*-unix, *-dos, *-mac coding-system not exist for koi8

[Tatumi Masahito]

This bug report will be sent to the Free Software Foundation,
 not to your local site managers!!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

In GNU Emacs 20.7.2 (i386-debian-linux-gnu, X toolkit)
 of Tue Apr  9 2002 on lilac modified by Debian
configured using `configure  --prefix=/usr --with-gcc --libexecdir=/usr/lib 
--mandir=/usr/share/man --infodir=/usr/share/info --sharedstatedir=/var/lib 
--localstatedir=/var/lib --with-pop=yes --with-x=yes --with-x-toolkit=yes 
--with-xim=yes --enable-ipv6 i386-debian-linux-gnu'

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Can't select EOL type with KOI8-R coding, because *-unix, *-dos, and
*-mac coding-system don't exist for cyrillic-koi8, koi8, and koi8-r.


Recent input:
down-mouse-5 mouse-5 double-down-mouse-5 double-mouse-5 
down-mouse-4 mouse-4 double-down-mouse-4 double-mouse-4 
down-mouse-5 mouse-5 down-mouse-5 mouse-5 double-down-mouse-5 
double-mouse-5 triple-down-mouse-5 triple-mouse-5 triple-down-mouse-5 
triple-mouse-5 down-mouse-4 mouse-4 down-mouse-4 mouse-4 
double-down-mouse-4 double-mouse-4 triple-down-mouse-4 
triple-mouse-4 triple-down-mouse-4 triple-mouse-4 down-mouse-4 
mouse-4 double-down-mouse-4 double-mouse-4 down-mouse-5 
mouse-5 double-down-mouse-5 double-mouse-5 triple-down-mouse-5 
triple-mouse-5 down-mouse-4 mouse-4 double-down-mouse-4 
double-mouse-4 triple-down-mouse-4 triple-mouse-4 C-x 
k return C-x 1 C-h C k o i 8 tab - tab tab tab tab 
tab return tab tab tab tab tab tab tab tab tab tab 
tab C-x 1 C-h C c y r i tab k o i tab tab tab tab tab 
tab tab tab return C-x 1 menu-bar help-menu report
-emacs-bug

Recent messages:
Quit [2 times]
Auto-saving...
Auto-saving...done
Wrote /home/jiangmin/Mail/draft/3
Draft was killed
Loading emacsbug...
Loading emacsbug...done
Auto-saving...
Auto-saving...done
End of buffer