Run on native Linux with the GLib development headers and the normal Rust toolchain. This isolated harness selects searchi's exact vendored GLib crate.

Before building, verify all upstream bytes and the exact patch against the official crate archive already available in the Cargo download cache:

python tools/glib-regression/verify_vendor.py /path/to/glib-0.18.5.crate

This reads the archive without extracting it or changing the Cargo cache and rejects extra, missing or unexpectedly changed vendor files.

cargo test --manifest-path tools/glib-regression/Cargo.toml --release --locked --jobs 1

The release profile is essential: the upstream defect was sensitive to compiler optimization. Tests exercise all five affected iterator operations, Unicode, empty arrays, exhaustion and exact-size behavior. A compile-fail doctest verifies borrowed strings cannot outlive their owning variant. No embeddings, media decoders, network inference or GPU providers are used.

This harness does not replace a native desktop build/interaction check or an advisory audit. Record actual execution and selected package identity before calling the local backport validated.