py3: fox compiler warnings

issue 0000995

src/Base/swigpyrun.cpp

@@ -28,6 +28,9 @@
 #if defined(__clang__)
 # pragma clang diagnostic push
 # pragma clang diagnostic ignored "-Wdeprecated-register"
+#elif defined (__GNUC__)
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wmissing-field-initializers"
 #endif
 namespace Swig_python {
 #define SWIG_PYTHON_NO_BUILD_NONE
@@ -36,6 +39,8 @@ namespace Swig_python {
 }
 #if defined(__clang__)
 # pragma clang diagnostic pop
+#elif defined (__GNUC__)
+# pragma GCC diagnostic pop
 #endif
 #endif // HAVE_SWIG