#ifndef SCM_STACKCHK_H
#define SCM_STACKCHK_H
-/* Copyright (C) 1995,1996,1998,2000, 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1998,2000, 2003, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
#define SCM_STACK_CHECKING_P SCM_STACK_LIMIT
#if defined BUILDING_LIBGUILE && defined STACK_CHECKING
+#include "libguile/private-options.h"
# if SCM_STACK_GROWS_UP
# define SCM_STACK_OVERFLOW_P(s)\
- (SCM_STACK_PTR (s) \
- > (SCM_I_CURRENT_THREAD->base + SCM_STACK_LIMIT))
+ ((SCM_STACK_PTR (s) - SCM_I_CURRENT_THREAD->base) > SCM_STACK_LIMIT)
# else
# define SCM_STACK_OVERFLOW_P(s)\
- (SCM_STACK_PTR (s) \
- < (SCM_I_CURRENT_THREAD->base - SCM_STACK_LIMIT))
+ ((SCM_I_CURRENT_THREAD->base - SCM_STACK_PTR (s)) > SCM_STACK_LIMIT)
# endif
# define SCM_CHECK_STACK\
{\