objectstore: don't build unless asked for

[Thomas Jarosch]

On Friday, 6. November 2015 18:44:52 ellie timoney via Cyrus-devel wrote:
> I think the main questions at this point are:
> 
> * are we happy with the combination of --enable-objectstore to turn the
> feature on, plus --with-[backend] to select a backend, and default to
> dummy if no other backend was selected?

what's the plus side of having the dummy backend
if you do --enable-objectstore?

To me it sounds like it was added as compat layer if no real objectstore is 
available. Since the objectstore will be optional,
is the dummy backend really needed?

Cheers,
Thomas