FreeBSD adds an _ prefix to a number of libc symbols so they
can switch from threaded to non-threaded libraries. We don't
have that distinction and don't need this.
Unfortunately, they also explicitly use the _ prefixed names
of some methods. So we fix this in our version of namespace.h
This requires a full checkout of the FreeBSD 8.2 source code.
The checkout we have been using is missing at least the libc,
include, and sys directories. The script to copy files in is
crude.
This eventually needs to separate the manually written .h files
out and add the RTEMS specific network initialization support
with functionality to program the IP addresses and gateways as
the old stack did.