Eigen bundled

[Nico Schlömer]

I'm just trying to find the reason for MOAB build errors on Ubuntu and noticed a few odd things which I'll file as separate bug reports. Here's #1:

Eigen is bundled with MOAB.

Why not simply depend on it? Is there a fix in Eigen-dev that isn't in the latest release or something? Perhaps a patch on MOAB's version?

[Vijay M]

@nschloe The PR #290 [1] should fix this. However, we now do require BLAS/LAPACK as a dependency. You can still use Eigen3 interfaces using --with-eigen3=DIR option.

[1] https://bitbucket.org/fathomteam/moab/pull-requests/290

[Vijay M]

PR #290 resolves this issue