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List:       kde-devel
Subject:    Re: Why is libv4l required for kdenetwork?
From:       Parker Coates <parker.coates () kdemail ! net>
Date:       2010-03-16 4:48:22
Message-ID: 85d347351003152148y67a9702eo136518fc1fb67063 () mail ! gmail ! com
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On Mon, Mar 15, 2010 at 23:39, Raphael Kubo da Costa wrote:
> On Monday 15 March 2010 22:06:16 Matthew Woehlke wrote:
>> lindsay.mathieson@gmail.com wrote:
>> > Was doing a fresh trunk build on a pc and got this error with
>> > configure for kdenetwork. Seems a heavy requirement for networking ...
>> >
>> > :)
>> >
>> > -------------------------------------------------------------------------
>> > ---- -- The following REQUIRED packages could NOT be located on your
>> > system.
>> > -- You must install these packages before continuing.
>> > -------------------------------------------------------------------------
>> > ----
>> >
>> >     * libv4l<http://hansdegoede.livejournal.com,
>> >
>> > http://linuxtv.org/hg/~hgoede/libv4l/>
>> >
>> >       Collection of video4linux support libraries
>> >       Required for better webcam support
>>
>>  From what I am told, webcam support in kopete is basically broken
>> without it. However there should be a knob to turn off video support in
>> kopete. (I guess it does not do this automatically if libv4l is not
>> found? Maybe it should?)
>>
>> I am CC'ing Frank, who maintains this bit of the buildsystem, as I don't
>> know if he reads this list, but this should be continued at either
>> kde-buildsystem or kopete's list (which I forget offhand, and am not
>> going to post to because it is moderated and seems to have no one
>> minding the moderation queue).
>>
>> Of course, if you think you care about video support in kopete, you
>> should just install libv4l :-), your distro should have packages.
>>
>> p.s. my thanks to Frank for improving the 'not found' message :-)
>
> Commit 1100805 made Kopete work correctly without libv4l.
>
> In order to build it without libv4l support, pass -DDISABLE_VIDEOSUPPORT=ON to
> cmake.

I'm no build system guru, but wouldn't it be a lot less confusing to
name that flag -DENABLE_VIDEOSUPPORT and have it default to ON?
Turning "on" an negative option takes an extra second to wrap one's
head around.

Parker
 
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