PyPcap issues when running in-directory

Some of the issues I originally had when getting PyPcap setup back in June are re-surfacing, now that I've got PCS and PyPcap (as pcs.pcap) inside of the tcpregression folder:

>>> import pcs.pcap
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "pcs/__init__.py", line 68, in <module>
import pcs.pcap as pcap
ImportError: dlopen(pcs/pcap.so, 2): Symbol not found: _bpf_filter
Referenced from: /Users/zach/Documents/workspace/zjriggl_tcpregression/src/tcpregression/pcs/pcap.so
Expected in: dynamic lookup

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