Created attachment 417056 [details] kdegraphics-meta-15.12.49.9999.ebuild kdegraphics-meta ebuild explicitly lists libksane as a dependency. This makes ksane_plugins fail for the following reason: The meta package inherits kde5-meta-pkg and therefore pulls in libksane:5. However, ksaneplugin inherits kde4-base so it tries to pull in libksane:4. Emerge fails at this point with an unresolvable conflict. The solution is simple: remove libksane from kdegraphics-meta. It will be pulled in by ksaneplugin anyway. With it removed from kdegraphics-meta only libksane:4 is needed and everything builds fine. Attached fixed ebuild.
Both libksane :4 and :5 can be co-installed, so no need to change the kdegraphics-meta ebuild, but to remove the block from libksane:5. PS: If you submit ebuild changes, please do that with a diff so that it can be reviewed easily.
Why have libksane:5 pulled in? Nothing is using it right now.
Well, there's skanlite and digikam. kdegraphics-meta as far as I understand it is supposed to pull in all the kdegraphics components as shipped by upstream (conflicts _within_ KDE Applications aside).
skanlite:0 has a dep on libksane:5 so it will pull it in if you use skanlite. Digikam is all kde4 from what I can see. I don't use either skanlite or digikam so I don't think libksane:5 should be pulled in by the meta package. Not that I have strong feelings about it. I just want it to work. :)
As I said, they're actually co-installable, it just needs to be fixed inside eebuild. This change will make it possible, and then ksaneplugin can pull in libksane:4 just fine ;) https://github.com/a17r/kde/commit/be53b55d654f2e6e1474745c9dfe7f04759a651d
Works for me. :)
Fixed in git now by Andreas. https://gitweb.gentoo.org/proj/kde.git/commit/?id=effbe9b1a330f0804117b391c58267022357b4bc
