Raymond,
it looks like you just broke the build for me:
/Users/sasha/Work/python-svn/trunk/Modules/itertoolsmodule.c: In
function 'ifilter_next':
/Users/sasha/Work/python-svn/trunk/Modules/itertoolsmodule.c:2058:
error: invalid operands to binary ==
/Users/sasha/Work/python-svn/trunk/Modules/itertoolsmodule.c: In
function 'ifilterfalse_next':
/Users/sasha/Work/python-svn/trunk/Modules/itertoolsmodule.c:2202:
error: invalid operands to binary ==
$ svn update Modules/itertoolsmodule.c
At revision 61073.
(Mac OS 10.4)