/mnt/gentoo/etc/portage/make.conf   
 
CFLAGS="-march=skylake -O2 -pipe -fomit-frame-pointer"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
CPU_FLAGS_X86="CPU_FLAGS_X86: aes avx avx2 bmi1 bmi2 f16c fma3 mmx mmxext pclmul popcnt rdrand sse sse2 sse3 sse4>
"
RUSTFLAGS="${RUSTFLAGS} -C target-cpu=native"
MAKEOPTS="-j4"
INPUT_DEVICES="libinput"
VIDEO_CARDS="intel"
 
ACCEPT_LICENSE="*"