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// Check extern items cannot be const + `rustfix` suggests using
// extern static.
//
// #54388: an unused reference to an undefined static may or may not
// compile. To sidestep this by using one that *is* defined.
// run-rustfix
// ignore-wasm32-bare no external library to link to.
// ignore-asmjs wasm2js does not support source maps yet
// compile-flags: -g
#![feature(rustc_private)]
extern crate libc;
#[link(name = "rust_test_helpers", kind = "static")]
extern "C" {
const rust_dbg_static_mut: libc::c_int; //~ ERROR extern items cannot be `const`
}
fn main() {
// We suggest turning the (illegal) extern `const` into an extern `static`,
// but this also requires `unsafe` (a deny-by-default lint at comment time,
// future error; Issue #36247)
unsafe {
let _x = rust_dbg_static_mut;
}
}
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