Correct Mix_OpenAudioDevice condition
Use mixer version 2.0.2 for Mix_OpenAudioDevice stub to be able to compile on
Ubuntu 18.04. Previously sdl version was used for check.
In 2.0.2 it is included:
In 2.0.1 it is not included:
Mix_OpenAudioDevice is also mentioned in changelog:
@@ -25,7 +25,7 @@ package mix
// return (frames * 1000) / freq;
//}
//
-//#if !(SDL_VERSION_ATLEAST(2,0,9))
+//#if !(SDL_MIXER_VERSION_ATLEAST(2,0,2))
//
//#if defined(WARN_OUTDATED)
//#pragma message("Mix_OpenAudioDevice is not supported before SDL 2.0.9")
