sci-libs/lemon: update EAPI 6 -> 8

Signed-off-by: Sam James <sam@gentoo.org>

sci-libs/lemon/lemon-1.3.1-r1.ebuild

@@ -0,0 +1,96 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Needed to build tests for now
+CMAKE_MAKEFILE_GENERATOR=emake
+inherit cmake
+
+DESCRIPTION="C++ template static library of common data structures and algorithms"
+HOMEPAGE="https://lemon.cs.elte.hu/trac/lemon/"
+SRC_URI="https://lemon.cs.elte.hu/pub/sources/${P}.tar.gz"
+
+LICENSE="Boost-1.0"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="+coin doc glpk static-libs test"
+RESTRICT="!test? ( test )"
+
+REQUIRED_USE="|| ( coin glpk )"
+
+RDEPEND="coin? (
+		sci-libs/coinor-cbc:=
+		sci-libs/coinor-clp:=
+	)
+	glpk? ( sci-mathematics/glpk:= )"
+DEPEND="${RDEPEND}"
+BDEPEND="doc? (
+		app-doc/doxygen
+		app-text/ghostscript-gpl
+		dev-libs/mathjax
+	)"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-multilib.patch
+	"${FILESDIR}"/${PN}-1.3-as-needed.patch
+)
+
+src_prepare() {
+	local t
+	for t in \
+		max_clique \
+		max_flow \
+		graph_utils \
+		random \
+		time_measure \
+		tsp; do
+		sed -i -e "/${t}_test/d" test/CMakeLists.txt || die
+	done
+
+	sed -i \
+		-e '/ADD_TEST(lp_test lp_test)/d' \
+		-e '/ADD_DEPENDENCIES(check lp_test)/d' \
+		test/CMakeLists.txt || die
+
+	cmake_comment_add_subdirectory demo
+
+	use doc || cmake_comment_add_subdirectory doc
+	use test || cmake_comment_add_subdirectory test
+
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DLEMON_ENABLE_COIN=$(usex coin)
+		-DLEMON_ENABLE_GLPK=$(usex glpk)
+	)
+
+	use coin && mycmakeargs+=( -DCOIN_ROOT_DIR="${EPREFIX}/usr" )
+
+	if use doc; then
+		mycmakeargs+=(
+			-DLEMON_DOC_MATHJAX_RELPATH="${EPREFIX}/usr/share/mathjax"
+			-DLEMON_DOC_SOURCE_BROWSER=$(usex doc)
+			-DLEMON_DOC_USE_MATHJAX=$(usex doc)
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_test() {
+	cd "${S}" || die
+	emake -C "${BUILD_DIR}" check
+}
+
+src_install() {
+	cmake_src_install
+
+	# TODO: Upstream needs to see the light of GNUInstallDirs
+	if use doc; then
+		mv "${ED}"/usr/share/doc/lemon/html "${ED}"/usr/share/doc/${PF} || die
+		rmdir "${ED}"/usr/share/doc/lemon || die
+	fi
+}