Qt4 is dead and going away. Dropping Qt5 makes the ebuild much less complex and incidentally also closes bug 603074.
s/Dropping Qt5/dropping USE=qt5/
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c96e81087ffa6f944548d2279c822f825065f220 commit c96e81087ffa6f944548d2279c822f825065f220 Author: Andreas Sturmlechner <asturm@gentoo.org> AuthorDate: 2017-12-03 16:43:32 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2017-12-03 17:01:39 +0000 net-irc/quassel: Drop USE=qt5, build with Qt5 unconditionally Acked-by: Patrick Lauer <patrick@gentoo.org> Closes: https://bugs.gentoo.org/639608 Closes: https://bugs.gentoo.org/603074 Package-Manager: Portage-2.3.16, Repoman-2.3.6 net-irc/quassel/Manifest | 2 +- net-irc/quassel/quassel-0.12.4.ebuild | 92 +++++++++++------------------------ 2 files changed, 30 insertions(+), 64 deletions(-)