anchor.diff:  
     ffmpeg_1 = callPackage ../development/libraries/ffmpeg/1.x.nix {
       vpxSupport = !stdenv.isMips;
  -    texinfo = texinfo5;
  -  };
  -
  -  ffmpeg_2 = callPackage ../development/libraries/ffmpeg/2.x.nix {
  -    texinfo = texinfo5;
  -  };
  +  };
  +
  +  ffmpeg_2 = callPackage ../development/libraries/ffmpeg/2.x.nix { };
   
     ffmpeg = ffmpeg_2;
   
  
positive.code: 
      autoComplete = callPackage ../applications/editors/emacs-modes/auto-complete { };
  
      bbdb = callPackage ../applications/editors/emacs-modes/bbdb { texinfo = texinfo5; };
  
      cedet = callPackage ../applications/editors/emacs-modes/cedet { };
  
  
negative.code: 
    texLiveFull = lib.setName "texlive-full" (texLiveAggregationFun {
      paths = [ texLive texLiveExtra lmodern texLiveCMSuper texLiveLatexXColor
                texLivePGF texLiveBeamer texLiveModerncv tipa tex4ht texinfo
                texLiveModerntimeline ];
    });
  
  