anchor.diff:  
     stockfish = callPackage ../games/stockfish { };
   
  -  steamPackages = callPackage ../games/steam { };
  +  steamPackages = dontRecurseIntoAttrs (callPackage ../games/steam { });
   
     steam = steamPackages.steam-chrootenv;
   
  
positive.code: 
    source-han-code-jp = callPackage ../data/fonts/source-han-code-jp { };
  
    sourceHanSansPackages = callPackage ../data/fonts/source-han-sans { };
    source-han-sans-japanese = sourceHanSansPackages.japanese;
    source-han-sans-korean = sourceHanSansPackages.korean;
    source-han-sans-simplified-chinese = sourceHanSansPackages.simplified-chinese;
    source-han-sans-traditional-chinese = sourceHanSansPackages.traditional-chinese;
    sourceHanSerifPackages = callPackage ../data/fonts/source-han-serif { };
    source-han-serif-japanese = sourceHanSerifPackages.japanese;
    source-han-serif-korean = sourceHanSerifPackages.korean;
    source-han-serif-simplified-chinese = sourceHanSerifPackages.simplified-chinese;
  
negative.code: 
    emscripten = callPackage ../development/compilers/emscripten { };
  
    emscriptenfastcompPackages = dontRecurseIntoAttrs (callPackage ../development/compilers/emscripten/fastcomp { });
  
    emscriptenfastcomp = emscriptenfastcompPackages.emscriptenfastcomp;
  
  