Here is a summary of the third party components licensing as of the 1.11 release.
Bundled with Source Code
Cpt | Version | License | License Link | Notes |
---|---|---|---|---|
libstemmer-porter | porter2 | BSD | http://snowballstem.org/license.html | |
m_widen_init | none | MIT | https://github.com/apache/incubator-madlib/blob/master/licenses/third_party/_M_widen_init.txt | |
python-argparse | 1.2.1 | Python | https://wiki.python.org/moin/PythonSoftwareFoundationLicenseFaq | |
pyyaml | 3.10 | MIT | http://pyyaml.org/wiki/PyYAML | |
UseLATEX.cmake | 2.1.1 | BSD | See header of https://github.com/kmorel/UseLATEX/blob/master/UseLATEX.cmake |
Downloaded at Build Time
Cpt | Version | License | License Link | Notes |
---|---|---|---|---|
boost | 1.61.0 | MIT | http://www.boost.org/users/license.html | |
pyxb | 1.2.4 | Apache 2.0 | http://pyxb.sourceforge.net/legal.html | See Note 1 below |
eigen | 3.2 | MPL 2.0 | http://eigen.tuxfamily.org/index.php?title=Main_Page#License | See Note 2 below |
Note 1
PyXB: Python XML Schema Bindings
http://pyxb.sourceforge.net/
http://pyxb.sourceforge.net/legal.html
says
“PyXB as a whole is made available under the Apache License v 2.0.”
See also
https://github.com/pabigot/pyxb/blob/next/LICENSE
which has the standard Apache License Version 2.0 verbage.
However, we noticed that it has a GPL 3.0 sub-component:
https://github.com/pabigot/pyxb/blob/next/doc/extapi.py
(This seems strange, but anyways…)
Remedy in Sept 2015 when MADlib entered as a Apache incubating project:
- At build time, we remove this GPL sub-component since it is not needed,
just to be 100% sure we are only including Apache License Version 2.0 software. - This is the reason there is a message during build that says “PyXB: Removing GPL component from code base”
Note 2
Eigen
http://eigen.tuxfamily.org/
http://eigen.tuxfamily.org/index.php?title=Main_Page#License
says
“Eigen is Free Software. Starting from the 3.1.1 version, it is licensed under the MPL2…Note that currently, a few features rely on third-party code licensed under the LGPL: SimplicialCholesky, AMD ordering, and constrained_cg.”
MADlib uses a later version than 3.1.1.
Remedy in Sept 2015 when MADlib entered as a Apache incubating project, as per http://www.apache.org/legal/resolved.html#category-b :
- Cloned Eigen header files and made needed changes, then maintained on a separate GitHub repo https://github.com/madlib/eigen
- This modified Eigen GitHub project carries forward the MPL license. The commits showing changes made are here https://github.com/madlib/eigen/tree/branches/3.2
- At build time, MADlib project will then include the Eigen header files from this repo
- Also we use the EIGEN_MPL2_ONLY preprocessor symbol to explicitly exclude the LGPL components