diff --git a/sys-devel/llvm/llvm-2.8-r2.ebuild b/sys-devel/llvm/llvm-2.8-r2.ebuild
index 5d56e49..87cc797 100644
--- a/sys-devel/llvm/llvm-2.8-r2.ebuild
+++ b/sys-devel/llvm/llvm-2.8-r2.ebuild
@@ -12,7 +12,7 @@ HOMEPAGE="http://llvm.org/"
 SRC_URI="http://llvm.org/releases/${PV}/${P}.tgz -> ${P}-r1.tgz"
 
 LICENSE="UoI-NCSA"
-SLOT="0"
+SLOT="${PV}"
 KEYWORDS="amd64 ppc x86 ~amd64-linux ~x86-linux ~ppc-macos"
 IUSE="debug +libffi llvm-gcc multitarget ocaml test udis86"
 
@@ -25,7 +25,9 @@ DEPEND="dev-lang/perl
 	libffi? ( virtual/libffi )
 	ocaml? ( dev-lang/ocaml )
 	udis86? ( dev-libs/udis86[pic(+)] )"
-RDEPEND="dev-lang/perl"
+RDEPEND="dev-lang/perl
+	app-admin/eselect-llvm"
+
 
 S=${WORKDIR}/${PN}-${PV/_pre*}
 
@@ -75,7 +77,7 @@ src_prepare() {
 		-i tools/llvm-config/llvm-config.in.in || die "llvm-config sed failed"
 
 	einfo "Fixing rpath and CFLAGS"
-	sed -e 's,\$(RPATH) -Wl\,\$(\(ToolDir\|LibDir\)),$(RPATH) -Wl\,'"${EPREFIX}"/usr/$(get_libdir)/${PN}, \
+	sed -e "s@\$(RPATH) -Wl,\$(\(ToolDir\|LibDir\))@\$(RPATH) -Wl,'${EPREFIX}/usr/$(get_libdir)/${PN}-${SLOT}'@" \
 		-e '/OmitFramePointer/s/-fomit-frame-pointer//' \
 		-i Makefile.rules || die "rpath sed failed"
 
@@ -157,27 +159,110 @@ src_compile() {
 src_install() {
 	emake KEEP_SYMBOLS=1 DESTDIR="${D}" install || die "install failed"
 
+	# Register slot for app-admin/eselect-llvm
+	local eselect_dir="/usr/share/eselect-llvm/slots/${SLOT}"
+	dodir "${eselect_dir}"
+	eselect_dir="${ED}/${eselect_dir}"
+	echo "${CATEGORY}/${PF}" > "${eselect_dir}/ebuild"
+
+	with_slot_suffix() {
+		local file=$(echo "$1" | sed -e "s/-${SLOT}//")
+		local ext=""
+		if [[ "${file}" =~ \. ]] ; then
+			ext=".${file#*.}"
+		fi
+		local base="${file%%.*}"
+		echo "${base}-${SLOT}${ext}"
+	}
+
+	make_versioned() {
+		local dir=$1
+		local candidates=(${ED%/}/${dir})
+		if [[ ! ${dir##*/} ]] ; then
+			dir=${dir%/}
+			candidates=( "${candidates}"* )
+		else
+			dir=$(dirname "${dir}")
+		fi
+
+		pushd ${ED%/}/${dir} >/dev/null || die
+
+		local candidate
+		for candidate in "${candidates[@]}" ; do
+			if [[ -h "${candidate}" ]] ; then
+				# Add slot suffix to symlink target
+				local target=$(readlink -s "${candidate}")
+				local slotted_target=$(with_slot_suffix "${target}")
+				if [[ -e "${target}" ]] || [[ -e "${slotted_target}" ]] ; then
+					ln -sf "${slotted_target}" "${candidate}" \
+						|| die "Could not update symlink"
+				fi
+			fi
+
+			local base_name=$(basename "${candidate}")
+			local slotted_name=$(with_slot_suffix "${base_name}")
+			mv "${candidate}" "${ED}/${dir}/${slotted_name}" \
+				|| die "Could not rename ${candidate} to ${slotted_name}"
+			echo "/${dir#/}/${base_name}" >> "${eselect_dir}/versioned"
+		done
+
+		popd >/dev/null || die
+	}
+
+	# Trailing slash => version the content
+	# No trailing slash => version the directory itself
+	local paths=(
+		/usr/bin/
+		/usr/$(get_libdir)/
+		/usr/include/
+		/usr/share/man/man1/
+	)
+	use vim-syntax && paths+=( /usr/share/vim/vimfiles/syntax/ )
+
+	local path
+	for path in "${paths[@]}" ; do
+		make_versioned "${path}"
+	done
+
 	# Fix install_names on Darwin.  The build system is too complicated
 	# to just fix this, so we correct it post-install
 	local lib= f= odylib=
 	if [[ ${CHOST} == *-darwin* ]] ; then
 		for lib in lib{EnhancedDisassembly,LLVM-${PV},BugpointPasses,LLVMHello,LTO,profile_rt}.dylib ; do
 			# libEnhancedDisassembly is Darwin10 only, so non-fatal
-			[[ -f ${ED}/usr/lib/${PN}/${lib} ]] || continue
+			[[ -f ${ED}/usr/lib/${PN}-${SLOT}/${lib} ]] || continue
 			ebegin "fixing install_name of $lib"
 			install_name_tool \
-				-id "${EPREFIX}"/usr/lib/${PN}/${lib} \
-				"${ED}"/usr/lib/${PN}/${lib}
+				-id "${EPREFIX}"/usr/lib/${PN}-${SLOT}/${lib} \
+				"${ED}"/usr/lib/${PN}-${SLOT}/${lib}
 			eend $?
 		done
-		for f in "${ED}"/usr/bin/* "${ED}"/usr/lib/${PN}/libLTO.dylib ; do
+		for f in "${ED}"/usr/bin/* "${ED}"/usr/lib/${PN}-${SLOT}/libLTO.dylib ; do
 			odylib=$(scanmacho -BF'%n#f' "${f}" | tr ',' '\n' | grep libLLVM-${PV}.dylib)
 			ebegin "fixing install_name reference to ${odylib} of ${f##*/}"
 			install_name_tool \
 				-change "${odylib}" \
-					"${EPREFIX}"/usr/lib/${PN}/libLLVM-${PV}.dylib \
+					"${EPREFIX}"/usr/lib/${PN}-${SLOT}/libLLVM-${PV}.dylib \
 				"${f}"
 			eend $?
 		done
 	fi
 }
+
+pkg_postinst() {
+	if [[ $(eselect ${PN} show) = "(none)" ]] ; then
+		eselect ${PN} set ${SLOT}
+	fi
+}
+
+pkg_prerm() {
+	if [[ $(eselect ${PN} show) = ${SLOT} ]] ; then
+		eselect ${PN} clear
+	fi
+}
+
+pkg_postrm() {
+	if [[ -z ${REPLACED_BY_VERSION} ]] ; then
+		eselect ${PN} update
+	fi
+}