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diff --git a/dev-haskell/alex/alex-3.1.3.ebuild b/dev-haskell/alex/alex-3.1.3.ebuild
new file mode 100644
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+# Copyright 1999-2014 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+# ebuild generated by hackport 0.3.4.9999
+
+CABAL_FEATURES="bin test-suite"
+inherit autotools haskell-cabal
+
+DESCRIPTION="Alex is a tool for generating lexical analysers in Haskell"
+HOMEPAGE="http://www.haskell.org/alex/"
+SRC_URI="mirror://hackage/packages/archive/${PN}/${PV}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="alpha amd64 ~ia64 ppc ppc64 sparc x86"
+IUSE="doc"
+
+RDEPEND=""
+DEPEND="${RDEPEND}
+	>=dev-haskell/cabal-1.8
+	>=dev-haskell/quickcheck-2
+	>=dev-lang/ghc-6.10.4
+	doc? ( ~app-text/docbook-xml-dtd-4.2
+		app-text/docbook-xsl-stylesheets
+		>=dev-libs/libxslt-1.1.2 )"
+
+src_prepare() {
+	# drop depend on itself and happy, otherwise cabal tries to regenerate it
+	rm src/{Scan.x,Parser.y} || die
+
+	for f in Scan Parser; do
+		mv "${S}/dist/build/alex/alex-tmp/$f.hs" "${S}"/src/ || die
+	done
+
+	if use doc; then
+		cd "${S}/doc/"
+		eautoreconf
+	fi
+}
+
+src_configure() {
+	# make sure we don't accidentally use those
+	# installed in system
+	haskell-cabal_src_configure \
+		--with-alex=false \
+		--with-happy=false
+
+	if use doc; then
+		cd "${S}/doc/"
+		econf
+	fi
+}
+
+src_compile() {
+	cabal_src_compile
+
+	if use doc; then
+		emake -C "${S}/doc/" -j1
+	fi
+}
+
+src_install() {
+	cabal_src_install
+
+	if use doc; then
+		doman "${S}/doc/alex.1"
+		dohtml -r "${S}/doc/alex/"
+	fi
+	dodoc README
+}