option nodynamic
#Win32API
bigdecimal
cgi/escape
dbm
digest
digest/md5
digest/rmd160
digest/sha1
digest/sha2
enumerator
etc
fcntl
gdbm
io/wait
nkf
#openssl
pty
racc/parse
readline
ripper
socket
stringio
strscan
syslog
#win32ole
zlib