Fix compiler warnings

src/gui/dialogs/lobby/lobby.cpp

@@ -147,7 +147,6 @@ tlobby_main::tlobby_main(const config& game_config,
 	, window_(nullptr)
 	, lobby_info_(info)
 	, preferences_callback_()
-	, active_window_(0)
 	, filter_friends_(nullptr)
 	, filter_ignored_(nullptr)
 	, filter_slots_(nullptr)

src/gui/dialogs/lobby/lobby.hpp

@@ -198,8 +198,6 @@ private:
 
 	std::function<void()> preferences_callback_;
 
-	size_t active_window_;
-
 	ttoggle_button* filter_friends_;
 
 	ttoggle_button* filter_ignored_;

src/hotkey/hotkey_handler.cpp

@@ -531,5 +531,5 @@ hotkey::ACTION_STATE play_controller::hotkey_handler::get_action_state(hotkey::H
 
 void play_controller::hotkey_handler::load_autosave(const std::string& filename)
 {
-	throw savegame::load_game_exception({ filename });
+	throw savegame::load_game_exception(filename);
 }

src/savegame.hpp

@@ -59,6 +59,15 @@ struct load_game_metadata {
 
 	/** Config information of the savefile to be loaded. */
 	config load_config;
+
+	explicit load_game_metadata(const std::string& fname = "", const std::string& hard = "",
+			bool replay = false, bool stop = false, bool change = false,
+			const config& summary = config(), const config& info = config())
+		: filename(fname), difficulty(hard)
+		, show_replay(replay), cancel_orders(stop), select_difficulty(change)
+		, summary(summary), load_config(info)
+	{
+	}
 };
 
 /**
@@ -69,8 +78,9 @@ class load_game_exception
 	: public tlua_jailbreak_exception, public std::exception
 {
 public:
-	load_game_exception()
+	load_game_exception(const std::string& fname)
 		: tlua_jailbreak_exception()
+		, data_(fname)
 	{
 	}