Apple M1 CRAN checks

If there was a response to the "how can I test it out" part of this 
question then I missed it. Can anyone point to a Win-builder like site 
for testing on M1mac, or to the M1mac results from testing packages 
already on CRAN?  They still do not seem to be on the CRAN daily site. 
Even a link to the 'Additional issues' on M1 Mac on the results pages 
would be helpful because it does not seem to be in an obvious place. I 
am trying to respond to a demand to relax or remove some package testing 
that fails because M1mac gives results outside my specified tolerances.

The tests in question (in package EvalEst) have been used since very 
early R versions (0.16 circa 1995), and used on Splus prior to that. 
There has been a need to adjust tolerances occasionally, but they have 
been stable for a long time (more than 20 years I believe). Since these 
tests date from a time when simple double precision was the norm, the 
tolerances are already fairly relaxed so I hesitate to adjust them with 
actually examining the results.

Paul Gilbert

I noticed CRAN is now doing checks against Apple M1, and some packages are
failing including a dependency I use.

Is building on M1 now a requirement, or can the check be ignored? If it's a
requirement, how can one test it out?

Travers

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