Add GCC 4.6 version restriction for "#pragma GCC diagnostic".
Add GCC 4.6 version restriction for "#pragma GCC diagnostic".

redhatrises/openscap,redhatrises/openscap,redhatrises/openscap,OpenSCAP/openscap,redhatrises/openscap,redhatrises/openscap,redhatrises/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap