Can't compile databases/py-sqlite3

I'm running 10.0-CORRENT on amd64. Ports and source are both up to date.

When I try a 'make install' in /usr/ports/databases/py-sqlite3 I get this 
very early on:

===>   FreeBSD 10 autotools fix applied to /usr/ports/databases/py-
sqlite3/work/Python-2.7.5/configure
running config
<jemalloc>: /usr/src/lib/libc/../../contrib/jemalloc/include/jemalloc/
internal/arena.h:547: Failed assertion: "binind < NBINS || binind == 
BININD_INVALID"
*** Signal 6

Stop.
make: stopped in /usr/ports/databases/py-sqlite3

I'm afraid this binind business doesn't mean much to me. Is there 
anything I can do?