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diff --git a/dev-gap/hap/hap-1.62.ebuild b/dev-gap/hap/hap-1.62.ebuild
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+++ b/dev-gap/hap/hap-1.62.ebuild
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+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit gap-pkg
+
+DESCRIPTION="Homological Algebra Programming (HAP) in GAP"
+SRC_URI="https://github.com/gap-packages/${PN}/releases/download/v${PV}/${P}.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="dev-gap/aclib
+	dev-gap/crystcat
+	dev-gap/fga
+	dev-gap/nq
+	dev-gap/polycyclic"
+
+# Singular: https://docs.gap-system.org/pkg/hap/doc/chap14.html
+# EDIM: https://docs.gap-system.org/pkg/hap/doc/chap11.html
+# congruence is needed for ResolutionSL2Z()
+# tst/testextra/3.6.1.tst calls LieAlgebra() from laguna
+# EquivariantEuclideanSpace() in tst/testallV11/1.8.1.tst needs hapcryst
+#
+# The imagemagick "convert" utility is used in a few places, and it does
+# actually need to be imagemagick (and not graphicsmagick) because e.g.
+# ReadImageAsPureCubicalComplex parses the comment that only imagemagick
+# puts at the top of a text file:
+#
+#   https://github.com/gap-packages/hap/issues/115
+#
+BDEPEND="test? (
+	dev-gap/congruence
+	dev-gap/edim
+	dev-gap/hapcryst
+	dev-gap/laguna
+	dev-gap/polymaking
+	dev-gap/singular
+	media-gfx/imagemagick[png]
+)"
+
+HTML_DOCS="www/* tutorial"
+
+GAP_PKG_EXTRA_INSTALL=( boolean )
+gap-pkg_enable_tests
+
+pkg_postinst() {
+	elog "Some optional functions require media-gfx/graphviz"
+	elog "to be installed at runtime."
+}