| Eigen is primarily MPL2 licensed. See COPYING.MPL2 and these links: |
| http://www.mozilla.org/MPL/2.0/ |
| http://www.mozilla.org/MPL/2.0/FAQ.html |
| |
| Some files contain third-party code under BSD or LGPL licenses, whence the other |
| COPYING.* files here. |
| |
| All the LGPL code is either LGPL 2.1-only, or LGPL 2.1-or-later. |
| For this reason, the COPYING.LGPL file contains the LGPL 2.1 text. |
| |
| If you want to guarantee that the Eigen code that you are #including is licensed |
| under the MPL2 and possibly more permissive licenses (like BSD), #define this |
| preprocessor symbol: |
| EIGEN_MPL2_ONLY |
| For example, with most compilers, you could add this to your project CXXFLAGS: |
| -DEIGEN_MPL2_ONLY |
| This will cause a compilation error to be generated if you #include any code that is |
| LGPL licensed. |
