Library License Selection

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The final decision, based on the Voting Table, is to release the sdcc library under the GPL+LE licence. See the SDCC library source file license header.

Contents

Library Licensing

SDCC's libraries are licensed under a number of different licenses including the GPL and LGPL. This page contains information about a planned unification and simplification of all SDCC libraries with a consistent license.

Licenses Under Consideration

I've done my best to summarize the key features of each license in an unbiased way. If I've made a mistake, please correct the error.

  • GPL+LE - GPL plus Library (or Runtime) Exception
    • Strong copyleft.
    • Addresses problems with GPL and LGPL use in embedded projects.
    • Allows development of proprietary software.
  • MPL - Mozilla Public License
    • Incompatible with GPL. Dual GPL licensing would be required to support GPL software development.
    • Weak copyleft. Copyleft only applies to original source files.
    • Allows development of proprietary software.
    • Code from libraries may be directly copied into proprietary software without restriction.
  • BSD - BSD 3 Clause License
    • No copyleft.
    • Code from libraries may be directly copied into proprietary software without restriction.
    • Copyright notice must be supplied with any software.
  • X11 MIT
    • No copyleft.
    • Code from libraries may be directly copied into proprietary software without restriction.

Voting Table

Please select all acceptable licenses next to your name.

Developer Perferred License
User name Full name GPL LE MPL BSD MIT Don't Care No Change
anoncvs_rymo
bela Bela Torok ok
bernhardheld Bernhard Held ok no maybe no
borutr Borut Razem ok no maybe rather not
drdani Daniel Drotos ok no maybe ok
epetrich Erik Petrich ok no ok no
frief Frieder Ferlemann ok no maybe maybe
hjdorn Hans Dorn
jbess Jerome Bessiere
jesusc Jesus Calvino-Fraga ok no ok no
johanknol Johan Knol ok
jtvolpe John Volpe
karahalios Alex Karahalios
kbongers Karl Bongers ok
kflittner Klaus Flittner
kmh Klaus Martin Hennemann
kvigor Kevin Vigor ok no ok no
maartenbrock Maarten Brock ok rather not ok ok
mhelmling Martin Helmling
michaelh Michael Hope ok no maybe no
mschmitt Michael Schmitt ok no no no
pjs Paul Stoffregen ok maybe no no
sandeep Sandeep Dutta ok
sdattalo Scott Dattalo ok no no no
sdcc-builder
skenton Stephen M. Kenton
slade_rich Slade Rich ok
stevewilliams Stephen Williams ok no maybe maybe
tecodev Raphael Neider ok rather not ok ok
uid21261
vav Anton Voloshin
vrokas Vangelis Rokas ok no maybe no
wiml Wim Lewis
Dmitri S. Obukhov ok
spth Philipp Klaus Krause ok no
Jean-Louis Vern ok
Josef Wolf ok
Martijn van Balen ok
peter_townson Peter Townson ok
Lucas Loizaga ok
Juan Gonzalez ok
Bjorn Bringert ok
Weston Schmidt ok no maybe maybe
Bernd Bartmann ok
Krzysztof Polomka ok no ok ok
Ben Boeckel ok rather not ok ok
sjborley Steven Borley ok no maybe no
Pravin Angolkar
Philippe Latu ok
simonsunnyboy Matthias Arndt ok no maybe definitly no
Omar Espinosa
Gudjon I. Gudjonsson ok
Kyle Guinn ok no maybe no
GHJ Morsink ok
Llewellyn van Zyl ok
drift_solutions Indy Sams ok no ok ok
Zik Saleeba ok no ok ok
George Gallant ok
Robert Lacoste ok


     inexistent user
     virtual user
     conributed code to SDCC Runtime Library


Full Text of Licenses

GPL+LE

Source: libstdc++ library source (available from source control web interface at http://gcc.gnu.org/viewcvs/trunk/libstdc%2B%2B-v3/src/c%2B%2B98/compatibility.cc?revision=143913&view=markup)

Copyright (C) <YEAR>
<OWNER>

This library 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 library 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 library; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

As a special exception, if you link this library with other files, some of which are compiled with SDCC, to produce an executable, this library does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License.

MPL

Source: http://www.opensource.org/licenses/mozilla1.1.php

Mozilla Public License. The license is rather long, please see http://www.mozilla.org/MPL/MPL-1.1-annotated.html for more information.


BSD Style

Source: http://www.opensource.org/licenses/bsd-license.php

Copyright (c) <YEAR>, <OWNER> All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • 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.
  • Neither the name of the <ORGANIZATION> 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 OWNER 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.

X11/MIT License

Source: http://www.opensource.org/licenses/mit-license.php

Copyright (c) <year> <copyright holders>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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