How to deal with ports-filesystem violation?

[Marko Käning]

On 29 Jun 2015, at 00:26 , Clemens Lang <cal at macports.org> wrote:

> In your case, since you seem to have a reason to ignore this warning, add this
> line to your Portfile to silence the warning.

I did so, but I still get this warning:
---
Warning: kf5-kdoctools installs files outside the common directory structure.
---
which is intended, I suppose.