Miles Bader writes:

Miles Bader writes:
    Programs that don't use stdio crash in the `exit' function, because
    they call through the pointer__uClibc_cleanup, which has a value of 0.
    It has a value of 0 because __uClibc_main.c initializes it to the
    address of `__stdio_close_all', which is a weak symbol (and so is 0 if
    stdio is not used).
This patch from Miles fixes it, though we need to audit
__stdio_close_all usage to be sure...