nixpkgs/pkgs/development/python-modules/cffi/default.nix

74 lines
2.1 KiB
Nix

{ lib
, stdenv
, buildPythonPackage
, isPyPy
, fetchPypi
, fetchpatch
, pytestCheckHook
, libffi
, pkg-config
, pycparser
, pythonAtLeast
}:
if isPyPy then null else buildPythonPackage rec {
pname = "cffi";
version = "1.15.1";
src = fetchPypi {
inherit pname version;
sha256 = "sha256-1AC/uaN7E1ElPLQCZxzqfom97MKU6AFqcH9tHYrJNPk=";
};
patches = [
#
# Trusts the libffi library inside of nixpkgs on Apple devices.
#
# Based on some analysis I did:
#
# https://groups.google.com/g/python-cffi/c/xU0Usa8dvhk
#
# I believe that libffi already contains the code from Apple's fork that is
# deemed safe to trust in cffi.
#
./darwin-use-libffi-closures.diff
] ++ lib.optionals (pythonAtLeast "3.11") [
# Fix test that failed because python seems to have changed the exception format in the
# final release. This patch should be included in the next version and can be removed when
# it is released.
(fetchpatch {
url = "https://foss.heptapod.net/pypy/cffi/-/commit/8a3c2c816d789639b49d3ae867213393ed7abdff.diff";
sha256 = "sha256-3wpZeBqN4D8IP+47QDGK7qh/9Z0Ag4lAe+H0R5xCb1E=";
})
];
postPatch = lib.optionalString stdenv.isDarwin ''
# Remove setup.py impurities
substituteInPlace setup.py \
--replace "'-iwithsysroot/usr/include/ffi'" "" \
--replace "'/usr/include/ffi'," "" \
--replace '/usr/include/libffi' '${lib.getDev libffi}/include'
'';
buildInputs = [ libffi ];
nativeBuildInputs = [ pkg-config ];
propagatedBuildInputs = [ pycparser ];
# The tests use -Werror but with python3.6 clang detects some unreachable code.
NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang
"-Wno-unused-command-line-argument -Wno-unreachable-code -Wno-c++11-narrowing";
doCheck = !stdenv.hostPlatform.isMusl;
checkInputs = [ pytestCheckHook ];
meta = with lib; {
maintainers = with maintainers; [ domenkozar lnl7 ];
homepage = "https://cffi.readthedocs.org/";
license = licenses.mit;
description = "Foreign Function Interface for Python calling C code";
};
}