AvogadroUse.cmake now checks for Eigen3 before checking for Eigen2.

[psavery]

This is needed for some external plugins in light of some recent Eigen3 updates to avogadro.

[ghutchis]

I assume this solves the problem you mentioned? Makes sense.

[psavery]

Yep! My extension used AvogadroUse.cmake to set up some of the include
directories and such. My extension was using eigen 2 instead of eigen3,
which was resulting in the symbol errors during runtime. I think this fixes
it.

By the way, have you noticed that since incorporating Eigen3 into avogadro
more, there are a LOT more warnings during compilation? Most of them are
enumeral mismatches in Eigen3 (and a lot of the warnings carry over to my
extension's compilation as well). I know they aren't essential, but it
might be nice if we could figure out how to eliminate some of them.

On Wed, Aug 5, 2015 at 5:32 PM, Geoff Hutchison notifications@github.com
wrote:

I assume this solves the problem you mentioned? Makes sense.

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