depends_build on minimal version?

[Ryan Schmidt]

> On Sep 18, 2014, at 5:10 AM, René J.V. Bertin <rjvbertin at gmail.com> wrote:
> 
> Hi,
> 
> Quick question: I'm trying to update the digikam port to the just released 4.3.0 version, and doing so noticed that building translations requires pulling the PO files which in turns requires ruby >= 1.9 . 
> Is there a way to check if at least port:ruby19 is installed and selected?

No, and ports shall not care what version of another port is selected. The port select mechanism is for a user's convenience only, and shall not influence any port build.