Problems with migration from Intel to M1 Mac

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I migrated my stuff on my old Intel Mac to a new M1 Mac instead of starting from scratch and I’m starting to think I should’ve just started from scratch. I git cloned a fresh version of cmdstanr, then did a make clean-all and a make build.

I get a few warnings about sprintf which I suspect are harmless but also the following warnings which seem less harmless

ld: warning: cannot export hidden symbol typeinfo for tbb::tbb_exception from task_group_context.o
ld: warning: cannot export hidden symbol typeinfo name for tbb::tbb_exception from task_group_context.o
ld: warning: cannot export hidden symbol typeinfo name for tbb::empty_task from arena.o
ld: warning: cannot export hidden symbol typeinfo for tbb::empty_task from arena.o
ld: warning: cannot export hidden symbol typeinfo name for tbb::empty_task from scheduler.o
ld: warning: cannot export hidden symbol typeinfo name for tbb::tbb_exception from scheduler.o
ld: warning: cannot export hidden symbol typeinfo for tbb::empty_task from scheduler.o
ld: warning: cannot export hidden symbol typeinfo for tbb::tbb_exception from scheduler.o
7 warnings generated.

There doesn’t seem to be any errors and I get the message that cmdstan 2.31 was successfully built, but when I go to compile a model I get the following error

% make examples/bernoulli/bernoulli
clang++ -std=c++1y -Wno-unknown-warning-option -Wno-tautological-compare -Wno-sign-compare -D_REENTRANT -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2020.3/include    -O3 -I src -I stan/src -I stan/lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.78.0 -I stan/lib/stan_math/lib/sundials_6.1.1/include -I stan/lib/stan_math/lib/sundials_6.1.1/src/sundials    -DBOOST_DISABLE_ASSERTS          -c -MT stan/src/stan/model/model_header.hpp.gch -MT stan/src/stan/model/model_header.d -MM -E -MG -MP -MF stan/src/stan/model/model_header.d stan/src/stan/model/model_header.hpp
clang++ -std=c++1y -Wno-unknown-warning-option -Wno-tautological-compare -Wno-sign-compare -D_REENTRANT -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2020.3/include    -O3 -I src -I stan/src -I stan/lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.78.0 -I stan/lib/stan_math/lib/sundials_6.1.1/include -I stan/lib/stan_math/lib/sundials_6.1.1/src/sundials    -DBOOST_DISABLE_ASSERTS          -c -MT src/cmdstan/main.o -MM -E -MG -MP -MF src/cmdstan/main.d src/cmdstan/main.cpp

--- Translating Stan model to C++ code ---
bin/stanc  --o=examples/bernoulli/bernoulli.hpp examples/bernoulli/bernoulli.stan
make: bin/stanc: Bad CPU type in executable
make: *** [examples/bernoulli/bernoulli.hpp] Error 1

I suspect that somewhere I still have some dynamic library or something that’s build for Intel even though I downloaded a fresh cmdstan and did a make clean. Maybe there are some dynamic libraries I need to rebuild?

Operating System: Monterey Version 12.5
Interface Version: cmdstan 2.31
Compiler/Toolkit:

% clang --version
Apple clang version 14.0.0 (clang-1400.0.29.202)
Target: arm64-apple-darwin21.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
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I realized my make version is built for the old architecture.

GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for i386-apple-darwin11.3.0

I tried reinstalling make via homebrew and it installs gmake. Homebrew then says

GNU "make" has been installed as "gmake".
If you need to use it as "make", you can add a "gnubin" directory
to your PATH from your bashrc like:

     PATH="$(brew --prefix)/opt/make/libexec/gnubin:$PATH"

I tried that and get that my make version is now the new one

GNU Make 4.4
Built for aarch64-apple-darwin21.6.0

but then still get the same error when trying to build bernoulli. Maybe because PATH isn’t being set permanently and only in this shell?

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Ok I’m up and running now. The problem didn’t have to do with make. Turns out I just needed Rosetta 2 to run stanc which I added with

softwareupdate --install-rosetta

This thread pretty much led me to the fix: Link error on Apple M1 - #6 by rok_cesnovar

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I assume it’s not crucial for the time being, but will stanc itself become an arm-native executable at some point?

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