Unlocks platform-specific attributes

src/platform/linux/api_dispatch.rs

@@ -22,6 +22,9 @@ use api::x11::XConnection;
 use api::x11::XError;
 use api::x11::XNotSupported;
 
+#[derive(Default)]
+pub struct PlatformSpecificWindowBuilderAttributes;
+
 enum Backend {
     X(Arc<XConnection>),
     Wayland,
@@ -172,7 +175,8 @@ impl<'a> Iterator for WaitEventsIterator<'a> {
 impl Window {
     #[inline]
     pub fn new(window: &WindowAttributes, pf_reqs: &PixelFormatRequirements,
-               opengl: &GlAttributes<&Window>) -> Result<Window, CreationError>
+               opengl: &GlAttributes<&Window>, _: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
     {
         match *BACKEND {
             Backend::Wayland => {

src/platform/linux/mod.rs

@@ -12,13 +12,19 @@ use api::osmesa::{self, OsMesaContext};
 
 pub use self::api_dispatch::{Window, WindowProxy, MonitorId, get_available_monitors, get_primary_monitor};
 pub use self::api_dispatch::{WaitEventsIterator, PollEventsIterator};
+pub use self::api_dispatch::PlatformSpecificWindowBuilderAttributes;
 mod api_dispatch;
 
+#[derive(Default)]
+pub struct PlatformSpecificHeadlessBuilderAttributes;
+
 pub struct HeadlessContext(OsMesaContext);
 
 impl HeadlessContext {
     pub fn new(dimensions: (u32, u32), pf_reqs: &PixelFormatRequirements,
-               opengl: &GlAttributes<&HeadlessContext>) -> Result<HeadlessContext, CreationError>
+               opengl: &GlAttributes<&HeadlessContext>,
+               _: &PlatformSpecificHeadlessBuilderAttributes)
+               -> Result<HeadlessContext, CreationError>
     {
         let opengl = opengl.clone().map_sharing(|c| &c.0);