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os/mac/hardware: clarify Rosetta 2 situation with a comment. #10161

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Dec 28, 2020
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os/mac/hardware: clarify Rosetta 2 situation with a comment. #10161

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7 changes: 7 additions & 0 deletions Library/Homebrew/extend/os/mac/hardware.rb
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Expand Up @@ -7,6 +7,13 @@ module Hardware
def self.oldest_cpu(version = MacOS.version)
if CPU.arch == :arm64
:arm_vortex_tempest
# TODO: this cannot be re-enabled until either Rosetta 2 supports AVX
# instructions in bottles or Homebrew refuses to run under Rosetta 2 (when
# ARM support is sufficiently complete):
# https://github.com/Homebrew/homebrew-core/issues/67713
#
# elsif version >= :big_sur
# :ivybridge
elsif version >= :mojave
:nehalem
else
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