Diff mercury-20.06.1 with a mercury-22.01

/usr/portage/dev-lang/mercury/mercury-22.01.ebuild 2023-10-09 14:52:29.468368350 +0300
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DESCRIPTION="Mercury is a modern general-purpose logic/functional programming language"
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HOMEPAGE="https://www.mercurylang.org/index.html"
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SRC_URI="https://dl.mercurylang.org/release-20.06/${MY_P}.tar.gz
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SRC_URI="https://dl.mercurylang.org/release/${MY_P}.tar.gz
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	https://dev.gentoo.org/~keri/distfiles/mercury/${P}-gentoo-patchset-${PATCHSET_VER}.tar.gz"
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LICENSE="GPL-2 LGPL-2"
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SLOT="0"
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KEYWORDS="~amd64 ~x86"
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IUSE="debug doc emacs erlang examples java mono profile readline threads trail"
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IUSE="debug doc emacs examples java mono profile readline threads trail"
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DEPEND="net-libs/libnsl:0=
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	readline? ( sys-libs/readline:= )
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	erlang? ( dev-lang/erlang )
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	java? ( >=virtual/jdk-1.8:* )
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	mono? ( dev-lang/mono )
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	doc? ( sys-apps/texinfo )"
......
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	local myconf
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	myconf="--libdir=/usr/$(get_libdir) \
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		$(use_enable mono csharp-grade) \
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		$(use_enable erlang erlang-grade) \
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		$(use_enable java java-grade) \
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		$(use_enable debug debug-grades) \
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		$(use_enable profile prof-grades) \
......
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	fi
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	dodoc \
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		BUGS HISTORY LIMITATIONS NEWS README README.Linux \
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		README.Linux-Alpha README.Linux-m68k README.Linux-PPC \
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		BUGS HISTORY LIMITATIONS.md NEWS README README.md \
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		README.Linux README.Linux-m68k README.Linux-PPC \
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		RELEASE_NOTES VERSION || die
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	if use erlang; then
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		dodoc README.Erlang
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	fi
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	if use java; then
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		dodoc README.Java
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	fi
Thank you!