[Taqwus]

GNU C Library.

If you're paranoid about mixing packages, it might be possible to install the updated version elsewhere, outside of any directory ordinarily known to ld.so, but where you might be able to apply it only to dom3.

ex. by writing a shell script that sets LD_LIBRARY_PATH to include the path to that specific glibc version, then invokes Dominions. It won't work if the dominions binary needs to be suid, and I'm not entirely sure that it'll work for glibc (perhaps conflicts, if it depends on other libraries that end up drawing in other glibc versions?), but it may be worth a shot. One could be more specific and use LD_LIBRARY_PRELOAD instead to load that specific glibc -- LD_LIBRARY_PATH merely tells ld.so where to look first.

I don't have my own Linux box, so I can't check this myself.