V7.0_and_Higher

   The following additional functions are available on OpenVMS VAX
   and OpenVMS Alpha Version 7.0 and higher:

      basename     bcmp         bcopy        btowc
      bzero        closedir     confstr      dirname
      drand48      erand48      ffs          fpathconf
      ftruncate    ftw          fwide        fwprintf
      fwscanf      getclock     getdtablesizegetitimer
      getlogin     getpagesize  getpwnam     getpwuid
      gettimeofday index        initstate    jrand48
      lcong48      lrand48      mbrlen       mbrtowc
      mbsinit      mbsrtowcs    memccpy      mkstemp
      mmap         mprotect     mrand48      msync
      munmap       nrand48      opendir      pathconf
      pclose       popen        putenv       random
      readdir      rewinddir    rindex       rmdir
      seed48       seekdir      setenv       setitimer
      setstate     sigaction    sigaddset    sigdelset
      sigemptyset  sigfillset   sigismember  siglongjmp
      sigpending   sigprocmask  sigsetjmp    sigsuspend
      srand48      srandom      strcasecmp   strdup
      strfmon      strncasecmp  strsep       swab
      swprintf     swscanf      sysconf      telldir
      tempnam      towctrans    truncate     tzset
      ualarm       uname        unlink       unsetenv
      usleep       vfwprintf    vswprintf    vwprintf
      wait3        wait4        waitpid      wcrtomb
      wcsrtombs    wcsstr       wctob        wctrans
      wmemchr      wmemcmp      wmemcpy      wmemmove
      wmemset      wprintf      wscanf