Macro cfg_rust_features::emit

macro_rules! emit {
    ($features_names:expr) => { ... };
}

Helper that does the common basic use of this crate. Suitable as the body of the main function of a build script.

Calls CfgRustFeatures::emit_multiple on a temporary instance with the given features’ names. Also calls emit_rerun_if_changed_file with the name of the file in which this macro was invoked.

Examples

A build.rs can be as simple as:

fn main() {
    cfg_rust_features::emit!(["iter_zip"]).unwrap();
}