[mod_python] Compile failure - init_socket multiply defined

I'm trying to compile mod_python 2.5 as a DSO with Apache 1.3.12 and
Python 2.0c1 on OpenBSD 2.7-ish.

I do:

apxs -I /usr/local/include/python2.0 -c mod_python.c /usr/local/lib/python2.0/config/libpython2.0.a

It says:

gcc -DDEV_RANDOM=/dev/arandom -DMOD_SSL=206102 -DEAPI -DUSE_EXPAT -I../lib/expat-lite -g -fPIC -DSHARED_MODULE -I/usr/lib/apache/include -pthread -I/usr/local/include/python2.0  -c mod_python.c
ld -Bforcearchive -Bshareable -o mod_python.so mod_python.o /usr/local/lib/python2.0/config/libpython2.0.a -lc_r
./socketmodule.c:2377: Definition of symbol `_init_socket' (multiply defined)
./socketmodule.c:2377: Definition of symbol `_init_socket' (multiply defined)
apxs:Break: Command failed with rc=65536

I am completely mystified as to why it says that init_socket is multiply
defined. I can't see more than one definition anywhere. Does anyone have
any suggestions?