anchor.diff:  { stdenv, lib, makeWrapper, requireFile, autoPatchelfHook, writeTextFile, perl, sysstat, zlib,
  -  glibc, gcc-unwrapped, which, less, more, coreutils, useMPI ? false
  +  glibc, gcc-unwrapped, which, less, more, coreutils,
  +  # Configuration
  +  useMPI ? false
   }:
   let
     systemName = if stdenv.isLinux && stdenv.isx86_64
  
positive.code:     export TURBODIR=$out/share/turbomole
      mkdir -p $TURBODIR
      cp -r * $TURBODIR/.
  
      # Find all executables which are entry points.
      exesBin=$(find $TURBODIR/bin/${TURBOMOLE_SYSNAME}_${lib.strings.toLower PARA_ARCH} -type l,f -executable)
  
negative.code:   ];
  
    src = requireFile rec {
      sha256 = "6826d47429bc2a64081f40944e4d48c8f951676e097935ea533a1a25a4e35af0";
      name = "turbolinux${lib.strings.replaceStrings ["."] [""] version}.tar.gz";
      url = "https://www.turbomole.org/";
    };
  
    postPatch = ''
  