anchor.diff:  { stdenv, fetchFromGitHub, which, openssh, gcc, gfortran, perl, gnumake
  -,  openmpi, openblas, python, tcsh, git, bash, automake, autoconf, libtool } :
  +, openmpi, openblas, python, tcsh, git, bash, automake, autoconf, libtool, makeWrapper } :
   let
     version = "6.8";
   
  
positive.code:       #make 64_to_32
      '';
  
      installPhase = ''
        mkdir -p $out/bin $out/share/nwchem
  
        cp $NWCHEM_TOP/bin/LINUX64/nwchem $out/bin
  
        cp -r $NWCHEM_TOP/src/data $out/share/nwchem
  
        cp -r $NWCHEM_TOP/src/basis/libraries $out/share/nwchem
  
        cp -r $NWCHEM_TOP/QA $out/share/nwchem
      '';
  
      checkPhase = ''
        cd $NWCHEM_TOP/QA
        ./doqmtests.mpi 1 fast
      '';
  
      doCheck=true;
  
      meta = {
        description = "Quantum chemistry program";
  
negative.code:     };
  
  #hardeningDisable = [ "format" ];
      nativeBuildInputs = [ perl automake autoconf libtool makeWrapper ];
      buildInputs = [ tcsh openssh which gfortran openmpi openblas which python ];
  
  
  