anchor.diff:  
     patches = [ ./multistate.patch ];
   
  -  configureFlags = [ "--enable-openmp" ];
  +  configureFlags = [ "--enable-openmp" "--with-blas=-lopenblas" ];
   
     enableParallelBuilding = true;
   
  
positive.code:     ./genbs
    '';
  
    buildInputs = [ gfortran fftw protobuf liblapack
                    blas bzip2 zlib libxml2
                    flex bison ];
    nativeBuildInputs = [ automake autoconf libtool ];
  
    meta = {
  
negative.code: { stdenv, fetchurl, requireFile, gfortran, fftw, protobuf, openblas
  , automake, autoconf, libtool, zlib, bzip2, libxml2, flex, bison
  }:
  
  let
  