Gem installation failing on documentation.

[ghost]

$ sudo gem install leveldb-ruby
Fetching: leveldb-ruby-0.15.gem (100%)
Building native extensions. This could take a while...
Successfully installed leveldb-ruby-0.15
Parsing documentation for leveldb-ruby-0.15
Before reporting this, could you check that the file you're documenting
has proper syntax:

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -c ext/leveldb/leveldb.cc

RDoc is not a full Ruby parser and will fail when fed invalid ruby programs.

The internal error was:

(RegexpError) Stack overflow in regexp matcher: /.*((?>\/\*.*?\*\/\s+))
                     ([\w\.\s]+\s* = \s+)?rb_define_(class|module).*?"(LevelDB)"/mx

ERROR: While executing gem ... (RegexpError)
Stack overflow in regexp matcher: /.((?>/_.?_/\s+))
([\w.\s]+\s* = \s+)?rb_define_(class|module).*?"(LevelDB)"/mx