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# 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}/${P}.tar.gz"
# pyblake2 itself allows more licenses but blake2 allows the following three
LICENSE="|| ( CC0-1.0 openssl Apache-2.0 )"
SLOT="0"
KEYWORDS="~amd64 ~ia64 ~mips ~ppc ~ppc64 ~x86 ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
blake2_impl() {
local code='
#if defined(__XOP__)
HAVE_XOP
#elif defined(__AVX__)
HAVE_AVX
#elif defined(__SSSE3__)
HAVE_SSSE3
#elif defined(__SSE2__)
HAVE_SSE2
#endif
'
local res=$($(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_test() {
"${EPYTHON}" test/test.py || die "Tests fail with ${EPYTHON}"
}
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