PATCH_NAME=`lynx --dump http://grsecurity.net/latest_stable_patch | grep grsec`
KERNEL_VERSION=`echo "$PATCH_NAME" | cut -d'-' -f3`
KERNEL_TARBALL="linux-$KERNEL_VERSION.tar.gz"
KERNEL_URL="http://mirror.anl.gov/pub/linux/kernel/v2.6/$KERNEL_TARBALL"
PATCH_URL="http://grsecurity.net/stable/$PATCH_NAME"

if [ ! -f "$PATCH_NAME" ]; then
wget "$PATCH_URL"
if [ ! -f "$KERNEL_TARBALL" ]; then
wget "$KERNEL_URL"
fi
if [ -d "linux-$KERNEL_VERSION" ]; then
rm -rf "linux-$KERNEL_VERSION"
fi
tar -zxf "$KERNEL_TARBALL"
patch -p0 < "$PATCH_NAME"
cd "linux-$KERNEL_VERSION"
cp /linuxconfig ./.config
yes '' | make oldconfig
cd ..
fi
cd "linux-$KERNEL_VERSION"
make -j2