WASI build fails on both SDK 20 and 21 (Mac OS)

[thesuhas]

Bug report

Bug description:

# Add a code block here, if required

On trying to build CPython for wasmtime with both SDK 20 and 21, I get an error on running: python Tools/wasm/wasi.py configure-host
Error:

I've tried modifying the env vars to clang and tried to replace it with gcc as well. Still fails. Any pointers?

CPython versions tested on:

3.11

Operating systems tested on:

macOS

Linked PRs

• GH-114736: Use WASI SDK 21 #116771

[brettcannon]

Are you trying to build Python 3.11 using Tools/wasm/wasi.py (based on the "versions tested")? If so, that script has not been tested on anything but main, so you would need to use https://github.com/python/cpython/blob/3.11/Tools/wasm/wasm_build.py instead.

I've also only made sure a WASI build works under WASI-SDK 20 w/ wasmtime under preview 1 so far, so 21 isn't confirmed to work yet.

[brettcannon]

You can also look at config.log to see it it says anything interesting.

[brettcannon]

And did you try using wasi.py build first? I.e. did the build Python steps succeed and is there a specific reason you're doing it in discrete steps?

[thesuhas]

Hey sorry for the late reply. I did try wasi.py build first and it failed so I ran the steps individually. I'll re-run it and check the config.log and get back to you!

[hugovk]

Can this be closed now #116771 has been merged?

[brettcannon]

Can this be closed now #116771 has been merged?

Yep! I was waiting for the PR to merge (the macOS runners were taking so long I had to log off before CI finished).