[Boost-users] [install] need to install 32 bit boost libraries on amd64 system

Hi all - Is it possible to build 32 bit boost libraries on amd64? When I try, I get complaints (errors) saying that pointers aren't the right size. I already have boost installed in /usr/lib64, but I need the 32 bit libs in /usr/lib32. I'm running the gentoo distribution, so a trick to build via emerge or a trick to build via tarball/configure would be great. Thanks for any help, Brian