build/bin/bump_kernel_video_drivers

#!/bin/sh

# PLEASE READ:
# This script recompiles all the kernel-dependent video drivers for
# every currently supported kernel. You can use this script when
# you bump kernels or xorg-server.

kernels="2.6.36-sabayon 2.6.37-sabayon 2.6.38-sabayon 2.6.39-sabayon 3.0.0-sabayon 3.0.0-fusion"
running_kernel="3.0.0-sabayon"
packages="~x11-drivers/nvidia-drivers-173.14.31 ~x11-drivers/nvidia-drivers-96.43.20"
non_injected_packages="x11-drivers/nvidia-drivers x11-drivers/ati-drivers x11-drivers/xf86-video-virtualbox"
general_purpose_packages="media-video/amdcccle"
ETP_REPO="${ETP_REPO:-sabayon-limbo}"

for kernel in $kernels; do
        mypackages="${packages}"
        if [ "${kernel}" != "${running_kernel}" ]; then
                mypackages="${mypackages} ${non_injected_packages}"
        fi
        # build for latest kernel
        rm -rf /usr/portage/packages/x11-drivers/*
        KERNEL_DIR="/usr/src/linux-${kernel}" emerge -B ${mypackages} || exit 1
        eit fit /usr/portage/packages/x11-drivers/*
        echo
done

# Workout drivers for the running kernel, those non injected
eselect kernel set "linux-${running_kernel}" || exit 1
emerge ${non_injected_packages} ${general_purpose_packages} || exit 1
echo -5 | etc-update
eit add ${non_injected_packages} ${general_purpose_packages} || exit 1

echo "Now you should remove old packages, if you want of course"