@ restrictions of other proprietary libraries that do not normally
accompany the operating system. Such a contradiction means you cannot accompany the operating system. Such a contradiction means you cannot
use both them and the Library together in an executable that you use both them and the Library together in an executable that you
distribute. distribute.
7. You may place library facilities that are a work based on the 7. You may place library facilities that are a work based on the
Library side-by-side in a single library together with other library Library side-by-side in a single library together with other library
facilities not covered by this License, and distribute such a combined facilities not covered by this License, and distribute such a combined
@ -549,7 +539,7 @@ subject to these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein. restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties with You are not responsible for enforcing compliance by third parties with
this License. this License.
11. If, as a consequence of a court judgment or allegation of patent 11. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues), infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or conditions are imposed on you (whether by court order, agreement or
@ -601,7 +591,7 @@ conditions either of that version or of any later version published by
the Free Software Foundation. If the Library does not specify a the Free Software Foundation. If the Library does not specify a
license version number, you may choose any version ever published by license version number, you may choose any version ever published by
the Free Software Foundation. the Free Software Foundation.
14. If you wish to incorporate parts of the Library into other free 14. If you wish to incorporate parts of the Library into other free
programs whose distribution conditions are incompatible with these, programs whose distribution conditions are incompatible with these,
write to the author to ask for permission. For software which is write to the author to ask for permission. For software which is
@ -634,18 +624,14 @@ FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. DAMAGES.
---------------------------------- Xspice --------------------------------
THE SOFTWARE PROGRAMS BELOW ARE IN THE PUBLIC DOMAIN AND ARE PROVIDED FREE OF ----------------------------------- m4 -------------------------------------
ANY CHARGE. THE GEORGIA TECH RESEARCH CORPORATION, THE GEORGIA INSTITUTE OF
TECHNOLOGY, AND/OR OTHER PARTIES PROVIDE THIS SOFTWARE "AS IS" WITHOUT WARRANTY LICENSE
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH THE USER.
SHOULD THE PROGRAM PROVE DEFECTIVE, THE USER ASSUMES THE ENTIRE COST OF ALL Copying and distribution of this file, with or without modification, are
NECESSARY SERVICING, REPAIR OR CORRECTION. IN NO EVENT WILL THE GEORGIA TECH permitted in any medium without royalty provided the copyright notice
RESEARCH CORPORATION, THE GEORGIA INSTITUTE OF TECHNOLOGY, AND/OR OTHER PARTIES and this notice are preserved. This file is offered as-is, without any
PROVIDING THE PROGRAMS BELOW BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY warranty.
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS).