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$ CFLAGS="-03" CXXFLAGS="-03" ./install.sh --build-boost --enable-ndebug --disable-shared --prefix=<path>
Because all hash functions are written in C++, you will get obscenely poor performance if you do not let the compiler fully optimize. With this setting the optimized code outperforms C implementations.$ CFLAGS="-O3" CXXFLAGS="-O3" ./install.sh --build-boost --enable-ndebug --disable-shared --prefix=<path>