"Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’" - https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-debian-clang/diffrprojects-00check.html - https://stackoverflow.com/questions/42313373/r-cmd-check-note-found-no-calls-to-r-registerroutines-r-usedynamicsymbols
