I am trying to build some simple test cases of Rcpp. One of the simplest I can think of is below. #include <Rcpp.h> int main () { auto i = Rcpp::IntegerVector::create(1,2); } This compiles fine and links against libR, but segmentation faults when run. My test system is a Mac with clang++. Is there an obvious reason this should not work? Cheers, Brook