fix build err

src/yuzu_cmd/emu_window/emu_window_sdl3.cpp

@@ -5,6 +5,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <SDL3/SDL.h>
+#include <SDL3/SDL_timer.h>
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
 #endif
@@ -29,11 +30,12 @@ EmuWindow_SDL3::EmuWindow_SDL3(InputCommon::InputSubsystem* input_subsystem_, Co
         LOG_CRITICAL(Frontend, "Failed to initialize SDL3: {}, Exiting...", SDL_GetError());
         exit(1);
     }
-    titlebar_timer = SDL_AddTimer(2000, [](void *userdata, SDL_TimerID, Uint32) {
+    titlebar_timer = SDL_AddTimer(2000, [](void *userdata, SDL_TimerID, Uint32) -> Uint32 {
         auto* this_ = (EmuWindow_SDL3*)userdata;
         auto const results = this_->system.GetAndResetPerfStats();
         auto const title = fmt::format("{} | {}-{} | FPS: {:.0f} ({:.0f}%)", Common::g_build_fullname, Common::g_scm_branch, Common::g_scm_desc, results.average_game_fps, results.emulation_speed * 100.0f);
         SDL_SetWindowTitle(this_->render_window, title.c_str());
+        return 2000;
     }, this);
 }