## { stdenv, fetchgit, cmake, gfortran, pkg-config, openblas, hwloc, scotch, lapack } :
{ pkgs ? import <nixpkgs> {} }:
pkgs.stdenv.mkDerivation rec {
    name = "calculix";
    version = "2.22";
    src = pkgs.fetchurl {
        url = "http://www.dhondt.de/ccx_${version}.src.tar.bz2";
        hash = "";
    };
    enableParallelBuilding = true;

    nativeBuildInputs = with pkgs; [ 
      gfortran
      arpack
      spooles
    ];

    buildInputs =  with pkgs; [
      openblas
      hwloc
      scotch
      lapack #-ilp64
      python3
    ];

#    postPatch = ''
#      substituteInPlace doc/*.sh \
#        --replace "#!/bin/bash" ""
#    '';

    configurePhase = ''
    '';

    buildPhase = ''
      cd ./CalculiX/ccx_${version}/src
      make -I ${pkgs.spooles}/include/spooles
    '';
}