anchor.diff:  
     buildInputs =
       let docs =
  -      if buildDocs then [ pandoc texlive] else [];
  +      if buildDocs then [ pandoc ] else [];
       in
  -    [ ocaml gcc R texlive makeWrapper ] ++ docs;
  +    [ ocaml gcc R myTexlive makeWrapper ] ++ docs;
   
     buildPhase =
       let docs = 
  
positive.code: { pkgs   ? import <nixpkgs> {},
    stdenv ? pkgs.stdenv,
    pbenchSrc ? ../.,
    ocaml ? pkgs.ocaml,
    gcc ? pkgs.gcc,
    R ? pkgs.R,
    texlive ? pkgs.texlive.combined.scheme-small,
    pandoc ? pkgs.pandoc,
    makeWrapper ? pkgs.makeWrapper,
    buildDocs ? false
  }:
  
negative.code:     mkdir -p $out/bin/
      cp prun pplot prun.pbench pplot.pbench timeout.out $out/bin/
      wrapProgram $out/bin/pplot \
        --prefix PATH ":" ${myTexlive}/bin \
        --prefix PATH ":" ${R}/bin
      mkdir -p $out/lib/
      cp lib/*.ml $out/lib/
  