Run x86 Apps (including homebrew) in the Terminal on Apple Silicon

Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by xenadu02 on Wednesday November 18, 2020 @03:52AM (#25134535)

Stickiness of architecture is a change from how Rosetta worked in the PowerPC to Intel transition: in macOS Big Sur child processes will prefer the arch of the parent process if one is available to maximize compatibility. So for example launching x86_64 sh will cause a python invocation from that shell to also be x86_64.

The "arch" utility is your escape hatch to switch the preferred arch for the spawned process and all of its children.

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Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by api on Wednesday November 18, 2020 @08:36AM (#25136522)

Would be easy to make iTerm2 launch arch -x86_64 <shell>

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Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by jen20 on Wednesday November 18, 2020 @10:16AM (#25137643)

I haven't tried this (don't have an M1 to hand!) but:

iterm2 -> Preferences -> Profiles -> General

Change the "Login Shell" drop down to "Command" and then enter `arch -x86_64 /usr/local/bin/zsh` or whatever your shell is.

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Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by 1f60c on Wednesday November 18, 2020 @10:38AM (#25137942)

Would `arch -x86_64 $SHELL` work?

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Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by dormento on Wednesday November 18, 2020 @12:21PM (#25139486)

In theory yes, since it inherits the shell env from the parent.

Haven't got the $$$ to test though.

EDIT: you could also craft an oneliner if $SHELL is not defined, something like:

`ps -T $$ | awk 'NR==2{print $NF}' | arch -x86_64 $0`

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Re:Run x86 Apps (including homebrew) in the Terminal on Appl... by cdalar on Monday November 23, 2020 @02:59PM (#25191027)

Just tried and it works :) .. Nice.

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