* installing *source* package ‘cpp11armadillo’ ...
** package ‘cpp11armadillo’ successfully unpacked and MD5 sums checked
** using staged installation
R was not built as a library
In file included from /data/gannet/ripley/R/test-dev/cpp11/include/cpp11.hpp:3,
                 from ./inst/include/r_messages.hpp:3,
                 from ./inst/include/armadillo.hpp:28,
                 from conftest.cpp:1:
/data/gannet/ripley/R/test-dev/cpp11/include/cpp11/R.hpp:19:10: fatal error: R_ext/Boolean.h: No such file or directory
   19 | #include "R_ext/Boolean.h"
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.
Armadillo is not compatible with the C++ compiler used by R.
ERROR: configuration failed for package ‘cpp11armadillo’
* removing ‘/data/gannet/ripley/R/packages/tests-devel/cpp11armadillo.Rcheck/cpp11armadillo’