anchor.diff:  
       patchPhase = ''
         chmod +x libpepflashplayer.so
  -      patchelf --set-rpath "${mkrpath [ stdenv.cc.cc ]}" libpepflashplayer.so
  +      patchelf --set-rpath "${mkrpath [ gcc.cc ]}" libpepflashplayer.so
       '';
   
       doCheck = true;
  
positive.code: { stdenv
  , jshon
  , glib
  , nspr
  
negative.code:       ! find -iname '*.so' -exec ldd {} + | grep 'not found'
      '';
  
      PATCH_RPATH = mkrpath [ gcc.cc glib nspr nss ];
  
      patchPhase = ''
        chmod +x libwidevinecdm.so libwidevinecdmadapter.so
  