Checking patch malloc/malloc-check.c...
error: while searching for:
    }
  else
    {
      /* Mark the chunk as belonging to the library again.  */
      (void)tag_region (chunk2mem (p), memsize (p));
      _int_free_chunk (&main_arena, p, chunksize (p), 1);
      __libc_lock_unlock (main_arena.mutex);
    }
  __set_errno (err);
}

error: patch failed: malloc/malloc-check.c:233
error: malloc/malloc-check.c: patch does not apply
Checking patch malloc/malloc.c...
error: while searching for:
/* Internal routines.  */

static void*  _int_malloc(mstate, size_t);
static void _int_free_chunk (mstate, mchunkptr, INTERNAL_SIZE_T, int);
static void _int_free_merge_chunk (mstate, mchunkptr, INTERNAL_SIZE_T);
static INTERNAL_SIZE_T _int_free_create_chunk (mstate,
					       mchunkptr, INTERNAL_SIZE_T,

error: patch failed: malloc/malloc.c:1024
error: malloc/malloc.c: patch does not apply