// Copyright 2012 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // compile-flags: --cfg foo #[cfg(foo, bar)] // foo AND bar fn foo() {} fn main() { foo(); //~ ERROR unresolved name: `foo`. }