CMakeLists: Removed Wno-cpp flag on windows compilation.

Author: luis109

CMakeLists.txt

@@ -189,9 +189,11 @@ message(STATUS "******************************************")
 message(STATUS "***            Compiler Flags          ***")
 message(STATUS "******************************************")
 
-message(STATUS "Adding: -Wno-cpp")
-set(DUNE_CXX_FLAGS "${DUNE_CXX_FLAGS} -Wno-cpp")
-set(DUNE_C_FLAGS "${DUNE_C_FLAGS} -Wno-cpp")
+if(NOT DUNE_OS_WINDOWS)
+  message(STATUS "Adding: -Wno-cpp")
+  set(DUNE_CXX_FLAGS "${DUNE_CXX_FLAGS} -Wno-cpp")
+  set(DUNE_C_FLAGS "${DUNE_C_FLAGS} -Wno-cpp")
+endif(NOT DUNE_OS_WINDOWS)
 
 message(STATUS "DUNE_CXX_FLAGS: ${DUNE_CXX_FLAGS}")
 message(STATUS "DUNE_C_FLAGS: ${DUNE_C_FLAGS}")