In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a document associated with the app, the document(s) are passed to SDL_main() as if they were command line arguments. Otherwise, the command line is always empty and there is no way for the app to recover this information.

#ifndef _SDL_SYSMUTEX_C_H_
#define _SDL_SYSMUTEX_C_H_

struct SDL_mutex {
	pth_mutex_t mutexpth_p;
};

#endif /* _SDL_SYSMUTEX_C_H_ */