Merge pull request #18 from rust-windowing/x11-wayland-features

Add feature flags for `x11` and `wayland`

Author: ids1024

Cargo.toml

@@ -11,15 +11,20 @@ keywords = ["framebuffer", "windowing"]
 categories = ["game-development", "graphics", "gui", "multimedia", "rendering"]
 exclude = ["examples"]
 
+[features]
+default = ["x11", "wayland"]
+wayland = ["wayland-backend", "wayland-client", "nix"]
+x11 = ["x11-dl"]
+
 [dependencies]
 thiserror = "1.0.30"
 raw-window-handle = "0.5.0"
 
 [target.'cfg(any(target_os = "linux", target_os = "freebsd"))'.dependencies]
-nix = "0.26.1"
-wayland-backend = {version = "0.1.0-beta.14", features = ["client_system"]}
-wayland-client = {version = "0.30.0-beta.14"}
-x11-dl = "2.19.1"
+nix = { version = "0.26.1", optional = true }
+wayland-backend = { version = "0.1.0-beta.14", features = ["client_system"], optional = true }
+wayland-client = { version = "0.30.0-beta.14", optional = true }
+x11-dl = { version  = "2.19.1", optional = true }
 
 [target.'cfg(target_os = "windows")'.dependencies.windows-sys]
 version = "0.42.0"

src/lib.rs

@@ -9,9 +9,9 @@ extern crate core;
 mod win32;
 #[cfg(target_os = "macos")]
 mod cg;
-#[cfg(any(target_os = "linux", target_os = "freebsd"))]
+#[cfg(all(feature = "x11", any(target_os = "linux", target_os = "freebsd")))]
 mod x11;
-#[cfg(any(target_os = "linux", target_os = "freebsd"))]
+#[cfg(all(feature = "wayland", any(target_os = "linux", target_os = "freebsd")))]
 mod wayland;
 #[cfg(target_arch = "wasm32")]
 mod web;
@@ -49,9 +49,9 @@ impl GraphicsContext {
     ///    lifetime of the GraphicsContext
     pub unsafe fn from_raw(raw_window_handle: RawWindowHandle, raw_display_handle: RawDisplayHandle) -> Result<Self, SwBufError> {
         let imple: Box<dyn GraphicsContextImpl> = match (raw_window_handle, raw_display_handle) {
-            #[cfg(any(target_os = "linux", target_os = "freebsd"))]
+            #[cfg(all(feature = "x11", any(target_os = "linux", target_os = "freebsd")))]
             (RawWindowHandle::Xlib(xlib_window_handle), RawDisplayHandle::Xlib(xlib_display_handle)) => Box::new(x11::X11Impl::new(xlib_window_handle, xlib_display_handle)?),
-            #[cfg(any(target_os = "linux", target_os = "freebsd"))]
+            #[cfg(all(feature = "wayland", any(target_os = "linux", target_os = "freebsd")))]
             (RawWindowHandle::Wayland(wayland_window_handle), RawDisplayHandle::Wayland(wayland_display_handle)) => Box::new(wayland::WaylandImpl::new(wayland_window_handle, wayland_display_handle)?),
             #[cfg(target_os = "windows")]
             (RawWindowHandle::Win32(win32_handle), _) => Box::new(win32::Win32Impl::new(&win32_handle)?),