Avahi Support on Linux

[Caolán McNamara]

On Tue, 2014-01-07 at 15:31 +0100, Siqi Liu wrote:
> Tor pushed a quick fix for that and disabled avahi temporarily so that
> it doesn't get compiled unless specified. I'm thinking of fixing that
> but not sure how to load Avahi dynamically depending on the presence
> of Avahi library on the distribution.
> 
> Any pointers on how to achieve that?

We've done stuff like this plenty of times in the past. One current one
is sc/source/core/opencl/clcc.cxx see the dlopen, dlsym hackery.

C.