nvidia: add patch for linux>=3.8.

srcpkgs/nvidia/files/linux-3.8.patch

@@ -0,0 +1,10 @@
+--- kernel/conftest.sh.orig
++++ kernel/conftest.sh
+@@ -160,6 +160,7 @@ build_cflags() {
+
+     if [ "$ARCH" = "i386" -o "$ARCH" = "x86_64" ]; then
+         CFLAGS="$CFLAGS -I$SOURCES/arch/x86/include"
++        CFLAGS="$CFLAGS -I$SOURCES/arch/x86/include/uapi"
+         CFLAGS="$CFLAGS -I$OUTPUT/arch/x86/include/generated"
+         CFLAGS="$CFLAGS -I$OUTPUT/arch/x86/include/generated/uapi"
+     elif [ "$ARCH" = "arm" ]; then

srcpkgs/nvidia/template

@@ -1,7 +1,7 @@
 # Template file for 'nvidia'
 pkgname=nvidia
 version=313.18
-revision=3
+revision=4
 short_desc="NVIDIA non free driver for linux -- libraries and utilities"
 maintainer="Juan RP <xtraeme@gmail.com>"
 license="Propietary NVIDIA license"
@@ -33,7 +33,7 @@ do_extract() {
 do_install() {
 	cd ${_pkg}
 
-	sed -i -e "s,\(SUBLEVEL -le\) 5,\1 20," kernel/conftest.sh
+	patch -Np0 -i ${FILESDIR}/linux-3.8.patch
 
 	# X driver
 	vinstall nvidia_drv.so 755 usr/lib/xorg/modules/drivers