Eigen 3.3.8 release candidate

[SteveBronder]

Just an fyi there's a release candidate for Eigen 3.3.8 available

Change Log

[eddelbuettel]

Would be a nice exercise for a volunteer to package up and to carry our (accumulated and still needed patches) forward. We could put a RC package in a drat for us all to noodle over. Else it may have to wait til release.

[SteveBronder]

I think I could do that this week or next

[eddelbuettel]

Great. This directory may help: https://github.com/RcppCore/RcppEigen/tree/master/patches

Having a rc package would help with rev.deps. I can turn on the usual machinery if we have something.

[rok-cesnovar]

The release was published in October. Is there any timeline on when Eigen 3.3.8 will be available in RcppEigen? Let us know if we (Stan devs) can help with the upgrade. Thanks!

[eddelbuettel]

It would be great if one or more you could work on that. Happy to provide guidance, and (towards the end) run reverse-depends.

It is a bit more involved than just copying files in as the patches/ directory shows, but not that much and R CMD check (especially under r-devel should be pretty clear what it dislikes).

PS Else with some luck I may get to it this weekend.