FindEigen3.cmake has mixed EIGEN and EIGEN3 variables
A number of warnings regarding conflict between Eigen and Eigen3 naming in the cmake ..
process I think is due to our cmake_modules/FindEigen3.cmake
file being oddly coded.
In particular, our file mixes instances of EIGEN_...
variables with EIGEN3_...
variables.
Instead, the file in the eigen library is made exclusively with EIGEN3
entries:
See the original file here https://github.com/libigl/eigen/blob/master/cmake/FindEigen3.cmake
I think we should fix this.
Edited by Joan Solà Ortega