Ludovic Courtès writes: > Ricardo Wurmus skribis: > >> * gnu/packages/algebra.scm (eigen)[source]: Do not build the tests for >> unsupported features, but include the files. > > I was reluctant about installing those, but IIRC they go to > $includedir/…/unsupported, right? In that case, it’s up to users to > explicitly #include from unsupported/ so it’s probably fine. That’s correct. As it turns out, this alone is not sufficient for TensorFlow. They have some additional Eigen source files that they bundle with the TensorFlow sources, which must be present at build time. -- Ricardo