CXX_STD = CXX17

# The reader and writer parse / format on a std::thread pool.
# Optimisation level is left to R's default so the build stays portable;
# set -O3 in your own ~/.R/Makevars if you want the last few percent.
PKG_CPPFLAGS = -DBT_HAVE_THREADS
PKG_LIBS = -lpthread
