cargo doc does not seem to respect `RUSTFLAGS`

[yongqli]

Problem

In the following repo:
https://github.com/yongqli/bug-test

Running

RUSTFLAGS="-L/opt/homebrew/opt/libomp/lib" cargo build --release

on macOS works, but running

RUSTFLAGS="-L/opt/homebrew/opt/libomp/lib" cargo test --doc

fails with linker error.

Tested on cargo 1.71

Steps

No response

Possible Solution(s)

No response

Notes

On macOs you may need to install dependencies by running brew install libomp.

Version

No response

[yongqli]

Looks like this was the issue: #4737

[weihanglo]

Have you tried RUSTDOCFLAGS?

[yongqli]

Is there a way to pass linker arguments to cargo doc based on target triple? Only rustflags is listed under [target.<triple>]: https://doc.rust-lang.org/cargo/reference/config.html#configuration-format rustdocflags is not accepted.

[yongqli]

Have you tried RUSTDOCFLAGS?

Yes, RUSTDOCFLAGS worked.

[weihanglo]

Is there a way to pass linker arguments to cargo doc based on target triple? Only rustflags is listed under [target.<triple>]: https://doc.rust-lang.org/cargo/reference/config.html#configuration-format rustdocflags is not accepted.

No. And afaik no one requested for that. (I've fixed an issue around btw #11323)

The request does look different from this issue you've tried to fix. If possible, to make it clear, could you open a new one and close this?

[weihanglo]

Okay. Maybe don't need to open a new one. In #6460 there are some upstream issue linked need to deal with first. I'll close this now. If you have different thoughts, please let use know. Thank you :)

EDIT: see also #7040