error running torscanner

[cclements]

After making the following changes to the makefile:

torproxy_LDFLAGS = -lboost_thread-mt -pthread
torproxy_LDADD = -lssl -lboost_system-mt -lcrypto
torscanner_LDFLAGS = -lboost_thread-mt -pthread
torscanner_LDADD = -lssl -lboost_system-mt -lcrypto

And changing the protocol/Directory.h file to match fb112b8

I am able to compile and install tortunnel without error, however, I receive the following error when attempting to run torscanner:

./torscanner -h
terminate called after throwing an instance of 'std::logic_error'
what(): basic_string::_S_construct null not valid
fish: Job 1, “./torscanner -h” terminated by signal SIGABRT (Abort)

Any ideas?