A Note on Downloads for Apple's MacOS


	Apple now marks packages (tarballs and the like) as "contaminated" 
when downloaded from a browser (they want developers distributing software 
from their App Store). But the packages can be safely downloaded with these 
commands from a terminal window without any problem:

For x64 PreBuilt:
curl -O https://acdl.mit.edu/ESP/PreBuilts/ESP122MAC.tgz -o ESP122MAC.tgz

For M1 PreBuilt:
curl -O https://acdl.mit.edu/ESP/PreBuilts/ESP122M1.tgz -o ESP122M1.tgz

For build from source:
curl -O https://acdl.mit.edu/ESP/ESP.tgz -o ESP.tgz
  -- and (for Intel x64) --
curl -O https://acdl.mit.edu/ESP/OCC760osx64.tgz -o OCC760osx64.tgz
  -- or  (for Apple M1)  -- 
curl -O https://acdl.mit.edu/ESP/OCC760macM1.tgz -o OCC760macM1.tgz