Hi Ben,

> This question would have been better in comp.unix.programmer. You'd
> hit a wider pool of people who know getopt_long -- it is not standard
> C.

Ach! :-/ Sorry for the mistake...

> I've set followup-to that group.

Thanks a lot. :-)

> has_arg affects only the long version permitting '--crates' and
> '--crates=value'. As a GNU extension you can use double :: to extend

Nooo! I miss a simple ':'... I put myself at the stake! :-)

Thank you very much.