Rstan on Apple M2 chip

Interfaces
11

It looks like your Makevars file was configured under an Intel Mac installation, which is why it has the -arch x86_64, so given that your current R installation is using Apple Silicon (aarch64) we’ll try resetting your Makevars.

Can you run:

cat("CXX14FLAGS += -O3 -arch arm64 -ftemplate-depth-256",
    file = "~/.R/Makevars", sep = "\n", append = FALSE)

And then try the rstan example model again?

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