arduino usb/com port issue

[Gary Aitken]

It's not clear to me if this is the right place for this or not; please
let me know if not.  I originally posted on questions and got no response.

I installed the arduino package on an 11.3-RELEASE system.  When
it comes up, the Tools/Serial Port menu item is greyed out,
apparently because it doesn't know USB ports serve as com ports,
or for some reason it can't find them.  Is this something I need to
configure somehow?  Is this something that should be filed as a
bug?

Thanks for any clues,

Gary