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// Original file:
//   https://github.com/rust-windowing/glutin/blob/
//   0433af9018febe0696c485ed9d66c40dad41f2d4/glutin-winit/build.rs
//
// Copyright © 2022 Kirill Chibisov
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the “Software”), to deal
// in the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

// Keep this in sync with glutin's build.rs.

use cfg_aliases::cfg_aliases;

fn main()
{
    // Setup alias to reduce `cfg` boilerplate.
    cfg_aliases! {
        // Systems.
        android_platform: { target_os = "android" },
        wasm_platform: { target_family = "wasm" },
        macos_platform: { target_os = "macos" },
        ios_platform: { target_os = "ios" },
        apple: { any(ios_platform, macos_platform) },
        free_unix: { all(unix, not(apple), not(android_platform)) },

        // Native displays.
        x11_platform: { all(free_unix, not(wasm_platform)) },
        wayland_platform: { all(free_unix, not(wasm_platform)) },
        // x11_platform: { all(feature = "x11", free_unix, not(wasm_platform)) },
        // wayland_platform: { all(feature = "wayland", free_unix, not(wasm_platform)) },

        // Backends.
        egl_backend: {
            all(any(windows, unix), not(apple), not(wasm_platform))
        },
        glx_backend: { all(x11_platform, not(wasm_platform)) },
        wgl_backend: { all(windows, not(wasm_platform)) },
        cgl_backend: { all(macos_platform, not(wasm_platform)) },

        // Backends.
        // egl_backend: {
        //     all(feature = "egl", any(windows, unix), not(apple), not(wasm_platform))
        // },
        // glx_backend: { all(feature = "glx", x11_platform, not(wasm_platform)) },
        // wgl_backend: { all(feature = "wgl", windows, not(wasm_platform)) },
        // cgl_backend: { all(macos_platform, not(wasm_platform)) },
    }
}