I've found that for some reason prototype for `rtems_libio_set_private_env()' has been put into `libio_.h', not in `libio.h'. Is it a mistake, or I need to include file marked "Libio internal information" into my code? Also, prototype for `chroot()' just doesn't seem to exist, but that's a `newlib' issue as far as I understand. Sergei.