rust/tests/run-make/linkage-attr-on-static/rmake.rs

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// #[linkage] is a useful attribute which can be applied to statics to allow
// external linkage, something which was not possible before #18890. This test
// checks that using this new feature results in successful compilation and execution.
// See https://github.com/rust-lang/rust/pull/18890
//@ ignore-cross-compile
// Reason: the compiled binary is executed
use run_make_support::{build_native_static_lib, run, rustc};
fn main() {
build_native_static_lib("foo");
rustc().input("bar.rs").run();
run("bar");
}