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diff --git a/sci-mathematics/relational/relational-2.5-r2.ebuild b/sci-mathematics/relational/relational-2.5-r2.ebuild
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+++ b/sci-mathematics/relational/relational-2.5-r2.ebuild
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+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6,7,8} )
+
+inherit python-single-r1
+
+DESCRIPTION="Educational tool for relational algebra"
+HOMEPAGE="https://ltworf.github.io/relational/"
+SRC_URI="https://github.com/ltworf/${PN}/releases/download/${PV}/${PN}_${PV}.orig.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+DEPEND="${PYTHON_DEPS}
+	$(python_gen_cond_dep '
+		dev-python/PyQt5[gui,widgets,${PYTHON_MULTI_USEDEP}]
+	')
+"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/${PN}"
+
+PATCHES=( "${FILESDIR}/${P}-no-qtwebkit.patch" )
+
+src_prepare() {
+	default
+
+	sed -i -e '/^Terminal=/ s/0/false/' \
+		-e '/^Keywords=/ s/$/;/' \
+		relational.desktop || die
+}
+
+src_install() {
+	emake -j1 DESTDIR="${ED}" install-{relational-cli,python3-relational,relational}
+	python_optimize
+
+	dodoc CHANGELOG complexity CREDITS README.md
+}