app-portage/time64-prep: Add package, v1

This is the helper package for transitioning 32-bit systems to 64-bit
time_t.

Signed-off-by: Michał Górny <mgorny@gentoo.org>

app-portage/time64-prep/Manifest

@@ -0,0 +1 @@
+DIST time64-prep-1.gh.tar.gz 11439 BLAKE2B 0848d97bb5b6f0df7b7346f5e55670d5b13b6b09fd9427dcbcb67802e5206e440c75f170fd2025b81659fcb4adc0ddb60712fdb726f8e006c0e78012fb51f010 SHA512 ff6c12cf1487695a395c364ba4efde81d9b821cbcf954a705bc38e3908fcc835da77409276fdbfd590562d9778b1f85e7b519904d204d73d44632e6a497e0865

app-portage/time64-prep/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>mgorny@gentoo.org</email>
+		<name>Michał Górny</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">projg2/time64-prep</remote-id>
+	</upstream>
+</pkgmetadata>

app-portage/time64-prep/time64-prep-1.ebuild

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+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+
+inherit python-single-r1
+
+DESCRIPTION="A tool to prepare for (comparatively) safe time64 transition"
+HOMEPAGE="https://github.com/projg2/time64-prep/"
+SRC_URI="
+	https://github.com/projg2/time64-prep/archive/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz
+"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~x86"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	dev-util/patchelf
+	$(python_gen_cond_dep '
+		dev-python/pyelftools[${PYTHON_USEDEP}]
+		sys-apps/portage[${PYTHON_USEDEP}]
+	')
+"
+BDEPEND="
+	${PYTHON_DEPS}
+"
+
+src_install() {
+	python_doscript time64-prep
+	einstalldocs
+}