mpeg4ip requires IPv6

[Scott I. Remick]

An update for all of you following this:

There was a question on why I had two libm.so.* versions:

-r--r--r--  1 root  wheel   108400 Mar  1  2004 libm.so.2
-r--r--r--  1 root  wheel   114504 Nov 15 04:11 libm.so.3

It might be because I have compat4x installed. I seem to have it installed
because I have nvidia-driver installed, which requires libm.so.2 so it has
compat4x as a dependency.

Stranglely, I have the file in multiple places:

/lib/libm.so.2
/usr/local/lib/compat/libm.so.2

So I can't just remove compat4x unfortunately :(