dev-embedded/etlcpp: new package, add 20.35.8

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

dev-embedded/etlcpp/etlcpp-20.35.8.ebuild

@@ -0,0 +1,44 @@
+# 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
+}