dev-cpp/highway: add versioned ebuild, EAPI 8

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-cpp/highway/highway-9999.ebuild

@@ -1,7 +1,7 @@
 # Copyright 2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI="7"
+EAPI=8
 
 inherit cmake
 
@@ -18,18 +18,20 @@ fi
 
 LICENSE="Apache-2.0"
 SLOT="0"
-IUSE=""
+IUSE="test"
 
-DEPEND=""
+DEPEND="test? ( dev-cpp/gtest )"
 
-BDEPEND=""
-
-RDEPEND="${DEPEND}"
+PATCHES=( "${FILESDIR}/${PN}-shared-libraries.patch" )
+RESTRICT="!test? ( test )"
 
 src_configure() {
 	local mycmakeargs=(
-		-DBUILD_TESTING=OFF
+		-DBUILD_TESTING=$(usex test)
+		-DHWY_WARNINGS_ARE_ERRORS=OFF
 	)
 
+	use test && mycmakeargs+=( "-DHWY_SYSTEM_GTEST=ON" )
+
 	cmake_src_configure
 }