Ruby 1.8.3 preview 1. AIX 5.2. Bug in do-install-doc during make install

Hello,

Have a bug during installation of Ruby 1.8.3 on AIX 5.2.

-1) configure --enable-install-doc.

-2) make;make test => OK

-3) make install produces the following error in rdoc processing :
                             ...
                             zlib.c: mcccccccccccccccccc..................
Generating RI...
/usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/baseemitter.rb:135:in `gsub':
Stack overflow in regexp matcher: /(^[ \t]+.*$)|(\S.{0,79})(?:[
\t]+|(\n+(?=[ \t]|\Z))|$)/ (RegexpError)
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/baseemitter.rb:135:in
`fold'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/baseemitter.rb:67:in
`node_text'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/rubytypes.rb:329:in
`to_yaml'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/rubytypes.rb:307:in
`call'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml.rb:373:in
`quick_emit'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/rubytypes.rb:307:in
`to_yaml'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/baseemitter.rb:181:in
`map'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/yaml/baseemitter.rb:170:in
`each'
         ... 15 levels...
        from
/usr11/home/phil/RUBY/ruby-1.8.3/lib/rdoc/generators/ri_generator.rb:84:in
`each'
        from
/usr11/home/phil/RUBY/ruby-1.8.3/lib/rdoc/generators/ri_generator.rb:84:in
`generate'
        from /usr11/home/phil/RUBY/ruby-1.8.3/lib/rdoc/rdoc.rb:263:in
`document'
        from ../bin/rdoc:63
make: *** [do-install-doc] Error 1

Philippe Lucas