dev-python/zstandard: Bump to 0.16.0

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/zstandard/Manifest

@@ -1 +1,2 @@
 DIST zstandard-0.15.2.tar.gz 1012864 BLAKE2B 3239a7003d8869182becbaf952b43da8923518e4b5202b115d59fc1492d26bf9703c1ea2dcf525459da023470c134c70525bd040a2d728d24861f7bc1e3a8948 SHA512 0102f3522145c80ec096e9dfac34a5bdd2a98b43b50b8c1e99bcfb0057904c551ababeeb82ced5f8b65945d42b39479cbc29472058679af1f8f91b68ae79f70f
+DIST zstandard-0.16.0.tar.gz 563633 BLAKE2B 8d896dcbd8ef9f9b28825d35792d02c3c447fa82ccef067deb925394c21da8f19a7faa4fbe84700fe5a0871af6d33d218c6134829d08eed93fd5ef43c3d0058c SHA512 f528cace58c1f1ec0fbea96e1646d92b05077ab6f5919eec07dc7b4fcfadf97dc848238928276fdb4333fb2cd035509af472ee352608661c3de681bc8dbed318

dev-python/zstandard/zstandard-0.16.0.ebuild

@@ -0,0 +1,42 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..10} pypy3 )
+
+inherit distutils-r1
+
+DESCRIPTION="Zstandard Bindings for Python"
+HOMEPAGE="https://pypi.org/project/zstandard/ https://github.com/indygreg/python-zstandard"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+SLOT="0"
+LICENSE="BSD"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+
+DEPEND="
+	app-arch/zstd:="
+RDEPEND="${DEPEND}
+	$(python_gen_cond_dep '>=dev-python/cffi-1.14.0-r2:=[${PYTHON_USEDEP}]' 'python*')
+"
+BDEPEND="
+	test? ( dev-python/hypothesis[${PYTHON_USEDEP}] )"
+
+distutils_enable_tests setup.py
+
+src_prepare() {
+	# the C backend is repeatedly broken, so force CFFI instead
+	sed -e '/PYTHON_ZSTANDARD_IMPORT_POLICY/s:default:cffi:' \
+		-i zstandard/__init__.py || die
+	# unreliable, fails on x86
+	sed -e 's:test_estimated_compression_context_size:_&:' \
+		-i tests/test_data_structures.py || die
+
+	distutils-r1_src_prepare
+
+	DISTUTILS_ARGS=(
+		--no-c-backend
+		--system-zstd
+	)
+}