Friends, I don't have a Yosemite or El Capitan environment in which to validate changes.
There are two things I would try. 1. Does changing the few occurrences of `#include <stdlib.h>` to `#include <cstdlib>` fix it? I don't know that it will, but it seems like less work than 2. 2. Attack this TODO in flower/include/real.hh. using std::abs; // TODO: replace abs (x) with std::abs (x) and remove this I have more in my schedule today than a usual Sunday, but if I get time and I don't hear that anyone else has started turning these cranks, I will try later. Regards, — Dan