New Post: 32-bit and 64-bit Binaries Supported on Linux?

It may be easier to simply set up a 32-bit chroot environment and build everything natively. This is a somewhat advanced topic so we won't be able to provide any help with that, but it should work.

https://help.ubuntu.com/community/DebootstrapChroot
http://jblevins.org/log/ubuntu-chroot