Re: Requires question in SPEC

[Jaroslav Reznik]

On Tuesday 11 August 2009 10:02:23 Steven Moix wrote:
>  Hello all,
>
>  I'm facing a problem with one of my SPEC files...I'm packaging a program
>  (motion, in RPM Fusion) that has a startup script. In the start()
>  section of this startup script, I have added an
>  "LD_PRELOAD=/usr/lib64/libv4l/v4l2convert.so daemon $motion" to support
>  more cameras. 
You can patch your package to use libv4l directly. Usually it's easy - there 
are some issues but... Check some packages using v4l to check what you have to 
do to port it.

Also check this blogpost by Hans de Goede (libv4l author) [1].

[1] http://hansdegoede.livejournal.com/3636.html

Jaroslav

>  So I naturally added a "Requires: libv4l" in my SPEC file,
> but of course
>  rpmlint complains with "E: explicit-lib-dependency libv4l".
>
>  The problem here is that I can't see how RPM could automatically add
>  libv4l as a dependency when I build the package...it's not in the code,
>  only a call in the startup script. So...
>
>  * Should I consider that libv4l is installed by default on F10/11 and
>  not put the require.
>  * Put the require and let rpmlint complain.
>
>  Any advice on that?
>  Note that if you launch the startup script on a system that doesn't have
>  libv4l, it simply doesn't do the LD_PRELOAD, but still works "as usual".
>
>  Thanks
>  Steven 
-- 
Jaroslav Řezník <jreznik(a)redhat.com&gt;
Associate Software Engineer - Base Operating Systems Brno

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