dyld: lazy symbol binding failed: Symbol not found: _rb_enc_to_index

[Franco Rondini]

Greetings,
I've a issue very similar to: Ticket #968 - "NATIVE" symbol is not solved within rubygems., but this time the symbol didn't found is: _rb_enc_to_index

my checked out revision is: 5235.

require 'hpricot'
dyld: lazy symbol binding failed: Symbol not found: _rb_enc_to_index
  Referenced from: /Library/Frameworks/MacRuby.framework/Versions/0.9/usr/lib/ruby/Gems/1.9.2/gems/hpricot-0.8.3/lib/fast_xs.bundle
  Expected in: flat namespace

dyld: Symbol not found: _rb_enc_to_index
  Referenced from: /Library/Frameworks/MacRuby.framework/Versions/0.9/usr/lib/ruby/Gems/1.9.2/gems/hpricot-0.8.3/lib/fast_xs.bundle
  Expected in: flat namespace

Thanks, 
Franco