Will the new M1 chip affect cmdstanR?

General
6

A quick update:

A user reported that cmdstan via cmdstanr works OK after adding
CXX="arch -arch arm64e clang++" to the makefile flags.

So for cmdstan you need to add the following to to make/local and rebuild cmdstan
CXX="arch -arch arm64e clang++"

For cmdstanr you need to run

cmdstanr::cmdstan_make_local(cpp_options = list(CXX="arch -arch arm64e clang++"))
rebuild_cmdstan()

and then everything should work fine. The next cmdstan version will handle this automatically.

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