dev-cpp/scnlib: add 3.0.0

Signed-off-by: Steffen Winter <steffen.winter@proton.me>

dev-cpp/scnlib/scnlib-3.0.0.ebuild

@@ -0,0 +1,36 @@
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="scanf for modern C++ "
+HOMEPAGE="https://www.scnlib.dev/"
+SRC_URI="https://github.com/eliaskosunen/scnlib/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+
+BDEPEND="
+	dev-cpp/fast_float
+	test? ( dev-cpp/gtest )
+"
+
+RESTRICT="!test? ( test )"
+
+src_configure() {
+	local mycmakeargs=(
+		-DSCN_BENCHMARKS=OFF
+		-DSCN_BENCHMARKS_BINARYSIZE=OFF
+		-DSCN_BENCHMARKS_BUILDTIME=OFF
+		-DSCN_DOCS=OFF
+		-DSCN_EXAMPLES=$(usex test ON OFF)
+		-DSCN_TESTS=$(usex test ON OFF)
+		-DSCN_USE_EXTERNAL_FAST_FLOAT=ON
+		-DSCN_USE_EXTERNAL_GTEST=ON
+	)
+	cmake_src_configure
+}