anchor.diff:        kvm
         less
         lftp
  -      lhs2tex
         libtool
         libxml2
         libxslt
  
positive.code:       w3m
        wget
        wirelesstools
        wxHaskell
        x11_ssh_askpass
        xchm
        xfig
  
negative.code:       gcc34
        gcc43
        gdb
        ghostscript
        gimp
        git
  