anchor.diff:    postgresql = all;
     python = all;
     pythonFull = linux;
  +  rubber = all;
     ruby = all;
     qt3 = all;
     qt4 = all;
  
positive.code:   strace = linux;
    subversion = linux;
    tcpdump = linux;
    thunderbird = linux;
    vimHugeX = all;
    vlc = linux;
  
negative.code:   kernel_2_6_28 = linux;
    libsmbios = linux;
    libtool = all;
    lout = linux;
    lsh = linux;
    manpages = all;
    maxima = all;
  