anchor.diff:      owner = "Molcas";
       repo = "OpenMolcas";
       rev = gitLabRev;
  -    sha256 = "0xr9plgb0cfmxxqmd3wrhvl0hv2jqqfqzxwzs1jysq2m9cxl314v";
  +    sha256 = "0cap53gy1wds2qaxbijw09fqhvfxphfkr93nhp9xdq84yxh4wzv6";
     };
   
     patches = [
       # Required to handle openblas multiple outputs
       ./openblasPath.patch
  -];
  +  ];
   
     nativeBuildInputs = [ perl cmake texlive.combined.scheme-minimal makeWrapper ];
     buildInputs = [
  
positive.code: { lib, stdenv, fetchFromGitLab, cmake, gfortran, perl
  , openblas, hdf5-cpp, python3, texlive
  , armadillo, mpi, globalarrays, openssh
  , makeWrapper, fetchpatch
  } :
  
  let
    version = "20.10";
    gitLabRev = "v${version}";
  
    python = python3.withPackages (ps : with ps; [ six pyparsing ]);
  
  
negative.code:     export PATH=$PATH:$out/bin
    '';
  
    postInstall = ''
      mv $out/pymolcas $out/bin
    '';
  
    postFixup = ''
      # Wrong store path in shebang (no Python pkgs), force re-patching
      sed -i "1s:/.*:/usr/bin/env python:" $out/bin/pymolcas
  