Merge pull request ddnet#9609 from Robyt3/Client-SDL-Hint-Cleanup

Consistently use SDL hint constants from `SDL_hints.h`

Author: def-

src/engine/client/client.cpp

@@ -4901,32 +4901,34 @@ int main(int argc, const char **argv)
 #endif
 
 	// Do not automatically translate touch events to mouse events and vice versa.
-	SDL_SetHint("SDL_TOUCH_MOUSE_EVENTS", "0");
-	SDL_SetHint("SDL_MOUSE_TOUCH_EVENTS", "0");
+	SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");
+	SDL_SetHint(SDL_HINT_MOUSE_TOUCH_EVENTS, "0");
 
 	// Support longer IME composition strings (enables SDL_TEXTEDITING_EXT).
 #if SDL_VERSION_ATLEAST(2, 0, 22)
 	SDL_SetHint(SDL_HINT_IME_SUPPORT_EXTENDED_TEXT, "1");
 #endif
 
-#if defined(CONF_PLATFORM_MACOS)
+#if defined(CONF_PLATFORM_MACOS) && SDL_VERSION_ATLEAST(2, 24, 0)
 	// Hints will not be set if there is an existing override hint or environment variable that takes precedence.
 	// So this respects cli environment overrides.
-	SDL_SetHint("SDL_MAC_OPENGL_ASYNC_DISPATCH", "1");
+	SDL_SetHint(SDL_HINT_MAC_OPENGL_ASYNC_DISPATCH, "1");
 #endif
 
+#if SDL_VERSION_ATLEAST(2, 0, 18)
 #if defined(CONF_FAMILY_WINDOWS)
-	SDL_SetHint("SDL_IME_SHOW_UI", g_Config.m_InpImeNativeUi ? "1" : "0");
+	SDL_SetHint(SDL_HINT_IME_SHOW_UI, g_Config.m_InpImeNativeUi ? "1" : "0");
 #else
-	SDL_SetHint("SDL_IME_SHOW_UI", "1");
+	SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
+#endif
 #endif
 
 #if defined(CONF_PLATFORM_ANDROID)
 	// Trap the Android back button so it can be handled in our code reliably
 	// instead of letting the system handle it.
-	SDL_SetHint("SDL_ANDROID_TRAP_BACK_BUTTON", "1");
+	SDL_SetHint(SDL_HINT_ANDROID_TRAP_BACK_BUTTON, "1");
 	// Force landscape screen orientation.
-	SDL_SetHint("SDL_IOS_ORIENTATIONS", "LandscapeLeft LandscapeRight");
+	SDL_SetHint(SDL_HINT_ORIENTATIONS, "LandscapeLeft LandscapeRight");
 #endif
 
 	// init SDL