1 // run-pass
2 
3 #![allow(unused_imports)]
4 
5 // ignore-windows
6 // ignore-wasm32-bare no libc to test ffi with
7 
8 // issue-53200
9 
10 #![feature(rustc_private)]
11 extern crate libc;
12 
13 use std::env;
14 
15 // FIXME: more platforms?
16 #[cfg(target_os = "linux")]
main()17 fn main() {
18     unsafe { libc::clearenv(); }
19     assert_eq!(env::vars().count(), 0);
20 }
21 
22 #[cfg(not(target_os = "linux"))]
main()23 fn main() {}
24