ffmpeg fails to build against ???

[Jeremy Lavergne]

> Ok, I get it then that the following means all is OK, even if the "Error: No ports matched the given expression" is a little confusing. :-/
> 
> Error: No ports matched the given expression  = All OK then, nothing to upgrade then.

It's just an abstraction: "outdated" evaluates to set a portnames. If you're trying to "upgrade" an empty set then it is technically an error, but in this specific case not one to really care about.