Due to bug 497262, I will mask the following packages for removal in 30 days.
net-libs/libguac-0.6.3 net-libs/libguac-0.7.0 net-libs/libguac-client-rdp-0.6.2 net-libs/libguac-client-rdp-0.7.0 net-libs/libguac-client-rdp-0.7.1 net-libs/libguac-client-vnc-0.6.1 net-libs/libguac-client-vnc-0.7.0 net-misc/guacd-0.6.2 net-misc/guacd-0.7.0 www-apps/guacamole-0.6.2 www-apps/guacamole-0.7.0 www-apps/guacamole-0.8.0 Since guacamole-0.8.3, only net-misc/guacamole-server & www-apps/guacamole are needed. Br Andreas