[ruby-core:111313] Fwd: Building Ruby 3.2 with YJIT enabled

Hi ruby-core, it seems like sending an email from our company's address to
this ruby-core mailing list breaks its DKIM signatures, which result in
being classified as spam. So I'm forwarding Maxime's email to this from my
personal email in case you missed it. Enjoy!

---------- Forwarded message ---------

Hello everyone,

In the last year we=E2=80=99ve ported YJIT to Rust, and YJIT also now suppo=
rts
Arm64 CPUs (Mac M1/M2, AWS Graviton, Raspberry Pi & more) in addition to
x86-64 on Mac/Linux and BSD.

I=E2=80=99m writing this because, as we near the 3.2 release =F0=9F=8E=81, =
I really hope that
YJIT will be available =E2=9C=A8 as part of precompiled Ruby packages and R=
uby
binaries, as much as possible.

In order to build CRuby with YJIT enabled, on a supported platform, you
should only need to install rustc >=3D 1.58.0 before running the CRuby
./configure script. That is all. The configure script should auto-detect
rustc and enable building YJIT.

Some instructions for installing rustc on various platforms:

# Cross-platform setup script for the Rust toolchain

$ curl --proto '=3Dhttps' --tlsv1.2 -sSf https://sh.rustup.rs | sh

or

# On Debian-based distros:

$ sudo apt install rustc

You can check that your ruby binary has been built with YJIT by running:

# should contain the string +YJIT

$ ruby --yjit -v

Feel free to reach out if you encounter any issues.

Happy Holidays! =F0=9F=8E=85=F0=9F=8E=84=F0=9F=8E=81

- Maxime & the YJIT team
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