#elif defined __GNUC__
# if __GNUC__ < 6
# pragma GCC diagnostic ignored "-pedantic"
-# else
-# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
# endif
#endif
+// Fix warnings about using std::auto_ptr on C++11 or newer.
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>