anchor.diff:  
   
         # Overwrite script, skipping the download
  -      echo -e '#!/bin/sh\n cd ga-5.6.3;autoreconf -ivf' > src/tools/get-tools-github
  +      echo -e '#!/bin/sh\n cd ga-${versionGA};autoreconf -ivf' > src/tools/get-tools-github
   
         patchShebangs ./
   
  
positive.code: { stdenv, pkgs, fetchFromGitHub, which, openssh, gcc, gfortran, perl, gnumake
  , mpi ? pkgs.openmpi, openblas, python, tcsh, git, bash, automake, autoconf, libtool, makeWrapper } :
  let
    version = "6.8";
    versionGA = "5.6.3"; # Fixed by nwchem
  
    ga_src = fetchFromGitHub {
      owner = "GlobalArrays";
      repo = "ga";
      rev = "v${versionGA}";
      sha256 = "0dgrli9rdxffzl0nd3998fbnlnlibx7ahid2v0nhis1r1i71k1dn";
    };
  
  in stdenv.mkDerivation {
  
negative.code:     src = fetchFromGitHub {
        owner = "nwchemgit";
        repo = "nwchem";
        rev = "${version}-release";
        sha256 = "1z91gnf1iqr2bvcqns5j3c46lyfxhvwv254siksa31wbmw5s68s2";
      };
  
  #hardeningDisable = [ "format" ];
  