anchor.diff:        fontforge help2man groff makeWrapper
       ];
   
  -  meta = { 
  +  meta = {
       description = "Music typesetting system";
       homepage = http://lilypond.org/;
       license = "GPL";
  
positive.code: { stdenv, fetchurl, ghostscript, texinfo, imagemagick, texi2html, guile
  , python, gettext, flex, perl, bison, pkgconfig, texLive, dblatex
  , fontconfig, freetype, pango, fontforge, help2man, zip, netpbm, groff 
  , fetchsvn, makeWrapper }:
  
  stdenv.mkDerivation rec{
  
negative.code:   '';
  
    postInstall = ''
      for f in "$out/bin/"*; do
          wrapProgram "$f" --set GUILE_AUTO_COMPILE 0 \
                           --set PATH "${ghostscript}/bin"
      done
  