From c3e8a0f2587f714081e54509097d905be1baa9dd Mon Sep 17 00:00:00 2001
From: =?utf8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Sat, 21 Oct 2017 01:33:56 +0200
Subject: [PATCH] dev-python/pyblake2: Default to faster REGS variant

---
 dev-python/pyblake2/pyblake2-0.9.3.ebuild | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dev-python/pyblake2/pyblake2-0.9.3.ebuild b/dev-python/pyblake2/pyblake2-0.9.3.ebuild
index 37d5457bb6d5..79f80083bcb7 100644
--- a/dev-python/pyblake2/pyblake2-0.9.3.ebuild
+++ b/dev-python/pyblake2/pyblake2-0.9.3.ebuild
@@ -15,6 +15,17 @@ SLOT="0"
 KEYWORDS="~amd64 ~x86"
 IUSE=""
 
+python_prepare_all() {
+	local impl=REGS
+	# note: SSE2 is 2.5x slower than pure REGS...
+	# TODO: test other variants on some capable hardware
+
+	# uncomment the implementation of choice
+	sed -i -e "/BLAKE2_COMPRESS_${impl}/s:^#::" setup.py || die
+
+	distutils-r1_python_prepare_all
+}
+
 python_test() {
 	"${EPYTHON}" test/test.py || die "Tests fail with ${EPYTHON}"
 }
-- 
2.26.2