anchor.diff:    autoconf = all;
     avahi = allBut "i686-cygwin";  # Cygwin builds fail
     bash = all;
  -  bazaar = all;
  -  bitlbee = linux;
  +  bazaar = linux; # first let sqlite3 work on darwin
  +  bitlbee = linux; 
     boost = all;
     cdrkit = linux;
  -  cedet = all;
  +  cedet = linux;
     emacs22 = all;
     emacsUnicode = all;
     emms = linux;
  
positive.code:   };
  
    kernelPackages_2_6_27 = {
      aufs = linux;
      kernel = linux;
    };
    
  
negative.code:   firefox3 = linux;
    gcc = all;
    gdb = all;
    ghostscript = linux;
    ghostscriptX = linux;
    git = linux;
    gnuplot = allBut "i686-cygwin";
    gnuplotX = linux;
    gnutls = linux;
    graphviz = all;
    guile = linux;  # tests fail on Cygwin
    guileLib = linux;
    hello = all;
    icecat3Xul = [ "i686-linux" ];
    idutils = all;
    imagemagick = allBut "i686-cygwin";
    inetutils = linux;
    inkscape = linux;
    jnettop = linux;
  