calculate-overlay/profiles/default/package.mask

# not compiled
=dev-db/myodbc-5.2.7-r3
=dev-java/commons-math-2.1-r2
=dev-libs/efl-1.20.7-r1
=sys-process/xjobs-20170829

# mask portage wgetpaste
>app-text/wgetpaste-2.25-r4

# prevent automagic depends
sys-libs/db:6.0

# blocking dev-util/pida-0.6.2-r1::gentoo
=dev-python/bpython-0.16

# <dev-python/billiard-3.4 required by dev-python/celery-3.1.24-r1
=dev-python/billiard-3.5.0.0

# blocks dev-python/oslo-privsep-1.22.1, dev-python/glance_store-0.22.0, dev-python/oslo-service-1.25.1
=dev-python/eventlet-0.20.1-r1
=dev-python/eventlet-0.21.0-r1
=dev-python/eventlet-0.21.1-r1

# not downloadable
=x11-plugins/wmcube-1.0.2

# looks bad
>=xfce-extra/xfce4-datetime-plugin-0.7

# crashes
=net-im/skypeforlinux-8.30.0.50