- The native arm64 client tries to launch a separate helper program that
is compiled only for the x86_64 architecture. If successful, this means
that Rosetta2 is installed and the host can run x86_64 applications, so
x86_64-apple-darwin is added as an alternative platform. The helper
program 'detect_rosetta_cpu' gets the feature string for the emulated
x86_64 CPU (e.g. SSE), and writes it to a file in the BOINC data
directory. If this file exists, this file is read in
hostinfo_unix_mac() and the features of the meulated CPU are
added to that of the native CPU.
barton26