Generated rdoc documentation is incomplete

Hello.
I download ruby to the ruby-build directory from cvs, install it and
want to make a html documentation.
yuray@keeper:/host/p3/b/ruby-build$ ruby --version
ruby 1.9.0 (2005-11-18) [i686-linux]
yuray@keeper:/host/p3/b/ruby-build$ rdoc --all --op /tmp/ruby-doc
...
Generating HTML...

Files: 97
Classes: 313
Modules: 79
Methods: 2751
Elapsed: 73.377s

All is seems OK.
But opening file:///tmp/ruby-doc/index.html in the browser I can not
find documenation about
drb (drb directory is absent in the Files section).

If I run rdoc in the lib/drb, then it is be generated.
yuray@keeper:/host/p3/b/ruby-build/lib/drb$ rdoc

                         extserv.rb: mc....c...
                             acl.rb: cc....c.......
                             drb.rb:
mccc..m.cccc...c.c.....c...c........m.....
drb.rb:793:27: Skipping require of dynamic string: "drb/#{$1}"
c.................mcc.............c.....c....................ccc................
                              eq.rb: mc..
                        extservm.rb: mc.........
                              gw.rb: mc.c...c..
                    invokemethod.rb: mcm..
                        observer.rb: mm.
                             ssl.rb: mcc..............
                     timeridconv.rb: mccc..........
                            unix.rb: mc.........
Generating HTML...

Files: 11
Classes: 36
Modules: 15
Methods: 170
Elapsed: 3.585s

Why rdoc not make the documentation for drb from topdir ruby sources ?
How can I force the rdoc make the ALL documentation ?

Regards,
Yuri Kozlov

Yuri Kozlov wrote:

Why rdoc not make the documentation for drb from topdir ruby sources ?
How can I force the rdoc make the ALL documentation ?

Remove all ".document" files from any directories (e.g. the lib and ext
directories).

Search the list for "rdoc" for more info - this question was answered
recently.

Cheers,
Gavin

Thank you for guidance.