Can somone please decipher this error message for me? What do I need to do?

bsd: {2} fetchmailconf
Traceback (most recent call last):
  File "/usr/pkg/bin/fetchmailconf", line 9, in ?
      from Tkinter import *
	File "/usr/pkg/lib/python2.2/lib-tk/Tkinter.py", line 35, in ?
	    import _tkinter # If this fails your Python may not be configured for Tk
	    ImportError: /usr/pkg/lib/libtcl84.so.1: Undefined PLT symbol "pthread_setspecific" (reloc type = 7, symnum = 1145)

Thanks in advance.
-- 
Ja'far