missing libipt_mark.so

[sodb]

I compiled the iptables extension libraries (included in attached tar). Unfortunately, adding e.g. libipt_main.so and libipt_MAIN.so to the /usr/lib/iptables directory did not allow me to execute iptables -t mangle -j MARK --set-mark 11 or alike commands.

/usr/lib/iptables # iptables -A PREROUTING -t mangle -j MARK --set-mark 1

results in

iptables v1.2.7a: Unknown arg `--set-mark'
Try `iptables -h' or 'iptables --help' for more information.

When entering

/usr/lib/iptables # iptables -A PREROUTING -t mangle -j MARK
iptables v1.2.7a: Couldn't load target `MARK':/usr/lib/iptables/libipt_MARK.so: cannot open shared object file: No such file or directory

Try `iptables -h' or 'iptables --help' for more information.

Does anybody has a clue?