So I know that the boost libraries are primarily header-only but there are a few which require compilation, for example Boost.Thread. In Darwin, how do I compile these and pass the -m32 flag so they can be compiled into a 32-bit (i386) binary? There's this Jamroot thing which I've never heard of and I am not sure at all where to start.
Clarification: I'm not asking how to compile a program with -m32 flag and use the boost libraries. I'm asking how to compile the Boost libraries themselves with the -m32 flag.