gcc -pg and ld error, "cannot find -lgcc_p"

[freebsd at t41t.com]

> >  Use sysinstall to add the proflibs distribution.
>
>	Or one could rebuild/install world (and kernel if necessary)
> after investigating the "NO_PROFILE" option in /etc/make.conf.

There's only a PERL_VERSION in make.conf. Since sysinstall doesn't work
(this is -p4, not a base media install), how does one go about installing
proflibs? I didn't see anything related to proflibs in the csup files.