anchor.diff:      bmp_plugin_musepack
       bsdiff
       bzip2
  +    chatzilla
       cksfv
       coreutils
       darcs
  
positive.code:     mktemp
      mono
      mysql
  #    nix
      nxml
  #    octave
      openssl
  
negative.code:     tetex
      texinfo
      thunderbird
      tightvnc
      transformers
      uml
      unzip
  