Conditional availability of properties

[Arun Raghavan]

On Mon, 2011-09-19 at 12:00 +0100, Tim-Philipp Müller wrote:
> On Fri, 2011-09-16 at 21:57 +0200, Stefan Sauer wrote:
> 
> > 3.) make it and interface and use GstImplementsInterface (which is on
> > the to-kill list for 0.11)
> 
> More on the killed-already list. However, I am not sure if you can
> convert an existing interface to GstImplementsInterace without some
> subtle (or not so subtle) API or ABI breakage somewhere.

Happily, GstStreamVolume already implements it.

-- Arun