Boost 1.65 made 'advance()' ambiguous.
Bug: https://bugs.gentoo.org/show_bug.cgi?id=629966

--- a/src/gui/qt/gametable/gametableimpl.cpp
+++ b/src/gui/qt/gametable/gametableimpl.cpp
@@ -3859,7 +3859,7 @@
 	int playerCount = static_cast<int>(seatList->size());
 	if (id < playerCount) {
 		PlayerListIterator pos = seatList->begin();
-		advance(pos, id);
+		std::advance(pos, id);
 		myStartWindow->getSession()->startVoteKickPlayer((*pos)->getMyUniqueID());
 	}
 }