Merge pull request #83 from jcmoyer/closure-borrow

Use &mut closure to satisfy the borrow checker

Author: AngryLawyer

src/sdl2/audio.rs

@@ -209,7 +209,7 @@ pub struct AudioSpec<'a > {
 
 extern "C" fn c_audio_callback(userdata: *c_void, stream: *uint8_t, len: c_int) {
     unsafe {
-        let f : &|&mut [u8]| = cast::transmute(userdata);
+        let f : &mut |&mut [u8]| = cast::transmute(userdata);
 
         // FIXME: lifetime error in calling
         //slice::raw::mut_buf_as_slice(stream as *mut u8, len as uint, *f)

src/sdl2/timer.rs

@@ -82,6 +82,6 @@ impl<'a> Drop for Timer<'a> {
 }
 
 extern "C" fn c_timer_callback(_interval: uint32_t, param: *c_void) -> uint32_t {
-    let f : &|| -> uint = unsafe { cast::transmute(param) };
+    let f : &mut || -> uint = unsafe { cast::transmute(param) };
     (*f)() as uint32_t
 }