+++ /dev/null
-dnl Copyright (C) 2009 Sun Microsystems
-dnl This file is free software; Sun Microsystems
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-#--------------------------------------------------------------------
-# Check what direction the stack runs in
-#--------------------------------------------------------------------
-
-AC_DEFUN([PANDORA_STACK_DIRECTION],[
- AC_REQUIRE([AC_FUNC_ALLOCA])
- AC_CACHE_CHECK([stack direction], [ac_cv_c_stack_direction],[
- AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#include <stdlib.h>
- int find_stack_direction ()
- {
- static char *addr = 0;
- auto char dummy;
- if (addr == 0)
- {
- addr = &dummy;
- return find_stack_direction ();
- }
- else
- return (&dummy > addr) ? 1 : -1;
- }
- ]],[[
- exit (find_stack_direction() < 0);
- ]])],[
- ac_cv_c_stack_direction=1
- ],[
- ac_cv_c_stack_direction=-1
- ])
- ])
- AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
-])
-
-
-