| error[E0580]: main function has wrong type | |
| --> $DIR/extern-main-fn.rs:1:1 | |
| | | |
| LL | extern fn main() {} | |
| | ^^^^^^^^^^^^^^^^ expected "Rust" fn, found "C" fn | |
| | | |
| = note: expected type `fn()` | |
| found type `extern "C" fn()` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0580`. |