dev-python/python-selinux-2.16-r3 tries to install selinux_aux.so to /usr/lib/python2.x/site-packages/selinux_aux.so. This is hard-coded in the Makefile. However, multilib-strict requires it to be installed to /usr/lib64.
Note that dev-python/python-selinux-2.16-r2 had a QA warning for not respecting LDFLAGS, which was bug 355675. This was solved by 2.16-r3, but that is still not stabilized.
I might even drop the package if there is nothing depending on it. We don't use it in our SELinux bindings (since upstream support is sufficient) and it seems to be a gentoo-specific package.
The portage version is old and masked already, so probably going to disappear soon.
I don't think these use the SELinux bindings
Actually, that makes me realize that I'm not sure why I have it installed anymore. "equery d python-selinux" yields nothing for me.
Ok, removed dependency from the python-slip and will mask the package.
mask set and last rites sent
Removed from tree