Evolution-sharp dependency should not be mandatory

[Arun Raghavan]

There should be a way for me to use the other plugins even if I don't want Evolution and evolution-sharp on my system. Here's a patch to make compilling the Evo plugin optional.

Please let me know if any changes are required. If this is okay, I'll write a patch to make the other plugins optional too.

Thanks for the great tool!

[Chris Halse Rogers (raof)]

Thank you very much for doing the work that I've meant to do, but never quite got around to doing! (And somewhat better than I would have done it, too).

The patch looks good to me. Feel free to create the patch to make other plugins optional, but it's probably only worth bothering with plugins that have dependencies other than do.addins or do.dbus. Do will soon be growing (the mono.addins branch has much of the work done) a way to configure the loading and unloading of plugins. The extra optional plugins patch will presumably use a ENABLED_SUBDIRS and +=, rather than multiple variables, yes?

I'll wait for the extended patch before committing.

[Arun Raghavan (arunraghavan)]

Evolution seems to be the only plugin with a compile-time dependency, so this patch should suffice for the purpose of being able to minimise compile-time dependencies.

I started looking at this while writing an ebuild for Gentoo. Ideally, I think there should be an option to disable each plugin (all plugins can be selected by default), so that people who want only a specific set of plugins can choose this. Would this be fine?

Thanks for the feedback!

[Arun Raghavan (arunraghavan)]

Just in case this is fine, here's the patch.

[Chris Halse Rogers (raof)]

I'll ask some other Do developers about this. I personally think this
complicates the build system a bit, for little benefit, but I'll ask
around.

[Arun Raghavan (arunraghavan)]

As discussed on IRC, here's a patch that makes only those plugins that depend on libs other than Do.(Addins|DBus} optional.