Created attachment 360868 [details, diff] syslog-ng-3.4.2.ebuild.patch Please add systemd socket activation support. If configured with --enable-systemd, syslog-ng links against libsystemd-daemon, that's why "systemd" use flag is added.
This also fixes an automagic dependency introduced after removing --disable-systemd (bug 418317).
applied to syslog-ng-3.4.3