34 lines
1.2 KiB
Rust
34 lines
1.2 KiB
Rust
extern crate autocfg;
|
|
|
|
use std::env;
|
|
|
|
/// Tests that autocfg uses the RUSTFLAGS or CARGO_ENCODED_RUSTFLAGS
|
|
/// environment variables when running rustc.
|
|
#[test]
|
|
fn test_with_sysroot() {
|
|
// Use the same path as this test binary.
|
|
let dir = env::current_exe().unwrap().parent().unwrap().to_path_buf();
|
|
env::set_var("OUT_DIR", &format!("{}", dir.display()));
|
|
|
|
// If we have encoded rustflags, they take precedence, even if empty.
|
|
env::set_var("CARGO_ENCODED_RUSTFLAGS", "");
|
|
env::set_var("RUSTFLAGS", &format!("-L {}", dir.display()));
|
|
let ac = autocfg::AutoCfg::new().unwrap();
|
|
assert!(ac.probe_sysroot_crate("std"));
|
|
assert!(!ac.probe_sysroot_crate("autocfg"));
|
|
|
|
// Now try again with useful encoded args.
|
|
env::set_var(
|
|
"CARGO_ENCODED_RUSTFLAGS",
|
|
&format!("-L\x1f{}", dir.display()),
|
|
);
|
|
let ac = autocfg::AutoCfg::new().unwrap();
|
|
assert!(ac.probe_sysroot_crate("autocfg"));
|
|
|
|
// Try the old-style RUSTFLAGS, ensuring HOST != TARGET.
|
|
env::remove_var("CARGO_ENCODED_RUSTFLAGS");
|
|
env::set_var("HOST", "lol");
|
|
let ac = autocfg::AutoCfg::new().unwrap();
|
|
assert!(ac.probe_sysroot_crate("autocfg"));
|
|
}
|