Attempting to compile CarpetLib with gcc 4.8 leads to the error
/Users/ian/Cactus/arrangements/Carpet/CarpetLib/src/prolongate_3d_rf2.cc:501:56: error: 'static_assert' was not declared in this scope
I had not come across static_assert before. Apparently it is a C++11 feature. gcc 4.6 was able to compile it, but it looks like gcc 4.8 is stricter. Do we want to require -std=c++11, or should we avoid C++11 features for now?