#if __POSIX_VISIBLE
#ifndef _REENT_ONLY
FILE *	_EXFUN(fdopen, (int, const char *));
#endif
int	_EXFUN(fileno, (FILE *));
#endif
#if __MISC_VISIBLE || __POSIX_VISIBLE >= 199209
int	_EXFUN(pclose, (FILE *));
FILE *  _EXFUN(popen, (const char *, const char *));
#endif