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Date: Mon, 08 Aug 2005 10:18:41 +0400
From: Sergey Matveychuk <sem@FreeBSD.org>
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To: Sergey Skvortsov <skv@protey.ru>
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Cc: vd@datamax.bg, Adam Weinberger <adamw@magnesium.net>,
	freebsd-ports@freebsd.org
Subject: Re: The right way to depend on a package's extra feature
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Sergey Skvortsov wrote:
> Just (c) patch /usr/ports/Mk/* to support:
> RUN_DEPENDS=/path/to/check/file:${PORTSDIR}/category/portname:target%WITH_FEATURE_1%FEATURE_2=mydb
> or even:
> RUN_DEPENDS=/path/to/check/file:${PORTSDIR}/category/portname%WITH_FEATURE_1%FEATURE_2=mydb
> 
> (IMO delimiter symbol '%' is aesthetic enough)
> 
> In such case dependency should be patched/builded/installed as:
> 
> cd category/portname && make WITH_FEATURE_1=yes FEATURE_2=mydb target
> 
> Of course, it is not a very trivial patchset. And currently this approach

But it quite possible though.

> does not support packages. OPTIONS are not installed with packages - so
> there is no possibility/sence to parse them. I think a file like
> /var/db/pkg/portname/+FEATURES would be introduced, where OPTIONS is subset
> of FEATURES. Exact sematics of FEATURES is fuzzy on the first glance, but we
> can draw up a formal specification :)
> 

Yep, it should be implemented first. But I'm not sure what is plans for 
pkg_install tools.
I've started making a patch for pkg_install but stopped when found out 
some guys planned to rewrite the tools (flz@ and will@ have some work done).

-- 
Sem.