rust/tests/run-make/link-arg/rmake.rs

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// In 2016, the rustc flag "-C link-arg" was introduced - it can be repeatedly used
// to add single arguments to the linker. This test passes 2 arguments to the linker using it,
// then checks that the compiler's output contains the arguments passed to it.
// This ensures that the compiler successfully parses this flag.
// See https://github.com/rust-lang/rust/pull/36574
use run_make_support::rustc;
fn main() {
// We are only checking for the output of --print=link-args,
// rustc failing or succeeding does not matter.
let out = rustc()
.input("empty.rs")
.link_arg("-lfoo")
.link_arg("-lbar")
.print("link-args")
.run_unchecked();
out.assert_stdout_contains("lfoo");
out.assert_stdout_contains("lbar");
assert!(out.stdout_utf8().ends_with('\n'));
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}