anchor.diff:  
     keybinder3 = callPackage ../development/libraries/keybinder3 {
       automake = automake111x;
  -    lua = lua5_1;
     };
   
     krb5 = callPackage ../development/libraries/kerberos/krb5.nix { };
  
positive.code: 
    aegisub = callPackage ../applications/video/aegisub {
      wxGTK = wxGTK30;
      lua = lua5_1;
    };
  
    aespipe = callPackage ../tools/security/aespipe { };
  
negative.code:   avxsynth = callPackage ../applications/video/avxsynth { };
  
    awesome-3-4 = callPackage ../applications/window-managers/awesome/3.4.nix {
      cairo = cairo.override { xcbSupport = true; };
    };
    awesome-3-5 = callPackage ../applications/window-managers/awesome {
      cairo = cairo.override { xcbSupport = true; };
    };
    awesome = awesome-3-5;
  