macports/dylib failure with libc++abi.dylib: terminate called throwing an exception Abort trap: 6
Both vowpal_wabbit and its dependency Boost seem to be getting wrongly compiled and linked with the system libstdc++ instead of macport's /opt/local/lib/libstdc++.6.dylib

Solution seems to be:

a) Hack the macports Boost install by either:


hack the portfile to override configure.cxxflags, linkflags
manually compile and link Boost as per Remove Boost libstdc++ dependency with clang++/libc++?


b) Then we have to hack the macports file to point VW to the Boost install