Funtoo configutarion

make.conf

CFLAGS="-march=native -O2 -pipe -ftree-vectorize"
CXXFLAGS="${CFLAGS}"
MAKEOPTS="-j16"
L10N="pt-BR en-US"
LINGUAS="pt_BR en_US"
ACCEPT_LICENSE="*"
VIDEO_CARDS="dri3 amdgpu vulkan-amdgpu radeon xa vdpau xvmc"
PYTHON_TARGETS="python2_7 python3_7"
PYTHON_SINGLE_TARGET="python3_7"
USE="-examples -kde -qt4 -qt5 -doc -gnome -debug -vala -gnome-keyring \
     -policykit -ruby"

package.use

x11-libs/gtk+ X
x11-libs/pango X introspection
x11-libs/cairo X
x11-libs/libfm gtk
media-libs/libepoxy X
media-sound/pulseaudio alsa
media-plugins/alsa-plugins pulseaudio
www-client/firefox pulseaudio
x11-libs/gdk-pixbuf X jpeg jpeg2k tiff introspection
sys-kernel/debian-sources binary
dev-libs/glib dbus
sys-auth/consolekit policykit
media-libs/gd jpeg png fontconfig truetype tiff xpm webp
sys-boot/grub mount
media-libs/libpng apng
media-libs/libvpx postproc
net-libs/webkit X
x11-libs/gtk+ introspection
media-libs/gst-plugins-base X
net-libs/libsoup introspection
dev-libs/atk introspection
app-crypt/gcr gtk
app-crypt/libsecret -freedesktop-secret-service