Check for more warnings

CMakeLists.txt

@@ -594,7 +594,7 @@ endif()
 
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL GNU OR CMAKE_CXX_COMPILER_ID STREQUAL Clang)
-    set(OPENMW_CXX_FLAGS "-Wall -Wextra -Wundef -Wextra-semi -Wno-unused-parameter -pedantic -Wno-long-long -Wnon-virtual-dtor ${OPENMW_CXX_FLAGS}")
+    set(OPENMW_CXX_FLAGS "-Wall -Wextra -Wundef -Wextra-semi -Wno-unused-parameter -pedantic -Wno-long-long -Wnon-virtual-dtor -Wunused ${OPENMW_CXX_FLAGS}")
     add_definitions( -DBOOST_NO_CXX11_SCOPED_ENUMS=ON )
 
     if (APPLE)
@@ -609,7 +609,7 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL GNU OR CMAKE_CXX_COMPILER_ID STREQUAL Clang)
     endif()
 
     if (CMAKE_CXX_COMPILER_ID STREQUAL GNU)
-        set(OPENMW_CXX_FLAGS "${OPENMW_CXX_FLAGS} -Wno-unused-but-set-parameter -Wduplicated-branches")
+        set(OPENMW_CXX_FLAGS "${OPENMW_CXX_FLAGS} -Wno-unused-but-set-parameter -Wduplicated-branches -Wduplicated-cond -Wlogical-op")
     endif()
 endif (CMAKE_CXX_COMPILER_ID STREQUAL GNU OR CMAKE_CXX_COMPILER_ID STREQUAL Clang)