Fix warnings.

src/conio/sdl_con.c

@@ -258,8 +258,8 @@ static int sdl_user_func_ret(int func, ...)
 	while(1) {
 		switch(func) {
 			case SDL_USEREVENT_SETVIDMODE:
-				ev.user.data1 = (void *)va_arg(argptr, int);
-				ev.user.data2 = (void *)va_arg(argptr, int);
+				ev.user.data1 = (void *)(intptr_t)va_arg(argptr, int);
+				ev.user.data2 = (void *)(intptr_t)va_arg(argptr, int);
 				while(sdl.PeepEvents(&ev, 1, SDL_ADDEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)!=1)
 					YIELD();
 				break;

src/conio/x_events.c

@@ -581,8 +581,8 @@ static int init_window()
 
 	classhints=x11.XAllocClassHint();
 	if (classhints) {
-		classhints->res_name = ciolib_initial_program_name;
-		classhints->res_class = ciolib_initial_program_class;
+		classhints->res_name = (char *)ciolib_initial_program_name;
+		classhints->res_class = (char *)ciolib_initial_program_class;
 	}
 	wmhints=x11.XAllocWMHints();
 	wmhints->flags = 0;