Mine

# These settings were set by the catalyst build script that automatically built this stage
# Please consult /etc/make.conf.example for a more detailed example
CFLAGS="-O2 -march=i686 -pipe -g"
CHOST="i686-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"
VIDEO_CARDS="radeon"
INPUT_DEVICES="keyoard mouse evdev"
USE="dri nls pam -slp ssl GNOME -arts acl automount cups kerberos idap idapsam pam swat winbind"
ACCEPT_KEYWORDS="x86"
source /usr/portage/local/layman/make.conf