I have an amd64 system with a multilib profile; in particular, /etc/make.profile -> /usr/portage/profiles/default/linux/amd64/2008.0/desktop/ . However, it appears that emerging nss did not provide any libraries in my /usr/lib32/ directory; /usr/lib32/nss does not exist. Shouldn't I be getting a 32-bit version of nss in addition to my 64-bit version when I use a multilib profile? It's not like I can use one of the emul-linux-x86-* packages; none of them provide nss.
Currently there exists no real multilib support in portage or any other package manager, so you wont get any /usr/lib32/* independent of your profile and ebuild, if not explicitly done in the ebuild.
*** This bug has been marked as a duplicate of bug 252220 ***