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brew: re-exec under native arch if requested

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This commit is contained in:
Francois-Xavier Coudert 2020-12-04 17:59:44 +01:00
parent cb38fe6e3f
commit 961f4cc14f
1 changed files with 10 additions and 0 deletions
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10
Library/Homebrew/brew.sh
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@ -10,6 +10,16 @@ case "$HOMEBREW_SYSTEM" in
Linux) HOMEBREW_LINUX="1" ;;
esac
# If we're running under macOS Rosetta 2, and it was requested by setting
# HOMEBREW_CHANGE_ARCH_TO_ARM (for example in CI), then we re-exec this
# same file under the native architecture
if [[ "$HOMEBREW_CHANGE_ARCH_TO_ARM" = "1" ]] && \
[[ "$HOMEBREW_MACOS" = "1" ]] && \
[[ "$(sysctl -n hw.optional.arm64 2>/dev/null)" = "1" ]] && \
[[ "$(sysctl -n sysctl.proc_translated 2>/dev/null)" = "1" ]]; then
exec arch -arm64e "$HOMEBREW_BREW_FILE" "$@"
fi
# Where we store built products; a Cellar in HOMEBREW_PREFIX (often /usr/local
# for bottles) unless there's already a Cellar in HOMEBREW_REPOSITORY.
if [[ -d "$HOMEBREW_REPOSITORY/Cellar" ]]