1 files changed, 61 insertions, 0 deletions
diff --git a/dev-libs/gf2x/gf2x-1.3.0-r1.ebuild b/dev-libs/gf2x/gf2x-1.3.0-r1.ebuild
new file mode 100644
index 000000000000..bb6abab0ffb6
--- /dev/null
+++ b/dev-libs/gf2x/gf2x-1.3.0-r1.ebuild
@@ -0,0 +1,61 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools
+
+DESCRIPTION="C/C++ routines for fast arithmetic in GF(2)[x]"
+HOMEPAGE="https://gitlab.inria.fr/thome/gf2x/ https://gforge.inria.fr/projects/gf2x/"
+# The Gitlab release is missing the autotools files.
+SRC_URI="https://gforge.inria.fr/frs/download.php/38243/${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0/3" # soname major version, defined in configure.ac
+KEYWORDS="amd64 ~arm64 ppc ~ppc64 ~riscv x86 ~amd64-linux ~x86-linux ~ppc-macos"
+IUSE="fft static-libs custom-tune"
+IUSE_CPU_FLAGS=" pclmul sse2 sse3 sse4_1 ssse3"
+IUSE+=" ${IUSE_CPU_FLAGS// / cpu_flags_x86_}"
+
+PATCHES=(
+	"${FILESDIR}/fno-common.patch"
+	"${FILESDIR}/${P}-0001-src-tunefft.c-add-include-statement-for-MIN-and-MAX.patch"
+	"${FILESDIR}/${P}-configure-clang16.patch"
+)
+
+src_prepare() {
+	default
+	# fix for cross-compiling, avoid ABI detection
+	sed -e 's/VERIFY_WORDSIZE(\[$ABI\].*/echo "skipping ABI check"/' \
+		-e 's/AC_MSG_ERROR(\[already_t.*/echo "skipping ABI check"/' \
+		-i configure.ac || die
+	eautoreconf
+}
+
+src_configure() {
+	econf \
+		$(use_enable cpu_flags_x86_sse2 sse2) \
+		$(use_enable cpu_flags_x86_sse3 sse3) \
+		$(use_enable cpu_flags_x86_ssse3 ssse3) \
+		$(use_enable cpu_flags_x86_sse4_1 sse41) \
+		$(use_enable cpu_flags_x86_pclmul pclmul) \
+		$(use_enable fft fft-interface) \
+		$(use_enable static-libs static)
+}
+
+src_compile() {
+	emake
+	if use custom-tune; then
+		einfo "Starting tuning"
+		emake tune-lowlevel
+		emake tune-toom
+		use fft && emake tune-fft
+	fi
+}
+
+src_install() {
+	default
+	if ! use static-libs; then
+		find "${ED}" -name '*.la' -delete || die
+	fi
+}