bcmp			(POSIX.1-2001, SUSv3)
    bcopy			(SUSv3)
    bzero			(SUSv3)
    chroot			(SUSv2)		(see the section called “Implementation Notes”)
    clock_setres		(QNX, VxWorks)	(see the section called “Implementation Notes”)
    cuserid			(POSIX.1-1988, SUSv2)
    ecvt			(SUSv3)
    endutent			(XPG2)
    fcvt			(SUSv3)
    ftime			(SUSv3)
    gcvt			(SUSv3)
    getcontext			(SUSv3)
    gethostbyaddr		(SUSv3)
    gethostbyname		(SUSv3)
    gethostbyname2		(first defined in BIND 4.9.4)
    getpass			(SUSv2)
    getutent			(XPG2)
    getutid			(XPG2)
    getutline			(XPG2)
    getw			(SVID)
    getwd			(SUSv3)
    h_errno			(SUSv3)
    index			(SUSv3)
    makecontext			(SUSv3)
    mallinfo			(SVID)
    mallopt			(SVID)
    mktemp			(SUSv3)
    on_exit			(SunOS)
    pthread_attr_getstackaddr	(SUSv3)
    pthread_attr_setstackaddr	(SUSv3)
    pthread_continue		(XPG2)
    pthread_getsequence_np	(Tru64)
    pthread_suspend		(XPG2)
    pthread_yield		(POSIX.1c drafts)
    pututline			(XPG2)
    putw			(SVID)
    rindex			(SUSv3)
    scalb			(SUSv3)
    setcontext			(SUSv3)
    setutent			(XPG2)
    stime			(SVID)
    swapcontext			(SUSv3)
    sys_errlist			(BSD)
    sys_nerr			(BSD)
    sys_siglist			(BSD)
    toascii			(SUSv3)
    ttyslot			(SUSv2)
    ualarm			(SUSv3)
    usleep			(SUSv3)
    utmpname			(XPG2)
    vfork			(SUSv3)		(see the section called “Implementation Notes”)