Py3: suppress warning: 'tp_print' is deprecated [-Wdeprecated-declarations]

If the tp_print slot is not set the warning -Wmissing-field-initializers is raised. If it's set then -Wdeprecated-declarations is raised.
So, the only way is to suppress it.

src/Tools/generateTemplates/templateClassPyExport.py

@@ -279,6 +279,11 @@ public:
 #include <Base/Exception.h>
 #include <CXX/Objects.hxx>
 
+#if defined(__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
 using Base::streq;
 using namespace @self.export.Namespace@;
 
@@ -892,6 +897,10 @@ int @self.export.Name@::_setattr(const char *attr, PyObject *value) // __setattr
     return static_cast<@self.export.TwinPointer@ *>(_pcTwinPointer);
 }
 
+#if defined(__clang__)
+# pragma clang diagnostic pop
+#endif
+
 #if 0
 /* From here on come the methods you have to implement, but NOT in this module. Implement in @self.export.Name@Imp.cpp! This prototypes 
  * are just for convenience when you add a new method.