My Funtoo's make.conf

make.conf

CHOST="x86_64-pc-linux-gnu"
CFLAGS="-march=ivybridge -O2 -pipe"
CXXFLAGS="${CFLAGS}"
CPU_FLAGS="avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3"

USE="X udev xorg xvfb glamor gallium zsh-completions egl nptl vaapi memcached mysql caps savedconfig json yaml
netbeans initramfs dri3 monolithic hwaccel threads usb cpudetection server pcap
pulseaudio openh264  gstreamer numa 10bit curl javascript cairo
startup-notification branding xfce libnotify ambiance truetype efiemu  openssl
cscope d3d9 clang gpm lua luajit perl tcl vim-pager jpeg jpeg2k tiff fontconfig
font-forge java opengl vim-syntax gtk gtk2 gtk3 bindist ruby ssh 256-color blink
fading-colors pixbuf unicode3 mysql gpg extras apache2 sync-plugin-portage -systemd -gnome -minimal"
VIDEO_CARDS="intel i965"
PYTHON_TARGETS="python2_7 python3_4"
GRUB_PLATFORM="efi-64"
L10N="en es es-AR"