From: Adam Merz (adammerz_at_[hidden])
Date: 2008-08-15 10:58:51
I don't think define=arch:SSE2 has the effect you think it does; rather, I
believe what you want is cxxflags="-arch:SSE2". Also note that -arch has no
effect on 64-bit compilations, so it can be ommitted from the address-model=64
bjam invocations.