Rosetta2 and supported_archs

[Joshua Root]

On 2021-1-14 06:41 , Craig Treleaven wrote:
> Am I incorrect that Rosetta2 does NOT require library dependencies to be the same arch as the main program?  I thought I understood that an X86_64 program could call an arm64 library (and vice versa) and that Rosetta2 would do the right thing at run time.  If so, MacPorts does not have to supply a mult-arch/universal library.

Not according to 
<https://developer.apple.com/documentation/apple_silicon/about_the_rosetta_translation_environment>.

- Josh