sci-chemistry/cluster: Port to EAPI 8

Signed-off-by: Jakov Smolić <jsmolic@gentoo.org>

sci-chemistry/cluster/cluster-1.3.081231-r1.ebuild

@@ -1,26 +1,27 @@
 # Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=5
+EAPI=8
 
-inherit epatch toolchain-funcs
+inherit toolchain-funcs
 
 DESCRIPTION="Build lists of collections of interacting items"
 HOMEPAGE="http://kinemage.biochem.duke.edu/software/index.php"
 SRC_URI="http://kinemage.biochem.duke.edu/downloads/software/${PN}/${PN}.${PV}.src.tgz"
-
-SLOT="0"
-LICENSE="richardson"
-KEYWORDS="amd64 x86 ~amd64-linux ~x86-linux"
-IUSE=""
-
 S="${WORKDIR}"/${PN}1.3src
 
-src_prepare() {
-	epatch \
-		"${FILESDIR}"/${PV}-ldflags.patch \
-		"${FILESDIR}"/${PV}-includes.patch
+LICENSE="richardson"
+SLOT="0"
+KEYWORDS="amd64 x86 ~amd64-linux ~x86-linux"
+
+PATCHES=(
+	"${FILESDIR}"/${PV}-ldflags.patch
+	"${FILESDIR}"/${PV}-includes.patch
+)
+
+src_configure() {
 	tc-export CXX
+	default
 }
 
 src_install() {