Document Rosetta 2 as a requirement for installation on Apple silicon (M1, M2, M3) #4368
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The installer also offers to launch the installation, and gives the required command for manual installation.
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Rosetta 2 is needed to translate
x86_64executables (which we rely on) so they can run on thearm64architecture of Apple silicon chips. This PR documents this requirement on the Mac installation page for SCT and in the SCT installer, which:true) while requesting thex86_64architecture;The new code mirrors the check for
gccwhich appears right below in the installer.The test uses the
archcommand, which has different functionality on Linux than on macOS; see the linux manual page forarchand an old macOS manual page forarch. I checked on a recent M2 laptop, and thearchcommand now also recognizesarm64,arm64e, andx86_64has architecture names, but otherwise seems to still work the same way.Fixes #4342.