From: Michał Górny <mgorny@gentoo.org>
Date: Fri, 20 Oct 2017 23:33:56 +0000 (+0200)
Subject: dev-python/pyblake2: Default to faster REGS variant
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=c3e8a0f2587f714081e54509097d905be1baa9dd;p=gentoo.git

dev-python/pyblake2: Default to faster REGS variant
---

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}"
 }