Update feature and unused attributes in sdl2-sys

sdl2-sys/build.rs

@@ -1,3 +1,5 @@
+#![feature(os)]
+
 extern crate "pkg-config" as pkg_config;
 
 fn main() {

sdl2-sys/src/lib.rs

@@ -1,5 +1,7 @@
 #![allow(non_camel_case_types)]
 
+#![feature(core, libc)]
+
 extern crate libc;
 
 pub mod scancode;

sdl2-sys/src/rect.rs

@@ -6,7 +6,7 @@ use std::mem;
 use libc::c_int;
 
 /// A structure that defines a two dimensional point.
-#[derive(PartialEq, Clone, Show, Copy)]
+#[derive(PartialEq, Clone, Debug, Copy)]
 #[repr(C)]
 pub struct Point {
     pub x: i32,
@@ -14,7 +14,7 @@ pub struct Point {
 }
 
 /// A structure that defines a rectangle, with the origin at the upper left.
-#[derive(PartialEq, Clone, Show, Copy)]
+#[derive(PartialEq, Clone, Debug, Copy)]
 #[repr(C)]
 pub struct Rect {
     pub x: i32,

src/sdl2/gesture.rs

@@ -1 +1,2 @@
+#[allow(unused)]
 use sys::gesture as ll;

src/sdl2/haptic.rs

@@ -1,2 +1,3 @@
 //! Haptic Functions
+#[allow(unused)]
 use sys::haptic as ll;