_get_osfhandle             (Windows)
    _setmode                   (Windows)
    cwait                      (Windows)
    cygwin_attach_handle_to_fd
    cygwin_conv_path
    cygwin_conv_path_list
    cygwin_create_path
    cygwin_detach_dll
    cygwin_dll_init
    cygwin_internal
    cygwin_logon_user
    cygwin_posix_path_list_p
    cygwin_set_impersonation_token
    cygwin_split_path
    cygwin_stackdump
    cygwin_umount
    cygwin_winpid_to_pid
    spawnl                     (Windows)
    spawnle                    (Windows)
    spawnlp                    (Windows)
    spawnlpe                   (Windows)
    spawnv                     (Windows)
    spawnve                    (Windows)
    spawnvp                    (Windows)
    spawnvpe                   (Windows)