--- /dev/null
+#ifndef MIXER_INTERNAL_H
+#define MIXER_INTERNAL_H
+
+#include <SDL_mixer.h>
+
+/* test mixer initializations */
+#define MIXER_INIT_CHECK() \
+ if(!SDL_WasInit(SDL_INIT_AUDIO)) \
+ return RAISE(pgExc_SDLError, "mixer not initialized")
+
+#define PYGAMEAPI_MIXER_NUMSLOTS 7
+#include "include/pygame_mixer.h"
+
+#endif /* ~MIXER_INTERNAL_H */