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Date:      Mon, 26 Jul 2010 17:50:25 -0700 (PDT)
From:      Doug Barton <dougb@FreeBSD.org>
To:        Emanuel Haupt <ehaupt@FreeBSD.org>
Cc:        Emanuel Haupt <ehaupt@critical.ch>, freebsd-ports@FreeBSD.org
Subject:   Re: Inverting OPTIONS (Was: Re: cvs commit: ports/net-im/libpurple Makefile distinfo)
Message-ID:  <alpine.BSF.2.00.1007261749580.20040@qbhto.arg>
In-Reply-To: <20100726233950.822f4f13.ehaupt@FreeBSD.org>
References:  <201007250132.o6P1Whjh069411@repoman.freebsd.org> <alpine.BSF.2.00.1007250056300.1689@qbhto.arg> <20100726135113.0ee77eea.ehaupt@critical.ch> <alpine.BSF.2.00.1007261326560.33929@qbhto.arg> <20100726233950.822f4f13.ehaupt@FreeBSD.org>

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On Mon, 26 Jul 2010, Emanuel Haupt wrote:

> Doug Barton <dougb@freebsd.org> wrote:
>> On Mon, 26 Jul 2010, Emanuel Haupt wrote:
>>
>>> Doug Barton <dougb@FreeBSD.org> wrote:
>>>> ports/net-im/libpurple/files/patch-libpurple_protocols_oscar_oscar.c
>>>> has been added to the latest version, so the patch is no longer
>>>> needed.
>>>
>>> Also, the PLIST is broken if the PERL option is specified:
>>>
>>> http://people.freebsd.org/~ehaupt/buildlogs/libpurple-2.7.2.log
>>>
>>> Maybe from time to time a QAT exp run with inverted OPTIONS values
>>> would be revealing.
>>
>> As I said on IRC yesterday, there is no reason to expect that simply
>> inverting OPTIONS would work. A lot of OPTIONS are not binary, and
>> the defaults are chose to work together, often in harmony with the
>> dependencies that they trigger.
>>
>> Put another way, it does not logically follow that if "A, B, and !C"
>> works that "!A, !B, and C" would also work.
>
> I didn't assume that. It would be an easy way to spot simple mistakes
> such as incomplete package lists, unfetchable optional distfiles,
> things like that.

Well then why don't you explain in more detail what you're suggesting, 
because one of us is confused. :)

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