took care of warnings from newer GCCs

Signed-off-by: Christian Kroll <chris@das-labor.org>

scripts/lxdialog/Makefile

@@ -32,7 +32,7 @@ lxdialog: $(OBJS)
 	$(HOSTCC) $(HOSTCFLAGS) -o lxdialog $(OBJS) $(LIBS)
 
 ncurses:
-	@echo "main() {}" > lxtemp.c
+	@echo "int main() {return 0;}" > lxtemp.c
 	@if $(HOSTCC) $(HOSTCFLAGS) -lncurses lxtemp.c ; then \
 		rm -f lxtemp.c a.out; \
 	else \

scripts/lxdialog/lxdialog.c

@@ -208,7 +208,7 @@ j_inputbox (const char *t, int ac, const char * const * av)
     int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),
                             ac == 6 ? av[5] : (char *) NULL);
     if (ret == 0)
-        fprintf(stderr, dialog_input_result);
+        fputs(dialog_input_result, stderr);
     return ret;
 }
 

src/games/kart/kart.c

@@ -23,7 +23,7 @@
 
 
 #if defined MENU_SUPPORT && defined GAME_KART
-// icon (TODO: convert to hex)
+// icon
 static const uint8_t icon[8] PROGMEM =
 	{	0xE1, 	// 0b11100001,
 		0xE1,	// 0b11100001,
@@ -230,7 +230,8 @@ void kart_game(){
 		wait(WAIT);
 	}
 
-	snprintf(game_over, sizeof(game_over), "</#Game Over, Score: %lu",  cycle);
+	snprintf(game_over, sizeof(game_over), "</#Game Over, Score: %lu",
+			(long unsigned)cycle);
 	scrolltext(game_over);
 }
 

src/scrolltext/scrolltext3.c

@@ -34,12 +34,17 @@
 
 #define MAX_FONTS 1
 font fonts[MAX_FONTS];
+
+// never used
+/*
 #define MAX_SPECIALCOLORS 3
 
-static const unsigned char PROGMEM colorTable[MAX_SPECIALCOLORS * NUM_ROWS] = {1, 1, 2, 3, 3, 2, 1, 1,
+static const unsigned char PROGMEM colorTable[MAX_SPECIALCOLORS * NUM_ROWS] ={
+	1, 1, 2, 3, 3, 2, 1, 1,
 	3, 3, 2, 1, 1, 2, 3, 3,
 	3, 3, 2, 2, 3, 3, 2, 2
 };
+*/
 
 static const char default_text[] PROGMEM = SCROLLTEXT_TEXT;
 char scrolltext_text[SCROLLTEXT_BUFFER_SIZE];