Command explanations
--sysconfdir=/etc/gnome: This command puts
configuration files in /etc/gnome instead of
/opt/gnome2/etc.
--localstatedir=/var/lib: This command
puts files in /var/lib instead of
/opt/gnome2/var.
--with-pam-prefix=/etc: This command puts
PAM
configuration files in /etc/pam.d instead of
/etc/gnome.