Simon, Your Makevars [1] is very standard so I would suspect it may be the actions setup for macOS. Rcpp is still used by a large number of packages all of which appear to build just fine on macOS (as eg evidenced by the CRAN checks) if and when everything is setup correctly.
Dirk [1] https://github.com/simonsays1980/finmix/blob/documentation/src/Makevars -- https://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel