--- /usr/portage/net-firewall/iptables/iptables-1.4.12.1-r1.ebuild	2012-01-07 00:16:38.000000000 +0100
+++ /usr/local/portage/net-firewall/iptables/iptables-1.4.12.1-r1.ebuild	2012-05-04 12:56:41.000000000 +0200
@@ -7,7 +7,7 @@
 # Force users doing their own patches to install their own tools
 AUTOTOOLS_AUTO_DEPEND=no
 
-inherit eutils toolchain-funcs autotools
+inherit eutils toolchain-funcs autotools linux-info
 
 DESCRIPTION="Linux kernel (2.4+) firewall, NAT and packet mangling tools"
 HOMEPAGE="http://www.iptables.org/"
@@ -15,8 +15,8 @@
 
 LICENSE="GPL-2"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
-IUSE="ipv6 netlink static-libs"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc x86"
+IUSE="ipv6 netlink static-libs ksource"
 
 RDEPEND="
 	netlink? ( net-libs/libnfnetlink )
@@ -33,7 +33,7 @@
 	eautomake
 
 	# use the saner headers from the kernel
-	rm -f include/linux/{kernel,types}.h
+	#rm -f include/linux/{kernel,types}.h
 
 	# Only run autotools if user patched something
 	epatch_user && eautoreconf || elibtoolize
@@ -50,7 +50,8 @@
 		--enable-libipq \
 		--enable-shared \
 		$(use_enable static-libs static) \
-		$(use_enable ipv6)
+		$(use_enable ipv6) \
+		$(use_with ksource kernel ${KERNEL_DIR})
 }
 
 src_compile() {