- disable gc tracking by default since there is a bug that cause segmentation faults.  no segmentation faults when gc tracking is off so something is wrong here.
- disable gc tracking by default since there is a bug that cause segmentation
faults.  no segmentation faults when gc tracking is off so something is
wrong here.

Lispython/pycurl,Lispython/pycurl,Lispython/pycurl