6206a342e0
Since Intel's default openmp implementation is available in the same src tarball, we can just include it in the package. This means that `mkl` now "just works" without any environment variables, fragile setup-hooks, or forced propagation. Since the openmp implementation is only needed at runtime (and for test cases), users can substitute a different one if they prefer by exporting it with `LD_PRELOAD`, which is how Intel recommends handling this. If they do not do so, `libiomp.so` lives next to `libmkl_rt.so` and thus will be in the RPATH as a sane default. Since this still comes from the same src tarball, we can ship it without losing the fixed-output derivation; likewise, since Hydra is not building or caching these, shipping these proprietary packages costs no bandwidth for the nix community.
85 lines
2.3 KiB
Nix
85 lines
2.3 KiB
Nix
{ stdenv, lib, fetchPypi, python, buildPythonPackage, isPyPy, gfortran, pytest, blas, writeTextFile }:
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let
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blasImplementation = lib.nameFromURL blas.name "-";
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cfg = writeTextFile {
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name = "site.cfg";
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text = (lib.generators.toINI {} {
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"${blasImplementation}" = {
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include_dirs = "${blas}/include";
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library_dirs = "${blas}/lib";
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} // lib.optionalAttrs (blasImplementation == "mkl") {
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mkl_libs = "mkl_rt";
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lapack_libs = "";
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};
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});
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};
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in buildPythonPackage rec {
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pname = "numpy";
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version = "1.15.4";
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src = fetchPypi {
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inherit pname version;
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extension = "zip";
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sha256 = "3d734559db35aa3697dadcea492a423118c5c55d176da2f3be9c98d4803fc2a7";
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};
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disabled = isPyPy;
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nativeBuildInputs = [ gfortran pytest ];
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buildInputs = [ blas ];
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patches = lib.optionals (python.hasDistutilsCxxPatch or false) [
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# We patch cpython/distutils to fix https://bugs.python.org/issue1222585
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# Patching of numpy.distutils is needed to prevent it from undoing the
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# patch to distutils.
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./numpy-distutils-C++.patch
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];
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postPatch = lib.optionalString stdenv.hostPlatform.isMusl ''
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# Use fenv.h
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sed -i \
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numpy/core/src/npymath/ieee754.c.src \
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numpy/core/include/numpy/ufuncobject.h \
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-e 's/__GLIBC__/__linux__/'
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# Don't use various complex trig functions
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substituteInPlace numpy/core/src/private/npy_config.h \
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--replace '#if defined(__GLIBC__)' "#if 1" \
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--replace '#if !__GLIBC_PREREQ(2, 18)' "#if 1"
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'';
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preConfigure = ''
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sed -i 's/-faltivec//' numpy/distutils/system_info.py
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export NPY_NUM_BUILD_JOBS=$NIX_BUILD_CORES
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'';
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preBuild = ''
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ln -s ${cfg} site.cfg
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'';
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enableParallelBuilding = true;
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checkPhase = ''
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runHook preCheck
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pushd dist
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${python.interpreter} -c 'import numpy; numpy.test("fast", verbose=10)'
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popd
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runHook postCheck
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'';
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passthru = {
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blas = blas;
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inherit blasImplementation cfg;
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};
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# Disable two tests
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# - test_f2py: f2py isn't yet on path.
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# - test_large_file_support: takes a long time and can cause the machine to run out of disk space
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NOSE_EXCLUDE="test_f2py,test_large_file_support";
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meta = {
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description = "Scientific tools for Python";
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homepage = http://numpy.scipy.org/;
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maintainers = with lib.maintainers; [ fridh ];
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};
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}
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