// SPDX-License-Identifier: LGPL-2.1-only
// Copyright (C) 2026 Liberux Labs, S. L. <info@liberux.net>

// `cfg( backend )` marks the runtime behind `ltk::run`, which builds when some platform backend does. Each backend defines `ltk::run` and the native platform types, so only one may be enabled.
fn main()
{
	println!( "cargo::rustc-check-cfg=cfg(backend)" );
	let wayland = std::env::var_os( "CARGO_FEATURE_WAYLAND" ).is_some();
	let android = std::env::var_os( "CARGO_FEATURE_ANDROID" ).is_some();
	if wayland && android
	{
		panic!( "ltk: the `wayland` and `android` features are exclusive; build for Android with `default-features = false, features = [ \"android\" ]`" );
	}
	if wayland || android
	{
		println!( "cargo::rustc-cfg=backend" );
	}
}