#undef HAVE_ISASTREAM /* SysV streams */
#undef HAVE_PTY_H /* Linux, Tru64 openpty */
#undef HAVE_LIBUTIL_H /* BSD openpty */
+#undef HAVE_UTIL_H /* NetBSD openpty */
#undef HAVE_STROPTS_H /* SysV streams */
#undef HAVE_STRTIO_H /* SysV streams TIOCSIGNAL */
# define new c_new
# define this c_this
# define catch c_catch
-# define not c_not
# define EXTERN_C extern "C"
# else /* C code */