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()17fn main() { 18 unsafe { libc::clearenv(); } 19 assert_eq!(env::vars().count(), 0); 20 } 21 22 #[cfg(not(target_os = "linux"))] main()23fn main() {} 24