update math/saga: question about wxWidgets

[Rainer Hurling]

I am the maintainer of math/saga. A few days ago I sent an update, see 
http://www.freebsd.org/cgi/query-pr.cgi?pr=150157.

With only little experience I tried to update to the newest linux 
sources of SAGA GIS.

Among other things I introduced an option for unicode support. 
Concerning that code I have a question:

Is it adequate to declare "WITH_UNICODE=yes" (and "CONFIGURE_ARGS+= 
--enable-unicode" for the build process) to ensure, that the right 
wxWidget (like wxgtk2-unicode) ports get installed, if they are not 
present? Or do I have to declare them explictly as dependencies?

I would really appreciate if someone could have a look at it.

Furthermore, perhaps someone is willing to commit this update ;-)

Thanks in advance,
Rainer Hurling