I've done some tests on armv7 and libatomic is not needed.

Were you able to build rust for armv7 without libatomic?

https://pkg-status.freebsd.org/beefy16/data/131amd64-default/f5ce9b7ee067/logs/errors/armv7-rust-bootstrap-1.65.0.log fails with the same libatomic issue as powerpc.

In D37467#851896, @pkubaj wrote:

Were you able to build rust for armv7 without libatomic?

lang/rust works on armv7 without libatomic

In D37467#852172, @pkubaj wrote:

armv7-rust-bootstrap-1.65.0.log14 MBDownload

Fails for me as well.

https://cgit.freebsd.org/ports/tree/lang/rust/files/patch-compiler_rustc__llvm_build.rs#n27 is not needed on armv7

The error is clearly the same as on powerpc.

In D37467#852552, @pkubaj wrote:

The error is clearly the same as on powerpc.

libatomic *is not needed* for armv7, the patch you submitted in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267622 *is not needed* for armv7.

target.starts_with("arm")

can be removed.

Then how can you explain the Rust build issue on armv7?

In D37467#852616, @pkubaj wrote:

Then how can you explain the Rust build issue on armv7?

same as https://github.com/rust-lang/rust/pull/91284/files#diff-d2de2bcb5d771ce072eb6f81aafd33956db4251351050175b15eb6121d92232f ?

You could have explained that first.