Our kdelibs has XDG_MENU_PREFIX hardcoded at build time (done in ebuild's src_prepare function). fd.o compliants apps expect XDG_MENU_PREFIX to be properly set (if required) as specified in URL. Since our ebuild is enforcing a particular XDG_MENU_PREFIX if env doesn't provide one, we should also make sure that our value is set to env using the same logic. So, please find patches attached (against kdelibs-4.3.4). Reproducible: Always
Created attachment 217164 [details, diff] kde-base/kdelibs-4.3.4 ebuild patch
Created attachment 217165 [details] 11-xdg-menu-kde file to place into FILESDIR/dist
@kde. This has been fixed a few weeks ago, closing.