add option to quell dune(-istl) warnings

cmake/Modules/UseWarnings.cmake

@@ -12,3 +12,17 @@ if (CXX_COMPAT_GCC)
 	add_options (ALL_LANGUAGES ALL_BUILDS "${_warn_flag}")
   endif (_warn_flag)
 endif ()
+
+option(SILENCE_DUNE_WARNINGS "Disable warnings from DUNE?" OFF)
+if(SILENCE_DUNE_WARNINGS AND CXX_COMPAT_GCC)
+  file(WRITE ${CMAKE_BINARY_DIR}/dune_disable_pragmas.h "
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored \"-Wshadow\"
+#pragma GCC diagnostic ignored \"-Wunused-parameter\"
+#pragma GCC diagnostic ignored \"-Wignored-qualifiers\"
+#pragma GCC diagnostic ignored \"-Wmismatched-tags\"")
+  file(WRITE ${CMAKE_BINARY_DIR}/dune_reenable_pragmas.h "#pragma GCC diagnostic pop")
+else()
+    file(WRITE ${CMAKE_BINARY_DIR}/dune_disable_pragmas.h "")
+    file(WRITE ${CMAKE_BINARY_DIR}/dune_reenable_pragmas.h "")
+endif()

opm/core/linalg/LinearSolverIstl.cpp

@@ -28,6 +28,8 @@
 // the deprecated member anyway (in this compilation unit)
 #define DUNE_COMMON_FIELDVECTOR_SIZE_IS_METHOD 1
 
+#include "dune_disable_pragmas.h"
+
 // TODO: clean up includes.
 #include <dune/common/deprecated.hh>
 #include <dune/istl/bvector.hh>
@@ -39,6 +41,8 @@
 #include <dune/istl/paamg/amg.hh>
 #include <dune/istl/paamg/kamg.hh>
 
+#include "dune_reenable_pragmas.h"
+
 #include <stdexcept>
 #include <iostream>