NixOS/nixpkgs — pull request #2423 by giogadi (2014-04-27 22:08:13+00:00)
Title: eigen: upgrading version to 3.2.1

Updating to the latest version of Eigen, 3.2.1, which has lots of bugfixes.

This was my excuse to learn a bit about Nix's package maintenance system, so feel free to let me know if I've done anything wrong!