kernel="${1}"

if [ "${kernel}" = "" ]; then
  echo "Please specify a kernel\n";
  eselect kernel list;
  exit;
fi

sudo eselect kernel set "${kernel}"

cd /usr/src/linux 
make mrproper defconfig

cd -
"$(dirname "$0")/configure.sh"

cd /usr/src/linux;
make KCFLAGS="-march=native" -j "$(nproc)" olddefconfig all

dracut --host-only --no-kernel
(mountpoint -q /boot || mount /boot)
make install modules_install && grub-mkconfig -o /boot/grub/grub.cfg
emerge -avtq  @{x11-,}module-rebuild