-/* Direction of the C runtime stack. This function is
- async-signal-safe. */
-
-# if STACK_DIRECTION
-# define find_stack_direction(ptr) STACK_DIRECTION
-# else
-# if ! SIGACTION_WORKS || HAVE_XSI_STACK_OVERFLOW_HEURISTIC
-static int
-find_stack_direction (char const *addr)
-{
- char dummy;
- return ! addr ? find_stack_direction (&dummy) : addr < &dummy ? 1 : -1;
-}
-# endif
-# endif
-
-# if SIGACTION_WORKS