Fix compiling on Win32

src/core/keymapper.cpp

@@ -740,6 +740,7 @@ namespace
 		std::string command;
 
 		keybind_data() : information_dispatch("keybind-listener") {}
+		~keybind_data() throw() {}
 
 		void on_key_event(const modifier_set& modifiers, keygroup& keygroup, unsigned _subkey, bool polarity,
 			const std::string& name)

src/platform/sdl/graphicsfn.cpp

@@ -177,6 +177,7 @@ namespace
 	{
 	public:
 		keygrabber() : information_dispatch("sdl-key-grabber") { idmode = false; }
+		~keygrabber() throw() {}
 		void enter_id_mode()
 		{
 			keys = "";