1 files changed, 56 insertions, 0 deletions
diff --git a/dev-python/pyblake2/pyblake2-0.9.3-r1.ebuild b/dev-python/pyblake2/pyblake2-0.9.3-r1.ebuild
new file mode 100644
index 000000000000..9245471a8a72
--- /dev/null
+++ b/dev-python/pyblake2/pyblake2-0.9.3-r1.ebuild
@@ -0,0 +1,56 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} pypy )
+inherit distutils-r1 flag-o-matic toolchain-funcs
+
+DESCRIPTION="BLAKE2 hash function extension module"
+HOMEPAGE="https://github.com/dchest/pyblake2 https://pypi.python.org/pypi/pyblake2"
+SRC_URI="mirror://pypi/${PN::1}/${PN}/${P}.tar.gz"
+
+LICENSE="CC0-1.0"
+SLOT="0"
+KEYWORDS="~alpha amd64 ia64 ~mips ppc ppc64 ~sparc x86 ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+
+blake2_impl() {
+	local code='
+#if defined(__XOP__)
+	HAVE_XOP
+#elif defined(__AVX__)
+	HAVE_AVX
+#elif defined(__SSSE3__)
+	HAVE_SSSE3
+#elif defined(__SSE2__)
+	HAVE_SSE2
+#endif
+'
+	local res=$($(tc-getCC) -E -P ${CFLAGS} - <<<"${code}")
+
+	case ${res} in
+		*HAVE_XOP*)    echo XOP;;
+		# this does not actually do anything but implicitly enabled SSE4.1...
+		*HAVE_AVX*)    echo AVX;;
+		*HAVE_SSSE3*)  echo SSSE3;;
+		# note: SSE2 is 2.5x slower than pure REGS, so we ignore it
+		#*HAVE_SSE2*)  echo SSE2;;
+		*)             echo REGS;;
+	esac
+}
+
+python_prepare_all() {
+	# uncomment the implementation of choice
+	sed -i -e "/BLAKE2_COMPRESS_$(blake2_impl)/s:^#::" setup.py || die
+
+	distutils-r1_python_prepare_all
+}
+
+python_configure_all() {
+	# reported to break stuff, https://bugs.gentoo.org/638428
+	append-flags -fno-tree-vectorize
+}
+
+python_test() {
+	"${EPYTHON}" test/test.py || die "Tests fail with ${EPYTHON}"
+}