anchor.diff:    opensaml-cpp = callPackage ../development/libraries/opensaml-cpp { };
   
     openscenegraph = callPackage ../development/libraries/openscenegraph { };
  +  openscenegraph_3_4 = callPackage ../development/libraries/openscenegraph/3.4.0.nix { };
   
     openslp = callPackage ../development/libraries/openslp {};
   
  
positive.code:     avrlibc = pkgsCross.avr.libcCross;
    };
  
    simgear = callPackage ../development/libraries/simgear { };
  
    simp_le = callPackage ../tools/admin/simp_le { };
  
  
negative.code: 
    fish-fillets-ng = callPackage ../games/fish-fillets-ng {};
  
    flightgear = libsForQt5.callPackage ../games/flightgear { openscenegraph = openscenegraph_3_4; };
  
    flock = callPackage ../development/tools/flock { };
  
  