WRG: take out warnings from gdal

Modules/IO/TestKernel/src/otbTestDriver.cxx

@@ -31,7 +31,7 @@
 
 // include SharedForward to avoid duplicating the code which find the library path variable
 // name and the path separator
-#ifdef __GNUC__
+#if defined(__GNUC__) || defined(__clang__)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-function"
 #include "itksys/SharedForward.h"

Modules/IO/TestKernel/src/otbTestHelper.cxx

@@ -27,7 +27,14 @@
 #include <algorithm>
 #include <string>
 
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wshadow"
 #include "ogrsf_frmts.h"
+#pragma GCC diagnostic pop
+#else
+#include "ogrsf_frmts.h"
+#endif
 
 #include "itksys/SystemTools.hxx"
 #include "itksys/Directory.hxx"