dev-cpp/gemmlowp: add 0_pre20211220, drop 0_p20211220

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

dev-cpp/gemmlowp/gemmlowp-0_pre20211220.ebuild

@@ -0,0 +1,30 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+COMMIT="e844ffd17118c1e17d94e1ba4354c075a4577b88"
+
+inherit cmake
+
+DESCRIPTION="Low-precision matrix multiplication"
+HOMEPAGE="https://github.com/google/gemmlowp"
+SRC_URI="https://github.com/google/${PN}/archive/${COMMIT}.tar.gz -> ${PF}.tar.gz"
+S="${WORKDIR}/${PN}-${COMMIT}/contrib"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+
+RDEPEND=""
+DEPEND="${RDEPEND}"
+
+RESTRICT="!test? ( test )"
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_TESTING=$(usex test)
+	)
+	cmake_src_configure
+}