segfault building python

[AGC <agcarver+netbsd%acarver.net@localhost>]

I was trying to build scons from pkgsrc (it's not available as a binary 
for 5.1-sparc) but the build explodes with a segfault while compiling 
one of the python (dependency) tests:

Compiling 
/usr/src/pkgsrc/lang/python26/work/.destdir/usr/pkg/lib/python2.6/test/test_builtin.py 
...
[1]   Segmentation fault (core dumped) PYTHONPATH=/usr/...
*** Error code 139

Stop.
make: stopped in /usr/src/pkgsrc/lang/python26/work/Python-2.6.7
*** Error code 1

Stop.
make: stopped in /usr/src/pkgsrc/lang/python26
*** Error code 1

Stop.
make: stopped in /usr/src/pkgsrc/lang/python26
*** Error code 1

Stop.
make: stopped in /usr/src/pkgsrc/devel/scons


I believe the source is current, I just downloaded it yesterday.