conflict with open3d lib which depend on eigen #232

in cmake file,  add lib  (Open3D::Open3D  xtensor xtensor-blas) ,call function "linalge.lstsq()" compiled ok, but run failed, with lapack error.
when add lib (xtensor xtensor-blas Open3D::Open3D) ,run ok. 
if eigen and xtensor-blas have confict ?