fix compiler warnings

src/fileio/fileio.cpp

@@ -21,6 +21,7 @@
 #include "fileio/resmgr/res_strings.hpp"
 #include "fileio/resmgr/res_sound.hpp"
 
+bool mac_is_intel(); // to suppress "no prototype" warning
 bool mac_is_intel(){
 	static bool checked_for_intel = false;
 	static bool _mac_is_intel;

src/game/boe.actions.cpp

@@ -319,7 +319,7 @@ void handle_spellcast(eSkill which_type, bool& did_something, bool& need_redraw,
 }
 
 // Recenter the camera after look is finished or canceled:
-void end_look(bool right_button, bool& need_redraw) {
+static void end_look(bool right_button, bool& need_redraw) {
 	if(overall_mode == MODE_LOOK_COMBAT) {
 		overall_mode = MODE_COMBAT;
 		if(!right_button){

src/game/boe.dlgutil.cpp

@@ -1238,7 +1238,7 @@ static bool prefs_event_filter (cDialog& me, std::string id, eKeyMod) {
 	return true;
 }
 
-static bool reset_help(cDialog& me, std::string id, eKeyMod) {
+static bool reset_help(cDialog& me, std::string, eKeyMod) {
 	if(cChoiceDlog("confirm-reset-help", {"yes", "no"}, &me).show() == "yes")
 		clear_pref("ReceivedHelp");
 	return true;

src/game/boe.main.cpp

@@ -528,12 +528,11 @@ std::map<int, std::string> startup_button_names_v1 = {
 	{2, "Preferences"},
 };
 
-void replay_action(Element& action) {
+static void replay_action(Element& action) {
 	bool did_something = false, need_redraw = false, need_reprint = false;
 
 	std::string _last_action_type = last_action_type;
 	std::string t = action.Value();
-	int enum_v;
 	
 	// NOTE: Action replay blocks need to return early unless the action advances time
 	if(overall_mode == MODE_STARTUP && t == "startup_button_click"){

src/game/boe.text.cpp

@@ -839,7 +839,7 @@ cVehicle* out_horse_there(location where) {
 	return nullptr;
 }
 
-void print_monster_count(std::string m_name, short num){
+static void print_monster_count(std::string m_name, short num){
 	if(num > 0){
 		std::ostringstream sout;
 		sout << "  ";

src/gfx/render_text.cpp

@@ -100,7 +100,6 @@ break_info_t calculate_line_wrapping(rectangle dest_rect, std::string str, TextS
 	unsigned short last_line_break = 0,last_word_break = 0;
 
 	str_to_draw.setString(str);
-	short total_width = str_to_draw.getLocalBounds().width;
 
 	// Even if the text is only one line, break_info is required for calculating word boundaries.
 	// So we can't skip the rest of this.

src/pcedit/pc.action.cpp

@@ -29,6 +29,7 @@ extern rectangle name_rect;
 extern rectangle pc_race_rect;
 extern rectangle edit_rect[5];
 
+bool check_for_interrupt(std::string); // to suppress "missing prototype" warning
 bool check_for_interrupt(std::string) { return false; }
 
 bool handle_action(const sf::Event & event) {

src/scenedit/scen.actions.cpp

@@ -102,6 +102,7 @@ short special_to_paste = -1;
 bool monst_on_space(location loc,short m_num);
 static bool terrain_matches(unsigned char x, unsigned char y, ter_num_t ter);
 
+bool check_for_interrupt(std::string); // to suppress "missing prototype" warning
 bool check_for_interrupt(std::string) { return false; }
 
 void init_screen_locs() {

src/scenedit/scen.main.cpp

@@ -101,7 +101,7 @@ extern std::string last_load_file;
 
 enum class eLaunchType {LOC,START,ENTRANCE};
 
-void launch_scenario(eLaunchType type) {
+static void launch_scenario(eLaunchType type) {
 	if(boost::ends_with(last_load_file, ".exs")){
 		showError("The scenario editor cannot launch an unpacked scenario directly. You'll need to re-open the scenario from its .boes archive.");
 		return;
@@ -807,7 +807,6 @@ static bool prefs_event_filter (cDialog& me, std::string id, eKeyMod) {
 		else if(scale == "3") set_pref("UIScale", 3.0);
 		else if(scale == "4") set_pref("UIScale", 4.0);
 		set_pref("PlaySounds", dynamic_cast<cLed&>(me["nosound"]).getState() == led_off);
-		bool v = dynamic_cast<cLed&>(me["force-default-party"]).getState() == led_red;
 		set_pref("ForceDefaultParty", dynamic_cast<cLed&>(me["force-default-party"]).getState() == led_red);
 		set_pref("DefaultPartyPath", dynamic_cast<cTextField&>(me["party-path"]).getText());
 	}
@@ -881,7 +880,7 @@ void pick_preferences() {
 	});
 
 	cButton& choose_button = dynamic_cast<cButton&>(prefsDlog["choose-party"]);
-	choose_button.attachClickHandler([&default_party_field](cDialog& me, std::string, eKeyMod) -> bool {
+	choose_button.attachClickHandler([&default_party_field](cDialog&, std::string, eKeyMod) -> bool {
 		fs::path new_path = nav_get_party();
 		if(!new_path.empty()){
 			default_party_field.setText(new_path.string());