FC5 tcltklib native thread support

[edredman]

I am running FC5 installed on two Pentium 4 machines.
Ruby 1.8.4-8 and ruby-tk are installed on both machines. I have asked this on the ruby and fedora newsgroups but have not received an answer.

when I try to use tk with ruby I get the following warning

irb
irb(main):001:0> require 'tk'
/usr/lib/ruby/1.8/tk.rb:1102: warning: Inconsistency. Loaded Tcl/Tk libraries are enabled nativethread-support. But `tcltklib' is not. The inconsistency causes SEGV or other troubles frequently.
=> true


My question is how can I cause tcltklib.so to have native thread support. Do I need to compile the source or is there something else I have to do