can't use it with media-sound/jack2
commit 0f484e61b4156253876ff3a5d6f6ae5117da6220 Author: Ingolf Wagner <contact@ingolf-wagner.de> Date: Mon Aug 14 01:12:09 2017 +0200 media-video/mplayer: revbump all ebuilds to fix jack dependency * mplayer can use both - media-sound/jack-audio-connection-kit (aka jack1) - media-sound/jack2 (aka jack2) and hence requires a dependency on virtual/jack to be able to use any one of them. Bug: https://bugs.gentoo.org/show_bug.cgi?id=602886