anchor.diff:  in rec {
   
     stable = fetchurl rec {
  -    version = "1.8.3";
  +    version = "1.8.4";
       url = "mirror://sourceforge/wine/wine-${version}.tar.bz2";
  -    sha256 = "0v3sq5zzj3z5pw1aicn7i03pgf41cr9fr0vg1sazwfxrmbvwvknp";
  +    sha256 = "0yahh1n3s3y0bp1a1sr3zpna56749jdgr85hwmpq393pjx1i0pai";
   
       ## see http://wiki.winehq.org/Gecko
       gecko32 = fetchurl rec {
  
positive.code: 
    staging = fetchFromGitHub rec {
      inherit (unstable) version;
      sha256 = "0rcy0i36jxv2akczd4sfrdmlsqxmj5v0wzvqb3xl8p2mldk9i8yl";
      owner = "wine-compholio";
      repo = "wine-staging";
      rev = "v${version}";
  
negative.code:   };
  
    unstable = fetchurl rec {
      version = "1.9.18";
      url = "mirror://sourceforge/wine/wine-${version}.tar.bz2";
      sha256 = "1n38697v707j489ljd6b2k1yvrarflc0yn847jas1ida1nm4nq96";
      inherit (stable) mono;
      gecko32 = fetchurl rec {
        version = "2.44";
  