On 30 November 2020 at 11:27, Duncan Murdoch wrote: | I think that C++11 isn't a requirement of RcppArmadillo, it's an option It is as of the 10.* series of Armadillo and hence RcppArmadillo 0.10.* Dirk -- https://dirk.eddelbuettel.com | @eddelbuettel | edd using debian.org