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{ lib
, stdenv
, fetchFromGitLab
, fetchpatch
, cmake
}:
stdenv.mkDerivation rec {
pname = "eigen";
version = "3.4.0";
src = fetchFromGitLab {
owner = "libeigen";
repo = pname;
rev = version;
sha256 = "sha256-1/4xMetKMDOgZgzz3WMxfHUEpmdAm52RqZvz6i0mLEw=";
};
patches = [
./include-dir.patch
# Fixes e.g. onnxruntime on aarch64-darwin:
# https://hydra.nixos.org/build/248915128/nixlog/1,
# originally suggested in https://github.com/NixOS/nixpkgs/pull/258392.
#
# The patch is from
# ["Fix vectorized reductions for Eigen::half"](https://gitlab.com/libeigen/eigen/-/merge_requests/699)
# which is two years old,
# but Eigen hasn't had a release in two years either:
# https://gitlab.com/libeigen/eigen/-/issues/2699.
(fetchpatch {
url = "https://gitlab.com/libeigen/eigen/-/commit/d0e3791b1a0e2db9edd5f1d1befdb2ac5a40efe0.patch";
hash = "sha256-8qiNpuYehnoiGiqy0c3Mcb45pwrmc6W4rzCxoLDSvj0=";
})
];
nativeBuildInputs = [ cmake ];
meta = with lib; {
homepage = "https://eigen.tuxfamily.org";
description = "C++ template library for linear algebra: vectors, matrices, and related algorithms";
license = licenses.lgpl3Plus;
maintainers = with maintainers; [ sander raskin ];
platforms = platforms.unix;
};
}
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