Other UNIX system interfaces, deprecated or not in POSIX.1-2001:

    cuserid			(POSIX.1-1988, SUSv2)
    endutent			(XPG2)
    getpass			(SUSv2)
    getutent			(XPG2)
    getutid			(XPG2)
    getutline			(XPG2)
    getw			(SVID)
    mallinfo			(SVID)
    mallopt			(SVID)
    on_exit			(SunOS)
    pthread_continue		(XPG2)
    pthread_getsequence_np	(Tru64)
    pthread_suspend		(XPG2)
    pututline			(XPG2)
    putw			(SVID)
    setutent			(XPG2)
    sys_errlist			(BSD)
    sys_nerr			(BSD)
    ttyslot			(SUSv2)
    utmpname			(XPG2)