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https://github.com/CHN-beta/nixpkgs.git
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c8ece5516e
Lots of python packages seem to ship their source distributions with generated code. In recent cython versions there is a way to force a regeneration of these files and using it sounds generally sounds like a good thing. If it turns out, that this causes problems on individual packages, setting `dontForceRegenCython` will prevent the regeneration. Added in 3.0.0a11 and backported to 2.9.34, so both cython versions we ship right now support this flag.
89 lines
3.0 KiB
Nix
89 lines
3.0 KiB
Nix
{ lib
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, stdenv
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, buildPythonPackage
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, fetchPypi
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, fetchpatch
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, python
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, pkg-config
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, gdb
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, numpy
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, ncurses
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}:
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let
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excludedTests = [ "reimport_from_subinterpreter" ]
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# cython's testsuite is not working very well with libc++
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# We are however optimistic about things outside of testsuite still working
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++ lib.optionals (stdenv.cc.isClang or false) [ "cpdef_extern_func" "libcpp_algo" ]
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# Some tests in the test suite isn't working on aarch64. Disable them for
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# now until upstream finds a workaround.
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# Upstream issue here: https://github.com/cython/cython/issues/2308
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++ lib.optionals stdenv.isAarch64 [ "numpy_memoryview" ]
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++ lib.optionals stdenv.isi686 [ "future_division" "overflow_check_longlong" ]
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;
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in buildPythonPackage rec {
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pname = "cython";
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version = "0.29.34";
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src = fetchPypi {
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pname = "Cython";
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inherit version;
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hash = "sha256-GQloj117Uhpgw5bSC7qeR6Gy0nhL+whUAeHh59KaKag=";
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};
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nativeBuildInputs = [
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pkg-config
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];
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nativeCheckInputs = [
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gdb numpy ncurses
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];
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LC_ALL = "en_US.UTF-8";
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patches = [
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# backport Cython 3.0 trashcan support (https://github.com/cython/cython/pull/2842) to 0.X series.
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# it does not affect Python code unless the code explicitly uses the feature.
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# trashcan support is needed to avoid stack overflows during object deallocation in sage (https://trac.sagemath.org/ticket/27267)
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./trashcan.patch
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# The above commit introduces custom trashcan macros, as well as
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# compiler changes to use them in Cython-emitted code. The latter
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# change is still useful, but the former has been upstreamed as of
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# Python 3.8, and the patch below makes Cython use the upstream
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# trashcan macros whenever available. This is needed for Python
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# 3.11 support, because the API used in Cython's implementation
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# changed: https://github.com/cython/cython/pull/4475
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(fetchpatch {
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name = "disable-trashcan.patch";
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url = "https://github.com/cython/cython/commit/e337825cdcf5e94d38ba06a0cb0188e99ce0cc92.patch";
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hash = "sha256-q0f63eetKrDpmP5Z4v8EuGxg26heSyp/62OYqhRoSso=";
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})
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];
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checkPhase = ''
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export HOME="$NIX_BUILD_TOP"
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${python.interpreter} runtests.py -j$NIX_BUILD_CORES \
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--no-code-style \
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${lib.optionalString (builtins.length excludedTests != 0)
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''--exclude="(${builtins.concatStringsSep "|" excludedTests})"''}
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'';
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# https://github.com/cython/cython/issues/2785
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# Temporary solution
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doCheck = false;
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# doCheck = !stdenv.isDarwin;
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# force regeneration of generated code in source distributions
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# https://github.com/cython/cython/issues/5089
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setupHook = ./setup-hook.sh;
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meta = {
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changelog = "https://github.com/cython/cython/blob/${version}/CHANGES.rst";
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description = "An optimising static compiler for both the Python programming language and the extended Cython programming language";
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homepage = "https://cython.org";
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license = lib.licenses.asl20;
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maintainers = with lib.maintainers; [ fridh ];
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};
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}
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