26 lines
971 B
Rust
26 lines
971 B
Rust
// When two instances of rustc are invoked in parallel, they
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// can conflict on their temporary files and overwrite each others',
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// leading to unsuccessful compilation. The -Z temps-dir flag adds
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// separate designated directories for each rustc invocation, preventing
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// conflicts. This test uses this flag and checks for successful compilation.
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// See https://github.com/rust-lang/rust/pull/83846
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use run_make_support::{fs_wrapper, rustc};
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use std::sync::{Arc, Barrier};
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use std::thread;
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fn main() {
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fs_wrapper::create_file("lib.rs");
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let barrier = Arc::new(Barrier::new(2));
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let handle = {
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let barrier = Arc::clone(&barrier);
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thread::spawn(move || {
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barrier.wait();
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rustc().crate_type("lib").arg("-Ztemps-dir=temp1").input("lib.rs").run();
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})
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};
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barrier.wait();
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rustc().crate_type("staticlib").arg("-Ztemps-dir=temp2").input("lib.rs").run();
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handle.join().expect("lib thread panicked");
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}
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