Wrong license? Shouldn't this library be GPL v3?

[walchko]

Hello, I was poking around and noticed the license on the vector, quaternion, etc files you have in the utility directory has this:

    Inertial Measurement Unit Maths Library
    Copyright (C) 2013-2014  Samuel Cowen
        www.camelsoftware.com
    Bug fixes and cleanups by Gé Vissers ([email protected])
    This program 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.
    This program 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/>.

This is GPL code ... how is this library then MIT? I would suggest ditching this code, I don't think it is really fully utilized any ways and you could just use a simple struct (or something) to hold the data ... JMHO

[ladyada]

thanks, if you can submit a PR for the swapped-in version that is freely licensable that would be awesome!

[walchko]

ok

[walchko]

#101 ok ... how is this? I tried not to change too much, just made it simpler since you didn't use all of the capabilities.

[walchko]

oh, should I have bumped the version number in the library.properties file?

[supercamel]

Hello, I'm the original author of that code. It's been floating around the internet in various forms for years and I have no problem changing it to MIT or similar license.

[ladyada]

@supercamel ok would you be ok publishing the new licensed code somewhere? we'll swap it in. thank you!!!

[supercamel]

Sure, here it is

https://github.com/supercamel/imumaths

[ladyada]

@caternuson at your convenience!

[caternuson]

Done with #111

Huge thanks to @supercamel for supporting this! ❤️