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Date: Fri, 30 Nov 2012 16:47:40 +0100
From: Thierry Thomas <thierry@FreeBSD.org>
To: FreeBSD Ports List <freebsd-ports@freebsd.org>
Subject: Re: Dealing with options in dependent ports
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Hello,

Le ven 30 nov 12 à 16:36:32 +0100, Paul Schmehl <pschmehl_lists@tx.rr.com>
 écrivait :
> I'm working on a port that has an option for a build_depends on another 
> port.  If that option is selected, the dependent port MUST be built with an 
> option that is not selected by default.
> 
> Is there a way to either force that option to be selected in the dependent 
> port?  Or, failing that, is it possible to pop up a message warning the 
> installer that they must select that option before building the dependent 
> port or, if they've already installed it without the option, they must 
> deinstall and reinstall after selecting that option?
> 

I'd suggest to make a slave port where you force the required option.
However, to enforce the right dependency, this option have to produce a
different plist.
-- 
Th. Thomas.