Change sdl2-sys to #![no_std]

sdl2-sys/src/audio.rs

@@ -1,3 +1,4 @@
+use core::prelude::*;
 use libc::{c_int, c_uint, c_void, uint8_t, uint32_t};
 use libc::{uint16_t, c_double, c_char};
 use super::rwops::SDL_RWops;
@@ -24,9 +25,7 @@ pub const AUDIO_S32SYS : SDL_AudioFormat =     AUDIO_S32LSB;
 pub const AUDIO_F32SYS : SDL_AudioFormat =     AUDIO_F32LSB;
 
 pub type SDL_AudioCallback =
-    ::std::option::Option<extern "C" fn
-                              (arg1: *const c_void, arg2: *const uint8_t,
-                               arg3: c_int)>;
+    Option<extern "C" fn (arg1: *const c_void, arg2: *const uint8_t, arg3: c_int)>;
 #[allow(missing_copy_implementations)]
 #[repr(C)]
 pub struct SDL_AudioSpec {
@@ -41,9 +40,7 @@ pub struct SDL_AudioSpec {
     pub userdata: *const c_void,
 }
 pub type SDL_AudioFilter =
-    ::std::option::Option<extern "C" fn
-                              (arg1: *const SDL_AudioCVT,
-                               arg2: SDL_AudioFormat)>;
+    Option<extern "C" fn (arg1: *const SDL_AudioCVT, arg2: SDL_AudioFormat)>;
 #[allow(dead_code, missing_copy_implementations, raw_pointer_derive)]
 #[derive(Copy)]
 #[repr(C)]

sdl2-sys/src/controller.rs

@@ -1,3 +1,4 @@
+use core::prelude::*;
 use libc::{c_int, c_char, c_uchar, c_uint, c_void, int16_t, uint8_t};
 use joystick::{SDL_Joystick, SDL_JoystickGUID};
 

sdl2-sys/src/event.rs

@@ -6,6 +6,7 @@ use gesture::SDL_GestureID;
 use keyboard::SDL_Keysym;
 use touch::SDL_FingerID;
 use touch::SDL_TouchID;
+use core::prelude::*;
 
 pub type SDL_bool = c_int;
 

sdl2-sys/src/haptic.rs

@@ -1,4 +1,5 @@
 use joystick::SDL_Joystick;
+use core::prelude::*;
 use libc::{c_int, c_uint, c_char, c_float, c_void, int16_t, int32_t, uint8_t, uint16_t, uint32_t};
 
 pub const SDL_HAPTIC_CONSTANT: uint16_t = 1 << 0;

sdl2-sys/src/lib.rs

@@ -1,6 +1,9 @@
+#![feature(no_std, core)]
+#![no_std]
 #![allow(non_camel_case_types)]
 
 extern crate libc;
+extern crate core;
 
 pub mod scancode;
 pub mod keycode;

sdl2-sys/src/rect.rs

@@ -2,7 +2,8 @@
 Rectangle Functions
  */
 
-use std::mem;
+use core::prelude::*;
+use core::intrinsics::transmute;
 use libc::c_int;
 
 /// A structure that defines a two dimensional point.
@@ -71,7 +72,7 @@ impl Rect {
             ll::SDL_EnclosePoints(
                 points.as_ptr(),
                 points.len() as c_int,
-                mem::transmute(clip.as_ref()),
+                transmute(clip.as_ref()),
                 &out
             ) != 0
         };

sdl2-sys/src/timer.rs

@@ -1,9 +1,9 @@
+use core::prelude::*;
 use libc::{uint32_t, uint64_t, c_void, c_int};
 
 //SDL_timer.h
 pub type SDL_TimerCallback =
-    ::std::option::Option<extern "C" fn(arg1: uint32_t, arg2: *const c_void)
-                                        -> uint32_t>;
+    Option<extern "C" fn(arg1: uint32_t, arg2: *const c_void) -> uint32_t>;
 pub type SDL_TimerID = c_int;
 extern "C" {
     pub fn SDL_GetTicks() -> uint32_t;

sdl2-sys/src/video.rs

@@ -1,6 +1,7 @@
 use rect::Rect;
 use surface::SDL_Surface;
 
+use core::prelude::*;
 use libc::{c_void, c_int, c_float, c_char, uint16_t, uint32_t};
 
 pub type SDL_Rect = Rect;