rbx symbol lookup error

config.rb

module Rubinius
  BUILD_CONFIG = {
    :which_ruby     => :ruby,
    :build_ruby     => "/home/hudson/.rvm/rubies/ruby-1.8.7-p334/bin/ruby",
    :build_rake     => "rake",
    :build_perl     => "perl",
    :llvm           => :prebuilt,
    :llvm_configure => "",
    :cc             => "gcc",
    :cxx            => "g++",
    :user_cflags    => "",
    :user_cppflags  => "",
    :user_ldflags   => "",
    :defines        => ["HAS_EXECINFO", "HAS_READLINE"],
    :curses         => "curses",
    :host           => "i686-pc-linux-gnu",
    :cpu            => "i686",
    :vendor         => "pc",
    :os             => "linux-gnu",
    :little_endian  => true,
    :sizeof_long    => 4,
    :x86_32         => true,
    :bindir         => "/home/hudson/.rvm/rubies/rbx-head/bin",
    :libdir         => "/home/hudson/.rvm/rubies/rbx-head",
    :runtime        => "/home/hudson/.rvm/rubies/rbx-head/runtime",
    :kernel_path    => "/home/hudson/.rvm/rubies/rbx-head/kernel",
    :lib_path       => "/home/hudson/.rvm/rubies/rbx-head/lib",
    :ext_path       => "/home/hudson/.rvm/rubies/rbx-head/lib/ext",
    :include18dir   => "/home/hudson/.rvm/rubies/rbx-head/18/include",
    :include19dir   => "/home/hudson/.rvm/rubies/rbx-head/19/include",
    :include20dir   => "/home/hudson/.rvm/rubies/rbx-head/19/include",
    :mandir         => "/home/hudson/.rvm/rubies/rbx-head/man",
    :gemsdir        => "/home/hudson/.rvm/rubies/rbx-head/gems",
    :sitedir        => "/home/hudson/.rvm/rubies/rbx-head/site",
    :vendordir      => "/home/hudson/.rvm/rubies/rbx-head/vendor",
    :program_name   => "rbx",
    :version        => "2.0.0dev",
    :libversion     => "2.0",
    :release_date   => "yyyy-mm-dd",
    :config_version => 139,
    :windows        => false,
    :darwin         => false,
    :bsd            => false,
    :linux          => true,
    :version_list   => ["18", "19"],
    :default_version => "18",
    :vendor_zlib    => false,
  }
end

platform info

$ uname -a
Linux commonwealth.newrelic.com 2.6.30.10-105.2.23.fc11.i586 #1 SMP Thu Feb 11 06:51:26 UTC 2010 i686 i686 i386 GNU/Linux

$ cat /etc/issue
Fedora release 11 (Leonidas)
Kernel \r on an \m (\l)