libsoliton/soliton_capi/build.rs

/// Build script for soliton_capi.
///
/// `soliton.h` is checked into the repo and verified by a dev-dependency
/// test (`header_up_to_date` in `tests/capi_tests.rs`). cbindgen runs
/// only during `cargo test`, not during normal builds — this eliminates
/// ~30 build-time transitive dependencies from the supply chain attack
/// surface.
fn main() {
    // Re-run if the header is deleted so cargo knows to rebuild.
    println!("cargo:rerun-if-changed=soliton.h");
}