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Rationale for the licensing choosen for LabComm
===============================================
Primary goal: the owners of systems with LabComm communication in it,
should have the liberty to replace the LabComm parts with
any software they see fit.
Secondary goal: it should be possible to release propreitary software
with LabComm.
Wanted software architecture
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+------------------------------------------------------------+
| Propreitary software (any license) |
+------------------------------------------------------------+
| Labcomm glue (LGPL) |
+--------------+-----+--------------+ |
| Generated | | Generated | |
| encoder/ | | encoder/ | |
| decoder | * * | decoder | |
| ( GPLv3 + | | ( GPLv3 + | +---------------+
| permission) | | permission) | | Non-system |
+--------------+-----+--------------+--+ | library |
| LabComm library (GPLv3 + permission) | | (any license) |
+--------------------------------------+-----+----------+----+
| System library (any license) | |
+-------------------------------------------------------+ |
| OS (any license) |
+------------------------------------------------------------+
License considerations
^^^^^^^^^^^^^^^^^^^^^^
We need to allow linking to the LabComm library from the LGPL glue
(see http://www.gnu.org/licenses/gpl-faq.html#GPLIncompatibleLibs).
We can not set a license on generated code
(http://www.gnu.org/licenses/gpl-faq.html#GPLOutput),
but when used with the LabComm library we can force it
to be licensed under GPLv3.
Suggested license for all library files
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Copyright 2013 Anders Blomdell <anders.blomdell@control.lth.se>
This file is part of LabComm.
LabComm 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 3 of the License, or
(at your option) any later version.
LabComm 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, see <http://www.gnu.org/licenses/>.
Additional permission under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by directly linking
any functionality of it, with the the exception of calls denoting the
boundary of encoded samples and calls encoding primitive datatypes,
with any software licensed under the GNU Lesser General Public License,
the licensors of this Program grant you additional permission to convey
the resulting work.