anchor.diff:    guile = linux;  # tests fail on Cygwin
     guileLib = linux;
     gv = linux;
  +  gw6c = linux;
     gzip = all;
     hal = linux;
     hello = all;
     host = linux;
  +  httpd = linux;
     hugin = linux;
     iana_etc = linux;
     icecat3Xul = [ "i686-linux" ];
  
positive.code:   docbook_xml_dtd_43 = all;
    docbook_xsl = all;
    dosbox = linux;
    doxygen = linux;
    e2fsprogs = linux;
    ejabberd = linux;
  
negative.code:   rubber = allBut "i686-cygwin";
    ruby = all;
    rxvt_unicode = all;
    samba = linux;
    screen = linux ++ darwin;
    seccure = linux;
    seccureUser = linux;
  