macOS: infraternal-shim portability #300

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opened 2026-11-02 01:15:13 +00:00 by kayg · 1 comment

kayg commented

2026-11-02 01:15:13 +00:00

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Scope

Make the infraternal-shim crate compile for macOS with the smallest platform-specific changes. This issue tracks compile portability only; it does not authorize implementing macOS session behavior.

Evidence

On infraternal-macos-01-std (macOS 26.5.2, arm64), native Cargo for the J80 daemon reached Rust compilation and failed in infraternal-shim before the Mesh registration test:

session.rs: unresolved nix::sys::signalfd and nix::sys::socket::sockopt::PeerCredentials.
pty.rs: unistd::getgrouplist and unistd::setgroups are unavailable under the selected target/features.
pty.rs: nix::libc::SIGRTMAX is unavailable on Darwin.
pty.rs: Darwin flistxattr requires a fourth flags argument.
pty.rs: Darwin ioctl expects a wider request type for TIOCSCTTY.

Build log: /tmp/J80-registry-red-2.log on the Mac VM.

Requested follow-up

Determine the narrowest compile-time boundary for Linux session/shim operations, or add minimal Darwin cfgs where the code is shared. Do not claim that sessions work on macOS unless their runtime behavior is separately implemented and tested.

## Scope Make the infraternal-shim crate compile for macOS with the smallest platform-specific changes. This issue tracks compile portability only; it does not authorize implementing macOS session behavior. ## Evidence On `infraternal-macos-01-std` (macOS 26.5.2, arm64), native Cargo for the J80 daemon reached Rust compilation and failed in `infraternal-shim` before the Mesh registration test: - `session.rs`: unresolved `nix::sys::signalfd` and `nix::sys::socket::sockopt::PeerCredentials`. - `pty.rs`: `unistd::getgrouplist` and `unistd::setgroups` are unavailable under the selected target/features. - `pty.rs`: `nix::libc::SIGRTMAX` is unavailable on Darwin. - `pty.rs`: Darwin `flistxattr` requires a fourth flags argument. - `pty.rs`: Darwin `ioctl` expects a wider request type for `TIOCSCTTY`. Build log: `/tmp/J80-registry-red-2.log` on the Mac VM. ## Requested follow-up Determine the narrowest compile-time boundary for Linux session/shim operations, or add minimal Darwin cfgs where the code is shared. Do not claim that sessions work on macOS unless their runtime behavior is separately implemented and tested.

kayg referenced this issue

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