debian: add shlibdeps parameter to ignore missing info

[justinjoy]

While packaging openwebrtc, sometimes it fails because some of libraries
likelibjpeg, libpng16, libcairo are not provide package information.
The parameter,--dpkg-shlibdeps-params=--ignore-missing-info, helps make
packages.

[justinjoy]

I am not sure whether this is right approach, but I can still meet the problem, "dpkg-shlibdeps: error: no dependency information found for /opt/openwebrtc-0.3/lib/libjpeg.so.8". even with libpng16, libcario, etc.
It looks like that the error occurs randomly.

This patch works for me, but if there's solution, please share with me.
Thanks.

[superdump]

I also found that workaround (which basically just disables the error) but wanted to find the time to fix it properly rather than committing that. I'll leave this here for people who need a workaround, but otherwise I'd prefer to fix the issue properly when someone gets time to. Thanks for the pull request!

[superdump]

@sdroege - how would you fix this?

[sdroege]

We should generate the info for those libraries, and should be doing that already (upstream cerbero does!). What might be a problem here is that the packages that use these libraries don't have a dependency on the package(s) that provides these libraries.