Configuration Error - Eigen - C++14

Hello,

I am trying to install mrtrix3 on windows using the following instructions : Building MRtrix3 from source — MRtrix3 3.0 documentation

However, I am encountering some issues when running “./configure”, I have the following error :

“MRtrix3 was unable to compile a test program involving Eigen3.”

When looking at the configure.log, I have the following information :

Eigen requires at least c++14 support.

The eigen version that was installed using pacman is : mingw-w64-x86_64-eigen3-5.0.1-1

Could you help me solve this issue ?

Many thanks,

Louise