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{ stdenv
, buildPythonPackage
, fetchPypi
, cmake
, numpy
, scipy
, scikitlearn
, llvmPackages ? null
}:
buildPythonPackage rec {
pname = "lightgbm";
version = "2.3.1";
src = fetchPypi {
inherit pname version;
sha256 = "bd1817be401e74c0d8b049e97ea2f35d2ce155cfa130119ce4195ea207bd6388";
};
nativeBuildInputs = [
cmake
];
dontUseCmakeConfigure = true;
# we never actually explicitly call the install command so this is the only way
# to inject these options to it - however, openmp-library doesn't appear to have
# any effect, so we have to inject it into NIX_LDFLAGS manually below
postPatch = stdenv.lib.optionalString stdenv.cc.isClang ''
cat >> setup.cfg <<EOF
[install]
openmp-include-dir=${llvmPackages.openmp}/include
openmp-library=${llvmPackages.openmp}/lib/libomp.dylib
EOF
'';
propagatedBuildInputs = [
numpy
scipy
scikitlearn
];
postConfigure = ''
export HOME=$(mktemp -d)
'' + stdenv.lib.optionalString stdenv.cc.isClang ''
export NIX_LDFLAGS="$NIX_LDFLAGS -L${llvmPackages.openmp}/lib -lomp"
'';
# The pypi package doesn't distribute the tests from the GitHub
# repository. It contains c++ tests which don't seem to wired up to
# `make check`.
doCheck = false;
meta = with stdenv.lib; {
description = "A fast, distributed, high performance gradient boosting (GBDT, GBRT, GBM or MART) framework";
homepage = https://github.com/Microsoft/LightGBM;
license = licenses.mit;
maintainers = with maintainers; [ teh costrouc ];
};
}
|