[][src]Function rustc::session::config::opt::flag

pub fn flag(a: &'static str, b: &'static str, c: &'static str) -> RustcOptGroup
🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?