| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![allow(unused_imports)] |
| |
| // ignore-windows |
| // ignore-wasm32-bare no libc to test ffi with |
| |
| // issue-53200 |
| |
| #![feature(rustc_private)] |
| extern crate libc; |
| |
| use std::env; |
| |
| // FIXME: more platforms? |
| #[cfg(target_os = "linux")] |
| fn main() { |
| unsafe { libc::clearenv(); } |
| assert_eq!(env::vars().count(), 0); |
| } |
| |
| #[cfg(not(target_os = "linux"))] |
| fn main() {} |
