auto merge of #17012 : thestinger/rust/sized, r=nikomatsakis

1 files changed, 17 insertions, 2 deletions

diff --git a/src/liballoc/heap.rs b/src/liballoc/heap.rs
index 38216fa5b59..c72a77702af 100644
--- a/src/liballoc/heap.rs
+++ b/src/liballoc/heap.rs
@@ -14,7 +14,7 @@
 
 use core::ptr::RawPtr;
 #[cfg(not(test))] use core::raw;
-#[cfg(not(test))] use util;
+#[cfg(stage0, not(test))] use util;
 
 /// Returns a pointer to `size` bytes of memory.
 ///
@@ -119,7 +119,7 @@ unsafe fn exchange_free(ptr: *mut u8, size: uint, align: uint) {
 }
 
 // FIXME: #7496
-#[cfg(not(test))]
+#[cfg(stage0, not(test))]
 #[lang="closure_exchange_malloc"]
 #[inline]
 #[allow(deprecated)]
@@ -134,6 +134,21 @@ unsafe fn closure_exchange_malloc(drop_glue: fn(*mut u8), size: uint,
     alloc as *mut u8
 }
 
+// FIXME: #7496
+#[cfg(not(stage0), not(test))]
+#[lang="closure_exchange_malloc"]
+#[inline]
+#[allow(deprecated)]
+unsafe fn closure_exchange_malloc(drop_glue: fn(*mut u8), size: uint,
+                                  align: uint) -> *mut u8 {
+    let p = allocate(size, align);
+
+    let alloc = p as *mut raw::Box<()>;
+    (*alloc).drop_glue = drop_glue;
+
+    alloc as *mut u8
+}
+
 #[cfg(jemalloc)]
 mod imp {
     use core::option::{None, Option};