Lenny security hardening features

[Danny Richards <dan.rich10@gmail.com>]

Hi,

It is written here <http://wiki.debian.org/NewInLenny#head-6e41dc18abd5f3c10b59000dabaf1f6b2ab7cad8>
that "some packages" in Lenny were built with GCC hardening features.

Is there any documentation about:
  1. Which packages were built this way ?
  2. Which features were used ?

Thanks,
Danny.