string name = get_system_path(fname);  struct stat sbuf; return (stat(name.c_str(), &sbuf) == 0);
to_uppercase(name); exists = (stat(name.c_str(), &sbuf) == 0);
int U7exists	(	const char *fname			// May be converted to upper-case.	)	{	string name = get_system_path(fname);	struct stat sbuf;	return (stat(name.c_str(), &sbuf) == 0);	}