1 files changed, 63 insertions, 0 deletions
diff --git a/engine/build.rs b/engine/build.rs
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index 0000000..58029fc
--- /dev/null
+++ b/engine/build.rs
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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)) },
+    }
+}