1 Eigen is primarily MPL2 licensed. See COPYING.MPL2 and these links: 2 http://www.mozilla.org/MPL/2.0/ 3 http://www.mozilla.org/MPL/2.0/FAQ.html 4 5 Some files contain third-party code under BSD or LGPL licenses, whence the other 6 COPYING.* files here. 7 8 If you want to guarantee that the Eigen code that you are #including is licensed 9 under the MPL2 and possibly more permissive licenses (like BSD), #define this 10 preprocessor symbol: 11 EIGEN_MPL2_ONLY 12 For example, with most compilers, you could add this to your project CXXFLAGS: 13 -DEIGEN_MPL2_ONLY 14 This will cause a compilation error to be generated if you #include any code that is 15 LGPL licensed. 16
