sci-libs/poselib: new package, add 2.0.4

Signed-off-by: Mårten Wadenbäck <marten@wadenback.se>

sci-libs/poselib/Manifest

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+DIST poselib-2.0.4.tar.gz 198206 BLAKE2B 483af5c2d4c825cb8d49e5f98df9a679de0e52f7e43fb0b87ae0f26f0b4f4373cbe0e252d68df0fcf4071b5384e80f45e2d28f48562250ca006caa5b92933601 SHA512 adc43c4f0fd8544d2c7ef05538696a8ae614837f5e90c31b8b9c8f4b5a11eb773229c22444e01482de697a0f5b3137d4a63a24ba9fcc72b366a347252d3c16b1

sci-libs/poselib/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>spamfilter-1@wadenback.se</email>
+    <name>Mårten Wadenbäck</name>
+  </maintainer>
+  <use>
+    <flag name="benchmark">Build the benchmark binary.</flag>
+  </use>
+  <upstream>
+    <remote-id type="github">PoseLib/PoseLib</remote-id>
+  </upstream>
+</pkgmetadata>

sci-libs/poselib/poselib-2.0.4.ebuild

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+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+MY_PN="PoseLib"
+
+DESCRIPTION="Minimal solvers for calibrated camera pose estimation "
+HOMEPAGE="https://github.com/PoseLib/PoseLib"
+SRC_URI="https://github.com/PoseLib/PoseLib/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+S="${WORKDIR}/${MY_PN}-${PV}"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+IUSE="benchmark"
+
+BDEPEND="dev-build/cmake"
+DEPEND="dev-cpp/eigen"
+RDEPEND="${DEPEND}"
+
+src_configure() {
+	local mycmakeargs=(
+		-DCMAKE_SKIP_RPATH=ON
+		-DWITH_BENCHMARK=$(usex benchmark)
+	)
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	if use benchmark; then
+		# As "benchmark" is a too generic name, let's make it more specific.
+		mv "${D}/usr/bin/benchmark" "${D}/usr/bin/poselib-benchmark" \
+			|| die "Failed to rename benchmark binary"
+	fi
+}