forked from mirrors/nixpkgs
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.
45 lines
905 B
Nix
45 lines
905 B
Nix
{ lib
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, buildPythonPackage
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, fetchPypi
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, python
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, numpy
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}:
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buildPythonPackage rec {
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pname = "numexpr";
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version = "2.6.8";
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src = fetchPypi {
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inherit pname version;
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sha256 = "ee8bc7201aa2f1962c67d27c326a11eef9df887d7b87b1278a1d4e722bf44375";
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};
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# Remove existing site.cfg, use the one we built for numpy.
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preBuild = ''
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rm site.cfg
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ln -s ${numpy.cfg} site.cfg
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'';
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propagatedBuildInputs = [ numpy ];
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# Run the test suite.
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# It requires the build path to be in the python search path.
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checkPhase = ''
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pushd $out
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${python}/bin/${python.executable} <<EOF
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import sys
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import numexpr
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r = numexpr.test()
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if not r.wasSuccessful():
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sys.exit(1)
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EOF
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popd
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'';
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meta = {
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description = "Fast numerical array expression evaluator for NumPy";
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homepage = "https://github.com/pydata/numexpr";
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license = lib.licenses.mit;
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};
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}
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