WRG: Silent Shark warnings

Modules/Learning/Supervised/include/otbSharkRandomForestsMachineLearningModel.h

@@ -33,6 +33,8 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #pragma GCC diagnostic ignored "-Wcast-align"
 #pragma GCC diagnostic ignored "-Wunknown-pragmas"
+#pragma GCC diagnostic ignored "-Wheader-guard"
+#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
 #endif
 #include <shark/Models/Classifier.h>
 #include "otb_shark.h"