anchor.diff: -{ bash
  -, coreutils
  +{ coreutils
   , fetchurl
   , gnugrep
   , lib
  
positive.code:   '';
  
    postInstall = ''
      wrapProgram $out/bin/zstxtns-merge --prefix PATH ":" "${lib.makeBinPath [coreutils gnugrep moreutils]}"
      wrapProgram $out/bin/zstxtns-unmerge --prefix PATH ":" "${lib.makeBinPath [coreutils gnugrep]}"
    '';
  
    meta = with lib; {
  
negative.code:   };
  
    nativeBuildInputs = [ makeWrapper ];
  
    installPhase = ''
      runHook preInstall
  