Is there any chance for more cmake options which make the building of the various components and/or plugins optional?

On my mind are
1) Webservice plugins
2) Generic plugins (html gallery, wallpaper, video-slideshow, etc)
3) DNG Converter
4) Online version checker (really minor, but I'd guess every packager might turn it off)
5) Prompt for downloading face engine (minor too)
6) ImageEditor

For the plugins some coarse graining, like "all or none of the import-export webservice plugins", etc., is enough for me.

I'd try to contribute by myself, in fact I already made patches, for some of these, for 7.X for myself.
But I would need some feedback first and maybe won't find the time to work on it.

Thanks & Best
Paul