dev-libs/vectorscan: new package, add 5.4.11

vectorscan is more portable drop-in replacement of hyperscan.

Signed-off-by: Petr Vaněk <arkamar@gentoo.org>

3 files changed, 99 insertions, 0 deletions

diff --git a/dev-libs/vectorscan/Manifest b/dev-libs/vectorscan/Manifest
new file mode 100644
index 000000000000..7919322c4dca
--- /dev/null
+++ b/dev-libs/vectorscan/Manifest
@@ -0,0 +1 @@
+DIST vectorscan-5.4.11.tar.gz 1895332 BLAKE2B a8f5a1230af0ddf7d9fb9299769ec1736d37ac3284f6a98b1e650af461206cf459eac35d13a47beb6683786c6529539b2d082edf426e7d4890ed11804c76268b SHA512 ed74e441c1106a90b344898320d20b74726db86af338dee8c908db941a88e73355ca87c6d64e212eb860bf76a96121021ebaabd48ce359b47634caaee9df3e5e
diff --git a/dev-libs/vectorscan/metadata.xml b/dev-libs/vectorscan/metadata.xml
new file mode 100644
index 000000000000..45e25fefd6d7
--- /dev/null
+++ b/dev-libs/vectorscan/metadata.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>arkamar@gentoo.org</email>
+		<name>Petr Vaněk</name>
+	</maintainer>
+	<longdescription>
+		A fork of Intel's Hyperscan, modified to run on more platforms.
+		Currently ARM NEON/ASIMD is 100% functional, and Power VSX are in
+		development. ARM SVE2 support is in ongoing with access to hardware now.
+		More platforms will follow in the future.
+
+		Vectorscan follows Intel's API and internal algorithms where
+		possible, but will not hesitate to make code changes where it is thought
+		of giving better performance or better portability.
+	</longdescription>
+	<slots>
+		<subslots>libhs soname version</subslots>
+	</slots>
+	<upstream>
+		<remote-id type="github">VectorCamp/vectorscan</remote-id>
+	</upstream>
+</pkgmetadata>
diff --git a/dev-libs/vectorscan/vectorscan-5.4.11.ebuild b/dev-libs/vectorscan/vectorscan-5.4.11.ebuild
new file mode 100644
index 000000000000..b047e39dd69f
--- /dev/null
+++ b/dev-libs/vectorscan/vectorscan-5.4.11.ebuild
@@ -0,0 +1,74 @@
+# Copyright 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake edo flag-o-matic
+
+DESCRIPTION="A portable fork of the high-performance regular expression matching library"
+HOMEPAGE="
+	https://www.vectorcamp.gr/vectorscan/
+	https://github.com/VectorCamp/vectorscan
+"
+SRC_URI="
+	https://github.com/VectorCamp/vectorscan/archive/refs/tags/${PN}/${PV}.tar.gz
+		-> ${P}.tar.gz
+"
+
+S="${WORKDIR}/${PN}-${P}"
+
+LICENSE="BSD"
+SLOT="0/5"
+KEYWORDS="~amd64"
+IUSE="cpu_flags_x86_avx2 cpu_flags_x86_sse4_2"
+
+DEPEND="
+	dev-libs/boost:=
+"
+RDEPEND="
+	${DEPEND}
+	!dev-libs/hyperscan
+"
+BDEPEND="
+	dev-util/ragel
+	virtual/pkgconfig
+"
+
+REQUIRED_USE="
+	x86? ( cpu_flags_x86_sse4_2 )
+	amd64? ( cpu_flags_x86_sse4_2 )
+"
+
+src_prepare() {
+	local sedargs=(
+		# Respect user -m flags (march/mtune)
+		-e '/set(ARCH_CX*_FLAG/d'
+		# Respect user -O flags
+		-e '/set(OPT_CX*_FLAG/d'
+	)
+	sed -i "${sedargs[@]}" CMakeLists.txt cmake/cflags-x86.cmake || die
+	cmake_src_prepare
+}
+
+src_configure() {
+	use cpu_flags_x86_avx2 && append-flags -mavx2
+	use cpu_flags_x86_sse4_2 && append-flags -msse4.2
+
+	local mycmakeargs=(
+		-DBUILD_BENCHMARKS=OFF
+		-DBUILD_EXAMPLES=OFF
+		-DBUILD_SHARED_LIBS=ON
+
+		-DBUILD_AVX2=$(usex cpu_flags_x86_avx2)
+
+		-DUSE_CPU_NATIVE=OFF
+	)
+	cmake_src_configure
+}
+
+src_test() {
+	# The unit target cannot be used currently due to a bug in it,
+	# see https://github.com/VectorCamp/vectorscan/issues/202
+	#cmake_build unit
+	edo "${BUILD_DIR}/bin/unit-hyperscan"
+}