commit dd54b8644c60cd7b7bee27ecaae4138e7c056c01
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Mar 8 16:46:45 2013 +0000

    Remove __malloc_ptrdiff_t.

Conflicts:
	malloc/malloc.h

Adjusted to keep the definition in the public <malloc.h> header file.

diff --git a/malloc/morecore.c b/malloc/morecore.c
index 8a72ba6a3d70a865..1e7b77749ff1700d 100644
--- a/malloc/morecore.c
+++ b/malloc/morecore.c
@@ -43,7 +43,7 @@ libc_hidden_proto (__sbrk)
    If INCREMENT is negative, shrink data space.  */
 __malloc_ptr_t
 __default_morecore (increment)
-     __malloc_ptrdiff_t increment;
+     ptrdiff_t increment;
 {
   __malloc_ptr_t result = (__malloc_ptr_t) __sbrk (increment);
   if (result == (__malloc_ptr_t) -1)