[Slackbuilds-users] libdv: a problem and a possible fix

[Luiz Carlos Ramos]

On Thu, May 26, 2016 at 09:22:34PM +0700, Willy Sudiarto Raharjo wrote:
> > recently I've built libdv using the slackbuild, and got a problem.
> > 
> > Basically, the source libdv/enc_input.c uses a macro (VIDEO_MAX_FRAME)
> > possibly defined in /usr/include/linux/videodev.h. Looking at that file,
> > the macro isn't defined, and so the build process stop with a proper
> > error.
> > 
> > I have to say I'm not using the stock kernel, but 3.16.3. I 
> > don't know if this problem is specific to this kernel or if it applies
> > to the stock 14.1 kernel as well (or to -current).
> > 
> > Making some investigation, I've found that this macro is defined at
> > /usr/include/linux/videodev2.h, and it's defined with 32. Also,
> > at least one case was solved defining this macro at the application
> > level, such as
> > https://lists.debian.org/debian-glibc/2006/07/msg00149.html, for
> > instance (although recognizing this case is not about libdv at all).
> > 
> > What I did was defining that macro in libdv/enc_input.c if it's not
> > still not defined. I've built a patch to that file and included it at
> > the SlackBuild script. The git patch goes attached.
> > 
> > Another option, which I didn't try, was to substitute #include videodev.h to
> > #include videodev2.h.
> > 
> > Hope this can help the community!
> 
> Hi Luiz
> 
> May i know which Slackware version do you use ?
> 14.1 or current?
> 

14.1, with a different kernel as mentioned above (3.16.3).

> 
> 
> -- 
> Willy Sudiarto Raharjo
> 

Thanks!

Luiz



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