[ruby-gnome2-devel-en] gtk2.so: undefined symbol: rb_progname

[Dobai-Pataky B. <dp...@gm...>]

anyone here using gentoo?

i just installed from the ruby overlay dev-lang/ruby-1.9.0.4-r1 and
[ebuild   R   ] dev-ruby/ruby-glib2-0.18.1  0 kB [1]
[ebuild   R   ] dev-ruby/ruby-gdkpixbuf2-0.18.1  0 kB [1]
[ebuild   R   ] dev-ruby/ruby-pango-0.18.1  0 kB [1]
[ebuild   R   ] dev-ruby/ruby-atk-0.18.1  0 kB [1]
[ebuild   R   ] dev-ruby/ruby-gtk2-0.18.1  0 kB [1]
[ebuild   R   ] dev-ruby/ruby-gtksourceview-0.18.1  0 kB [2]


looks like it installed files in the right places, but:
$ irb19
irb(main):001:0> require 'gtk2'
LoadError: /usr/lib/ruby/site_ruby/1.9.0/i686-linux/gtk2.so: undefined
symbol: rb_progname - /usr/lib/ruby/site_ruby/1.9.0/i686-linux/gtk2.so
    from /usr/lib/ruby/site_ruby/1.9.0/gtk2/base.rb:19:in `require'
    from /usr/lib/ruby/site_ruby/1.9.0/gtk2/base.rb:19:in `<top (required)>'
    from /usr/lib/ruby/site_ruby/1.9.0/gtk2.rb:11:in `require'
    from /usr/lib/ruby/site_ruby/1.9.0/gtk2.rb:11:in `<top (required)>'
    from (irb):1:in `require'
    from (irb):1
    from /usr/bin/irb19:12:in `<main>'
irb(main):002:0>

how can i get rid of this and get it to run?

thanks
balint