app-cdr/cuetools: port to EAPI 8

Signed-off-by: David Seifert <soap@gentoo.org>

app-cdr/cuetools/cuetools-1.4.1-r1.ebuild

@@ -1,9 +1,9 @@
-# Copyright 1999-2018 Gentoo Foundation
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=5
+EAPI=8
 
-inherit autotools eutils
+inherit autotools optfeature
 
 DESCRIPTION="Utilities to manipulate and convert cue and toc files"
 HOMEPAGE="https://github.com/svend/cuetools"
@@ -12,21 +12,21 @@ SRC_URI="https://github.com/svend/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="amd64 x86 ~amd64-linux ~x86-linux ~ppc-macos"
-IUSE="flac mp3 vorbis"
-
-RDEPEND="
-	flac? ( media-libs/flac )
-	mp3? ( media-sound/mp3info )
-	vorbis? ( media-sound/vorbis-tools )
-"
 
 src_prepare() {
+	default
 	eautoreconf
 }
 
 src_install() {
-	emake DESTDIR="${D}" install
-	dodoc AUTHORS NEWS README.md TODO
+	default
+
 	docinto extras
 	dodoc extras/{cueconvert.cgi,*.txt}
 }
+
+pkg_postinst() {
+	optfeature "FLAC support" 'media-libs/flac'
+	optfeature "MP3 support" 'media-sound/mp3info'
+	optfeature "Vorbis support" 'media-sound/vorbis-tools'
+}