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install: clarify "on Intel" error if under Rosetta 2. #10093

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Dec 22, 2020
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install: clarify "on Intel" error if under Rosetta 2. #10093

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10 changes: 8 additions & 2 deletions Library/Homebrew/install.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,14 @@ def perform_build_from_source_checks(all_fatal: false)
end

def check_prefix
if Hardware::CPU.intel? && HOMEBREW_PREFIX.to_s == HOMEBREW_MACOS_ARM_DEFAULT_PREFIX
odie "Cannot install in Homebrew on Intel processor in ARM default prefix (#{HOMEBREW_PREFIX})!"
if (Hardware::CPU.intel? || Hardware::CPU.in_rosetta2?) &&
HOMEBREW_PREFIX.to_s == HOMEBREW_MACOS_ARM_DEFAULT_PREFIX
configuration = if Hardware::CPU.in_rosetta2?
"on Intel processor"
else
"under Rosetta 2"
end
odie "Cannot install in Homebrew #{configuration} in ARM default prefix (#{HOMEBREW_PREFIX})!"
elsif Hardware::CPU.arm? && HOMEBREW_PREFIX.to_s == HOMEBREW_DEFAULT_PREFIX
odie <<~EOS
Cannot install in Homebrew on ARM processor in Intel default prefix (#{HOMEBREW_PREFIX})!
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