Yes, this happens to a lot of packages.
Also containing "Please add USE_LANGUAGES+=fortran".
Some packages actually break, when you add the requested variables.

Zafer.


2006/7/27, Steven M. Bellovin <smb@cs.columbia.edu>:
> I'm working on a package for xml2rfc.  I ran my package and got the
> message "Please add USE_LANGUAGES+=c to the package Makefile".  Fair
> enough, except that it doesn't use C; it's written in tcl/tk.   What,
> if anything, should I add to the Makefile?  I currently use
>
>        DEPENDS+=       tcl>=8.0:../../lang/tcl
>