TODO
- why are nanoseconds always "1"?!
- check UUID_LEN_STR+1 handling for consistency
CANDO
- getopt_long support
- a more sophisticated test suite
- more platform support in uuid_mac.c?!
- global locking according to standard?
- persistent/non-volatile state writing?
- additional Perl API for covering Perl language
- additional C API for DCE 1.1 compatibility