It would be nice to be able to use :3.0 slot as it's the one that is being maintained by upstream currently. Googling a bit it seems that it should work without much issues https://dev.icinga.org/issues/10076 Thanks
Not sure this is something I can fix my side, I could change it to be wxgtk:3.0 only maybe, but that's it.
I would try to revbump it to 3.0 slot and, also, try to use wxwidgets.eclass (well, that should already be done anyway to ensure the right flags are passed) and, if it works... fine. If not, I would at least try to report it to upstream as they will need to move more sooner than later :/
Well, this only affects "studio" USE flag... but that one is masked: # prometheanfire <prometheanfire@gentoo.org> (24 Jan 2016) # studio support is best effort only net-analyzer/icinga2 studio
Looks like I still need to handle the dependency myself but I've updated 9999 to use 3.0. It'll be used for the next bump.