Description of problem:

The version of sip bundled with Fedora Core is version 3.x, which uses
the old Python threading API.  This causes Python applications that
use sip (such as PyQt) to interface to C++ code to crash

Version-Release number of selected component (if applicable):

sip-3.10.2-2

How reproducible:

100%

Steps to Reproduce:
1. Write a small PyQt program (PyQt uses sip to generate bindings to Qt).
2. Run it.
3. Exit normally.
  
Actual results:

The program always segfaults.

Expected results:

If PyQt is compiled with sip 4.x, the program will not crash.

Additional info:

As of the time of this report, the current version of sip is 4.1.  I
have a working spec file that builds RPMs for both i386 and x86_64; I
would expect it to work on other arches, too.