dev-embedded/etlcpp: new package, add 20.35.8

Signed-off-by: Jan Henke <Jan.Henke@taujhe.de>

dev-embedded/etlcpp/Manifest

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+DIST etlcpp-20.35.8.tar.gz 4413632 BLAKE2B b8292ea0395dbd0ef7d77d58dc2cb1cca16822da39054c1937e3f2a6b5828f9c2816e91b6c9ca4ef2088cdc691245d1aadf9f9c9283fa293265520c3fd4352db SHA512 d417760dd35ad5796f9ce8b7f96ac2d71f7b8e4896e5fc12e844912f34f867dee13582d2621521b5dfa66f21cd77abfd4e48a11e71fe87de2f98eaa6dcf6204f

dev-embedded/etlcpp/etlcpp-20.35.8.ebuild

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+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="A C++ template library for embedded applications"
+HOMEPAGE="https://www.etlcpp.com/"
+SRC_URI="https://github.com/ETLCPP/etl/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
+
+S="${WORKDIR}/etl-${PV}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+# Run-time dependencies. Must be defined to whatever this depends on to run.
+# Example:
+#    ssl? ( >=dev-libs/openssl-1.0.2q:0= )
+#    >=dev-lang/perl-5.24.3-r1
+# It is advisable to use the >= syntax show above, to reflect what you
+# had installed on your system when you tested the package.  Then
+# other users hopefully won't be caught without the right version of
+# a dependency.
+#RDEPEND=""
+
+# Build-time dependencies that need to be binary compatible with the system
+# being built (CHOST). These include libraries that we link against.
+# The below is valid if the same run-time depends are required to compile.
+#DEPEND="${RDEPEND}"
+
+# Build-time dependencies that are executed during the emerge process, and
+# only need to be present in the native build system (CBUILD). Example:
+#BDEPEND="virtual/pkgconfig"
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_TESTS=$(usex test)
+	)
+	cmake_src_configure
+}

dev-embedded/etlcpp/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">
+	<name>Jan Henke</name>
+    <email>gentoo@taujhe.de</email>
+    <description>Primary maintainer</description>
+  </maintainer>
+  <longdescription>
+	C++ is a great language to use for embedded applications and templates are
+	a powerful aspect. The standard library can offer a great deal of well
+	tested functionality, but there are some parts of the standard library that
+	do not fit well with deterministic behaviour and limited resource
+	requirements. These limitations usually preclude the use of dynamically
+	allocated memory and containers with open ended sizes.
+
+	What is needed is a template library where the user can declare the size,
+	or maximum size of any object upfront. Most embedded compilers do not
+	currently support the standard beyond C++ 03, therefore excluding the
+	programmer from	using the enhanced features of the later library.
+
+	This is what the ETL attempts to achieve.
+  </longdescription>
+</pkgmetadata>