anchor.diff:    pan = linux;
     perl = all;
     pltScheme = linux;
  +  portmap = linux;
     postgresql = all;
     python = all;
     ruby = all;
  
positive.code: 
    MPlayer = linux;
    apacheHttpd = linux;
    autoconf = all;
    avahi = allBut "i686-cygwin";  # Cygwin builds fail
    bash = all;
  
negative.code:   vlc = linux;
    webkit = all;
    wine = ["i686-linux"];
    zile = linux;
  
    gtkLibs = {
      gtk = linux;
  