/* -----------------------------------------------------------------------------
- * $Id: MBlock.h,v 1.18 2003/08/29 16:00:29 simonmar Exp $
+ * $Id: MBlock.h,v 1.19 2003/09/21 13:26:05 igloo Exp $
*
* (c) The GHC Team, 1998-1999
*
# define MARK_HEAP_ALLOCED(p) ((MBLOCK_MAP_ENTRY(p) < MBLOCK_MAP_SIZE) \
&& (mblock_map[MBLOCK_MAP_ENTRY(p)] = 1))
-#elif defined(x86_64_TARGET_ARCH)
+#elif SIZEOF_VOID_P == 8
/* XXX: This is a HACK, and will not work in general! We just use the
* lower 32 bits of the address, and do the same as for the 32-bit
* version. As long as the OS gives us memory in a roughly linear